Merge pull request #3465 from esphome/bump-2022.5.0b2

2022.5.0b2

.pre-commit-config.yaml

@@ -2,7 +2,7 @@
 # See https://pre-commit.com/hooks.html for more hooks
 repos:
   - repo: https://github.com/ambv/black
-    rev: 22.1.0
+    rev: 22.3.0
     hooks:
     - id: black
       args:
@@ -26,7 +26,7 @@ repos:
           - --branch=release
           - --branch=beta
   - repo: https://github.com/asottile/pyupgrade
-    rev: v2.31.0
+    rev: v2.31.1
     hooks:
       - id: pyupgrade
         args: [--py38-plus]

CODEOWNERS

@@ -28,8 +28,10 @@ esphome/components/atc_mithermometer/* @ahpohl
 esphome/components/b_parasite/* @rbaron
 esphome/components/ballu/* @bazuchan
 esphome/components/bang_bang/* @OttoWinter
+esphome/components/bedjet/* @jhansche
 esphome/components/bh1750/* @OttoWinter
 esphome/components/binary_sensor/* @esphome/core
+esphome/components/bl0939/* @ziceva
 esphome/components/bl0940/* @tobias-
 esphome/components/ble_client/* @buxtronix
 esphome/components/bme680_bsec/* @trvrnrth
@@ -53,11 +55,13 @@ esphome/components/current_based/* @djwmarcx
 esphome/components/daly_bms/* @s1lvi0
 esphome/components/dashboard_import/* @esphome/core
 esphome/components/debug/* @OttoWinter
+esphome/components/delonghi/* @grob6000
 esphome/components/dfplayer/* @glmnet
 esphome/components/dht/* @OttoWinter
 esphome/components/ds1307/* @badbadc0ffee
 esphome/components/dsmr/* @glmnet @zuidwijk
 esphome/components/ektf2232/* @jesserockz
+esphome/components/ens210/* @itn3rd77
 esphome/components/esp32/* @esphome/core
 esphome/components/esp32_ble/* @jesserockz
 esphome/components/esp32_ble_server/* @jesserockz
@@ -82,6 +86,7 @@ esphome/components/hitachi_ac424/* @sourabhjaiswal
 esphome/components/homeassistant/* @OttoWinter
 esphome/components/honeywellabp/* @RubyBailey
 esphome/components/hrxl_maxsonar_wr/* @netmikey
+esphome/components/hydreon_rgxx/* @functionpointer
 esphome/components/i2c/* @esphome/core
 esphome/components/improv_serial/* @esphome/core
 esphome/components/ina260/* @MrEditor97
@@ -151,6 +156,7 @@ esphome/components/preferences/* @esphome/core
 esphome/components/psram/* @esphome/core
 esphome/components/pulse_meter/* @cstaahl @stevebaxter
 esphome/components/pvvx_mithermometer/* @pasiz
+esphome/components/qmp6988/* @andrewpc
 esphome/components/qr_code/* @wjtje
 esphome/components/radon_eye_ble/* @jeffeb3
 esphome/components/radon_eye_rd200/* @jeffeb3
@@ -162,20 +168,26 @@ esphome/components/rf_bridge/* @jesserockz
 esphome/components/rgbct/* @jesserockz
 esphome/components/rtttl/* @glmnet
 esphome/components/safe_mode/* @jsuanet @paulmonigatti
-esphome/components/scd4x/* @sjtrny
+esphome/components/scd4x/* @martgras @sjtrny
 esphome/components/script/* @esphome/core
 esphome/components/sdm_meter/* @jesserockz @polyfaces
 esphome/components/sdp3x/* @Azimath
 esphome/components/selec_meter/* @sourabhjaiswal
 esphome/components/select/* @esphome/core
+esphome/components/sen5x/* @martgras
+esphome/components/sensirion_common/* @martgras
 esphome/components/sensor/* @esphome/core
 esphome/components/sgp40/* @SenexCrenshaw
+esphome/components/shelly_dimmer/* @edge90 @rnauber
 esphome/components/sht4x/* @sjtrny
 esphome/components/shutdown/* @esphome/core @jsuanet
 esphome/components/sim800l/* @glmnet
 esphome/components/sm2135/* @BoukeHaarsma23
+esphome/components/sml/* @alengwenus
 esphome/components/socket/* @esphome/core
+esphome/components/sonoff_d1/* @anatoly-savchenkov
 esphome/components/spi/* @esphome/core
+esphome/components/sps30/* @martgras
 esphome/components/ssd1322_base/* @kbx81
 esphome/components/ssd1322_spi/* @kbx81
 esphome/components/ssd1325_base/* @kbx81
@@ -222,4 +234,5 @@ esphome/components/whirlpool/* @glmnet
 esphome/components/xiaomi_lywsd03mmc/* @ahpohl
 esphome/components/xiaomi_mhoc303/* @drug123
 esphome/components/xiaomi_mhoc401/* @vevsvevs
+esphome/components/xiaomi_rtcgq02lm/* @jesserockz
 esphome/components/xpt2046/* @numo68

docker/Dockerfile

@@ -6,13 +6,13 @@
 ARG BASEIMGTYPE=docker
 
 # https://github.com/hassio-addons/addon-debian-base/releases
-FROM ghcr.io/hassio-addons/debian-base/amd64:5.2.3 AS base-hassio-amd64
-FROM ghcr.io/hassio-addons/debian-base/aarch64:5.2.3 AS base-hassio-arm64
-FROM ghcr.io/hassio-addons/debian-base/armv7:5.2.3 AS base-hassio-armv7
+FROM ghcr.io/hassio-addons/debian-base/amd64:5.3.0 AS base-hassio-amd64
+FROM ghcr.io/hassio-addons/debian-base/aarch64:5.3.0 AS base-hassio-arm64
+FROM ghcr.io/hassio-addons/debian-base/armv7:5.3.0 AS base-hassio-armv7
 # https://hub.docker.com/_/debian?tab=tags&page=1&name=bullseye
-FROM debian:bullseye-20220125-slim AS base-docker-amd64
-FROM debian:bullseye-20220125-slim AS base-docker-arm64
-FROM debian:bullseye-20220125-slim AS base-docker-armv7
+FROM debian:bullseye-20220328-slim AS base-docker-amd64
+FROM debian:bullseye-20220328-slim AS base-docker-arm64
+FROM debian:bullseye-20220328-slim AS base-docker-armv7
 
 # Use TARGETARCH/TARGETVARIANT defined by docker
 # https://docs.docker.com/engine/reference/builder/#automatic-platform-args-in-the-global-scope
@@ -23,13 +23,14 @@ RUN \
     # Use pinned versions so that we get updates with build caching
     && apt-get install -y --no-install-recommends \
         python3=3.9.2-3 \
-        python3-pip=20.3.4-4 \
+        python3-pip=20.3.4-4+deb11u1 \
         python3-setuptools=52.0.0-4 \
         python3-pil=8.1.2+dfsg-0.3+deb11u1 \
         python3-cryptography=3.3.2-1 \
         iputils-ping=3:20210202-1 \
         git=1:2.30.2-1 \
         curl=7.74.0-1.3+deb11u1 \
+        openssh-client=1:8.4p1-5 \
     && rm -rf \
         /tmp/* \
         /var/{cache,log}/* \

esphome/__main__.py

@@ -2,6 +2,7 @@ import argparse
 import functools
 import logging
 import os
+import re
 import sys
 from datetime import datetime
 
@@ -9,15 +10,18 @@ from esphome import const, writer, yaml_util
 import esphome.codegen as cg
 from esphome.config import iter_components, read_config, strip_default_ids
 from esphome.const import (
+    ALLOWED_NAME_CHARS,
     CONF_BAUD_RATE,
     CONF_BROKER,
     CONF_DEASSERT_RTS_DTR,
     CONF_LOGGER,
+    CONF_NAME,
     CONF_OTA,
     CONF_PASSWORD,
     CONF_PORT,
     CONF_ESPHOME,
     CONF_PLATFORMIO_OPTIONS,
+    CONF_SUBSTITUTIONS,
     SECRETS_FILES,
 )
 from esphome.core import CORE, EsphomeError, coroutine
@@ -481,6 +485,98 @@ def command_idedata(args, config):
     return 0
 
 
+def command_rename(args, config):
+    for c in args.name:
+        if c not in ALLOWED_NAME_CHARS:
+            print(
+                color(
+                    Fore.BOLD_RED,
+                    f"'{c}' is an invalid character for names. Valid characters are: "
+                    f"{ALLOWED_NAME_CHARS} (lowercase, no spaces)",
+                )
+            )
+            return 1
+    # Load existing yaml file
+    with open(CORE.config_path, mode="r+", encoding="utf-8") as raw_file:
+        raw_contents = raw_file.read()
+
+    yaml = yaml_util.load_yaml(CORE.config_path)
+    if CONF_ESPHOME not in yaml or CONF_NAME not in yaml[CONF_ESPHOME]:
+        print(
+            color(Fore.BOLD_RED, "Complex YAML files cannot be automatically renamed.")
+        )
+        return 1
+    old_name = yaml[CONF_ESPHOME][CONF_NAME]
+    match = re.match(r"^\$\{?([a-zA-Z0-9_]+)\}?$", old_name)
+    if match is None:
+        new_raw = re.sub(
+            rf"name:\s+[\"']?{old_name}[\"']?",
+            f'name: "{args.name}"',
+            raw_contents,
+        )
+    else:
+        old_name = yaml[CONF_SUBSTITUTIONS][match.group(1)]
+        if (
+            len(
+                re.findall(
+                    rf"^\s+{match.group(1)}:\s+[\"']?{old_name}[\"']?",
+                    raw_contents,
+                    flags=re.MULTILINE,
+                )
+            )
+            > 1
+        ):
+            print(color(Fore.BOLD_RED, "Too many matches in YAML to safely rename"))
+            return 1
+
+        new_raw = re.sub(
+            rf"^(\s+{match.group(1)}):\s+[\"']?{old_name}[\"']?",
+            f'\\1: "{args.name}"',
+            raw_contents,
+            flags=re.MULTILINE,
+        )
+
+    new_path = os.path.join(CORE.config_dir, args.name + ".yaml")
+    print(
+        f"Updating {color(Fore.CYAN, CORE.config_path)} to {color(Fore.CYAN, new_path)}"
+    )
+    print()
+
+    with open(new_path, mode="w", encoding="utf-8") as new_file:
+        new_file.write(new_raw)
+
+    rc = run_external_process("esphome", "config", new_path)
+    if rc != 0:
+        print(color(Fore.BOLD_RED, "Rename failed. Reverting changes."))
+        os.remove(new_path)
+        return 1
+
+    cli_args = [
+        "run",
+        new_path,
+        "--no-logs",
+        "--device",
+        CORE.address,
+    ]
+
+    if args.dashboard:
+        cli_args.insert(0, "--dashboard")
+
+    try:
+        rc = run_external_process("esphome", *cli_args)
+    except KeyboardInterrupt:
+        rc = 1
+    if rc != 0:
+        os.remove(new_path)
+        return 1
+
+    os.remove(CORE.config_path)
+
+    print(color(Fore.BOLD_GREEN, "SUCCESS"))
+    print()
+    return 0
+
+
 PRE_CONFIG_ACTIONS = {
     "wizard": command_wizard,
     "version": command_version,
@@ -499,6 +595,7 @@ POST_CONFIG_ACTIONS = {
     "mqtt-fingerprint": command_mqtt_fingerprint,
     "clean": command_clean,
     "idedata": command_idedata,
+    "rename": command_rename,
 }
 
 
@@ -681,6 +778,15 @@ def parse_args(argv):
         "configuration", help="Your YAML configuration file(s).", nargs=1
     )
 
+    parser_rename = subparsers.add_parser(
+        "rename",
+        help="Rename a device in YAML, compile the binary and upload it.",
+    )
+    parser_rename.add_argument(
+        "configuration", help="Your YAML configuration file.", nargs=1
+    )
+    parser_rename.add_argument("name", help="The new name for the device.", type=str)
+
     # Keep backward compatibility with the old command line format of
     # esphome <config> <command>.
     #

esphome/automation.py

@@ -262,21 +262,16 @@ async def repeat_action_to_code(config, action_id, template_arg, args):
     return var
 
 
-def validate_wait_until(value):
-    schema = cv.Schema(
-        {
-            cv.Required(CONF_CONDITION): validate_potentially_and_condition,
-            cv.Optional(CONF_TIMEOUT): cv.templatable(
-                cv.positive_time_period_milliseconds
-            ),
-        }
-    )
-    if isinstance(value, dict) and CONF_CONDITION in value:
-        return schema(value)
-    return validate_wait_until({CONF_CONDITION: value})
+_validate_wait_until = cv.maybe_simple_value(
+    {
+        cv.Required(CONF_CONDITION): validate_potentially_and_condition,
+        cv.Optional(CONF_TIMEOUT): cv.templatable(cv.positive_time_period_milliseconds),
+    },
+    key=CONF_CONDITION,
+)
 
 
-@register_action("wait_until", WaitUntilAction, validate_wait_until)
+@register_action("wait_until", WaitUntilAction, _validate_wait_until)
 async def wait_until_action_to_code(config, action_id, template_arg, args):
     conditions = await build_condition(config[CONF_CONDITION], template_arg, args)
     var = cg.new_Pvariable(action_id, template_arg, conditions)

esphome/codegen.py

@@ -64,6 +64,7 @@ from esphome.cpp_types import (  # noqa
     uint64,
     int32,
     int64,
+    size_t,
     const_char_ptr,
     NAN,
     esphome_ns,

esphome/components/adc/adc_sensor.cpp

@@ -51,8 +51,8 @@ void ADCSensor::setup() {
     }
   }
 
-  // adc_gpio_init doesn't exist on ESP32-C3 or ESP32-H2
-#if !defined(USE_ESP32_VARIANT_ESP32C3) && !defined(USE_ESP32_VARIANT_ESP32H2)
+  // adc_gpio_init doesn't exist on ESP32-S2, ESP32-C3 or ESP32-H2
+#if !defined(USE_ESP32_VARIANT_ESP32C3) && !defined(USE_ESP32_VARIANT_ESP32H2) && !defined(USE_ESP32_VARIANT_ESP32S2)
   adc_gpio_init(ADC_UNIT_1, (adc_channel_t) channel_);
 #endif
 #endif  // USE_ESP32

esphome/components/animation/__init__.py

@@ -76,6 +76,8 @@ async def to_code(config):
         pos = 0
         for frameIndex in range(frames):
             image.seek(frameIndex)
+            if CONF_RESIZE in config:
+                image.thumbnail(config[CONF_RESIZE])
             frame = image.convert("RGB")
             if CONF_RESIZE in config:
                 frame = frame.resize([width, height])
@@ -92,6 +94,29 @@ async def to_code(config):
                 data[pos] = pix[2]
                 pos += 1
 
+    elif config[CONF_TYPE] == "RGB565":
+        data = [0 for _ in range(height * width * 2 * frames)]
+        pos = 0
+        for frameIndex in range(frames):
+            image.seek(frameIndex)
+            frame = image.convert("RGB")
+            if CONF_RESIZE in config:
+                frame = frame.resize([width, height])
+            pixels = list(frame.getdata())
+            if len(pixels) != height * width:
+                raise core.EsphomeError(
+                    f"Unexpected number of pixels in {path} frame {frameIndex}: ({len(pixels)} != {height*width})"
+                )
+            for pix in pixels:
+                R = pix[0] >> 3
+                G = pix[1] >> 2
+                B = pix[2] >> 3
+                rgb = (R << 11) | (G << 5) | B
+                data[pos] = rgb >> 8
+                pos += 1
+                data[pos] = rgb & 255
+                pos += 1
+
     elif config[CONF_TYPE] == "BINARY":
         width8 = ((width + 7) // 8) * 8
         data = [0 for _ in range((height * width8 // 8) * frames)]

esphome/components/api/api_connection.cpp

@@ -23,7 +23,7 @@ static const char *const TAG = "api.connection";
 static const int ESP32_CAMERA_STOP_STREAM = 5000;
 
 APIConnection::APIConnection(std::unique_ptr<socket::Socket> sock, APIServer *parent)
-    : parent_(parent), initial_state_iterator_(parent, this), list_entities_iterator_(parent, this) {
+    : parent_(parent), initial_state_iterator_(this), list_entities_iterator_(this) {
   this->proto_write_buffer_.reserve(64);
 
 #if defined(USE_API_PLAINTEXT)

esphome/components/api/api_server.cpp

@@ -255,7 +255,7 @@ void APIServer::on_number_update(number::Number *obj, float state) {
 #endif
 
 #ifdef USE_SELECT
-void APIServer::on_select_update(select::Select *obj, const std::string &state) {
+void APIServer::on_select_update(select::Select *obj, const std::string &state, size_t index) {
   if (obj->is_internal())
     return;
   for (auto &c : this->clients_)

esphome/components/api/api_server.h

@@ -7,7 +7,6 @@
 #include "esphome/components/socket/socket.h"
 #include "api_pb2.h"
 #include "api_pb2_service.h"
-#include "util.h"
 #include "list_entities.h"
 #include "subscribe_state.h"
 #include "user_services.h"
@@ -65,7 +64,7 @@ class APIServer : public Component, public Controller {
   void on_number_update(number::Number *obj, float state) override;
 #endif
 #ifdef USE_SELECT
-  void on_select_update(select::Select *obj, const std::string &state) override;
+  void on_select_update(select::Select *obj, const std::string &state, size_t index) override;
 #endif
 #ifdef USE_LOCK
   void on_lock_update(lock::Lock *obj) override;

esphome/components/api/list_entities.cpp

@@ -40,8 +40,7 @@ bool ListEntitiesIterator::on_lock(lock::Lock *a_lock) { return this->client_->s
 #endif
 
 bool ListEntitiesIterator::on_end() { return this->client_->send_list_info_done(); }
-ListEntitiesIterator::ListEntitiesIterator(APIServer *server, APIConnection *client)
-    : ComponentIterator(server), client_(client) {}
+ListEntitiesIterator::ListEntitiesIterator(APIConnection *client) : client_(client) {}
 bool ListEntitiesIterator::on_service(UserServiceDescriptor *service) {
   auto resp = service->encode_list_service_response();
   return this->client_->send_list_entities_services_response(resp);

esphome/components/api/list_entities.h

@@ -1,8 +1,8 @@
 #pragma once
 
 #include "esphome/core/component.h"
+#include "esphome/core/component_iterator.h"
 #include "esphome/core/defines.h"
-#include "util.h"
 
 namespace esphome {
 namespace api {
@@ -11,7 +11,7 @@ class APIConnection;
 
 class ListEntitiesIterator : public ComponentIterator {
  public:
-  ListEntitiesIterator(APIServer *server, APIConnection *client);
+  ListEntitiesIterator(APIConnection *client);
 #ifdef USE_BINARY_SENSOR
   bool on_binary_sensor(binary_sensor::BinarySensor *binary_sensor) override;
 #endif
@@ -60,5 +60,3 @@ class ListEntitiesIterator : public ComponentIterator {
 
 }  // namespace api
 }  // namespace esphome
-
-#include "api_server.h"

esphome/components/api/proto.cpp

@@ -1,5 +1,4 @@
 #include "proto.h"
-#include "util.h"
 #include "esphome/core/log.h"
 
 namespace esphome {

esphome/components/api/proto.h

@@ -195,6 +195,20 @@ class ProtoWriteBuffer {
     this->write((value >> 16) & 0xFF);
     this->write((value >> 24) & 0xFF);
   }
+  void encode_fixed64(uint32_t field_id, uint64_t value, bool force = false) {
+    if (value == 0 && !force)
+      return;
+
+    this->encode_field_raw(field_id, 5);
+    this->write((value >> 0) & 0xFF);
+    this->write((value >> 8) & 0xFF);
+    this->write((value >> 16) & 0xFF);
+    this->write((value >> 24) & 0xFF);
+    this->write((value >> 32) & 0xFF);
+    this->write((value >> 40) & 0xFF);
+    this->write((value >> 48) & 0xFF);
+    this->write((value >> 56) & 0xFF);
+  }
   template<typename T> void encode_enum(uint32_t field_id, T value, bool force = false) {
     this->encode_uint32(field_id, static_cast<uint32_t>(value), force);
   }
@@ -229,6 +243,15 @@ class ProtoWriteBuffer {
     }
     this->encode_uint32(field_id, uvalue, force);
   }
+  void encode_sint64(uint32_t field_id, int64_t value, bool force = false) {
+    uint64_t uvalue;
+    if (value < 0) {
+      uvalue = ~(value << 1);
+    } else {
+      uvalue = value << 1;
+    }
+    this->encode_uint64(field_id, uvalue, force);
+  }
   template<class C> void encode_message(uint32_t field_id, const C &value, bool force = false) {
     this->encode_field_raw(field_id, 2);
     size_t begin = this->buffer_->size();

esphome/components/api/subscribe_state.cpp

@@ -50,8 +50,7 @@ bool InitialStateIterator::on_select(select::Select *select) {
 #ifdef USE_LOCK
 bool InitialStateIterator::on_lock(lock::Lock *a_lock) { return this->client_->send_lock_state(a_lock, a_lock->state); }
 #endif
-InitialStateIterator::InitialStateIterator(APIServer *server, APIConnection *client)
-    : ComponentIterator(server), client_(client) {}
+InitialStateIterator::InitialStateIterator(APIConnection *client) : client_(client) {}
 
 }  // namespace api
 }  // namespace esphome

esphome/components/api/subscribe_state.h

@@ -1,9 +1,9 @@
 #pragma once
 
 #include "esphome/core/component.h"
+#include "esphome/core/component_iterator.h"
 #include "esphome/core/controller.h"
 #include "esphome/core/defines.h"
-#include "util.h"
 
 namespace esphome {
 namespace api {
@@ -12,7 +12,7 @@ class APIConnection;
 
 class InitialStateIterator : public ComponentIterator {
  public:
-  InitialStateIterator(APIServer *server, APIConnection *client);
+  InitialStateIterator(APIConnection *client);
 #ifdef USE_BINARY_SENSOR
   bool on_binary_sensor(binary_sensor::BinarySensor *binary_sensor) override;
 #endif
@@ -55,5 +55,3 @@ class InitialStateIterator : public ComponentIterator {
 
 }  // namespace api
 }  // namespace esphome
-
-#include "api_server.h"

esphome/components/b_parasite/b_parasite.cpp

@@ -38,7 +38,7 @@ bool BParasite::parse_device(const esp32_ble_tracker::ESPBTDevice &device) {
   const auto &data = service_data.data;
 
   const uint8_t protocol_version = data[0] >> 4;
-  if (protocol_version != 1) {
+  if (protocol_version != 1 && protocol_version != 2) {
     ESP_LOGE(TAG, "Unsupported protocol version: %u", protocol_version);
     return false;
   }
@@ -57,9 +57,15 @@ bool BParasite::parse_device(const esp32_ble_tracker::ESPBTDevice &device) {
   uint16_t battery_millivolt = data[2] << 8 | data[3];
   float battery_voltage = battery_millivolt / 1000.0f;
 
-  // Temperature in 1000 * Celsius.
-  uint16_t temp_millicelcius = data[4] << 8 | data[5];
-  float temp_celcius = temp_millicelcius / 1000.0f;
+  // Temperature in 1000 * Celsius (protocol v1) or 100 * Celsius (protocol v2).
+  float temp_celsius;
+  if (protocol_version == 1) {
+    uint16_t temp_millicelsius = data[4] << 8 | data[5];
+    temp_celsius = temp_millicelsius / 1000.0f;
+  } else {
+    int16_t temp_centicelsius = data[4] << 8 | data[5];
+    temp_celsius = temp_centicelsius / 100.0f;
+  }
 
   // Relative air humidity in the range [0, 2^16).
   uint16_t humidity = data[6] << 8 | data[7];
@@ -76,7 +82,7 @@ bool BParasite::parse_device(const esp32_ble_tracker::ESPBTDevice &device) {
     battery_voltage_->publish_state(battery_voltage);
   }
   if (temperature_ != nullptr) {
-    temperature_->publish_state(temp_celcius);
+    temperature_->publish_state(temp_celsius);
   }
   if (humidity_ != nullptr) {
     humidity_->publish_state(humidity_percent);

esphome/components/bedjet/__init__.py

@@ -0,0 +1 @@
+CODEOWNERS = ["@jhansche"]

esphome/components/bedjet/bedjet.cpp

@@ -0,0 +1,644 @@
+#include "bedjet.h"
+#include "esphome/core/log.h"
+
+#ifdef USE_ESP32
+
+namespace esphome {
+namespace bedjet {
+
+using namespace esphome::climate;
+
+/// Converts a BedJet temp step into degrees Celsius.
+float bedjet_temp_to_c(const uint8_t temp) {
+  // BedJet temp is "C*2"; to get C, divide by 2.
+  return temp / 2.0f;
+}
+
+/// Converts a BedJet fan step to a speed percentage, in the range of 5% to 100%.
+uint8_t bedjet_fan_step_to_speed(const uint8_t fan) {
+  //  0 =  5%
+  // 19 = 100%
+  return 5 * fan + 5;
+}
+
+static const std::string *bedjet_fan_step_to_fan_mode(const uint8_t fan_step) {
+  if (fan_step >= 0 && fan_step <= 19)
+    return &BEDJET_FAN_STEP_NAME_STRINGS[fan_step];
+  return nullptr;
+}
+
+static uint8_t bedjet_fan_speed_to_step(const std::string &fan_step_percent) {
+  for (int i = 0; i < sizeof(BEDJET_FAN_STEP_NAME_STRINGS); i++) {
+    if (fan_step_percent == BEDJET_FAN_STEP_NAME_STRINGS[i]) {
+      return i;
+    }
+  }
+  return -1;
+}
+
+void Bedjet::upgrade_firmware() {
+  auto *pkt = this->codec_->get_button_request(MAGIC_UPDATE);
+  auto status = this->write_bedjet_packet_(pkt);
+
+  if (status) {
+    ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+  }
+}
+
+void Bedjet::dump_config() {
+  LOG_CLIMATE("", "BedJet Climate", this);
+  auto traits = this->get_traits();
+
+  ESP_LOGCONFIG(TAG, "  Supported modes:");
+  for (auto mode : traits.get_supported_modes()) {
+    ESP_LOGCONFIG(TAG, "   - %s", LOG_STR_ARG(climate_mode_to_string(mode)));
+  }
+
+  ESP_LOGCONFIG(TAG, "  Supported fan modes:");
+  for (const auto &mode : traits.get_supported_fan_modes()) {
+    ESP_LOGCONFIG(TAG, "   - %s", LOG_STR_ARG(climate_fan_mode_to_string(mode)));
+  }
+  for (const auto &mode : traits.get_supported_custom_fan_modes()) {
+    ESP_LOGCONFIG(TAG, "   - %s (c)", mode.c_str());
+  }
+
+  ESP_LOGCONFIG(TAG, "  Supported presets:");
+  for (auto preset : traits.get_supported_presets()) {
+    ESP_LOGCONFIG(TAG, "   - %s", LOG_STR_ARG(climate_preset_to_string(preset)));
+  }
+  for (const auto &preset : traits.get_supported_custom_presets()) {
+    ESP_LOGCONFIG(TAG, "   - %s (c)", preset.c_str());
+  }
+}
+
+void Bedjet::setup() {
+  this->codec_ = make_unique<BedjetCodec>();
+
+  // restore set points
+  auto restore = this->restore_state_();
+  if (restore.has_value()) {
+    ESP_LOGI(TAG, "Restored previous saved state.");
+    restore->apply(this);
+  } else {
+    // Initial status is unknown until we connect
+    this->reset_state_();
+  }
+
+#ifdef USE_TIME
+  this->setup_time_();
+#endif
+}
+
+/** Resets states to defaults. */
+void Bedjet::reset_state_() {
+  this->mode = climate::CLIMATE_MODE_OFF;
+  this->action = climate::CLIMATE_ACTION_IDLE;
+  this->target_temperature = NAN;
+  this->current_temperature = NAN;
+  this->preset.reset();
+  this->custom_preset.reset();
+  this->publish_state();
+}
+
+void Bedjet::loop() {}
+
+void Bedjet::control(const ClimateCall &call) {
+  ESP_LOGD(TAG, "Received Bedjet::control");
+  if (this->node_state != espbt::ClientState::ESTABLISHED) {
+    ESP_LOGW(TAG, "Not connected, cannot handle control call yet.");
+    return;
+  }
+
+  if (call.get_mode().has_value()) {
+    ClimateMode mode = *call.get_mode();
+    BedjetPacket *pkt;
+    switch (mode) {
+      case climate::CLIMATE_MODE_OFF:
+        pkt = this->codec_->get_button_request(BTN_OFF);
+        break;
+      case climate::CLIMATE_MODE_HEAT:
+        pkt = this->codec_->get_button_request(BTN_HEAT);
+        break;
+      case climate::CLIMATE_MODE_FAN_ONLY:
+        pkt = this->codec_->get_button_request(BTN_COOL);
+        break;
+      case climate::CLIMATE_MODE_DRY:
+        pkt = this->codec_->get_button_request(BTN_DRY);
+        break;
+      default:
+        ESP_LOGW(TAG, "Unsupported mode: %d", mode);
+        return;
+    }
+
+    auto status = this->write_bedjet_packet_(pkt);
+
+    if (status) {
+      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+    } else {
+      this->force_refresh_ = true;
+      this->mode = mode;
+      // We're using (custom) preset for Turbo, EXT HT, & M1-3 presets, so changing climate mode will clear those
+      this->custom_preset.reset();
+      this->preset.reset();
+    }
+  }
+
+  if (call.get_target_temperature().has_value()) {
+    auto target_temp = *call.get_target_temperature();
+    auto *pkt = this->codec_->get_set_target_temp_request(target_temp);
+    auto status = this->write_bedjet_packet_(pkt);
+
+    if (status) {
+      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+    } else {
+      this->target_temperature = target_temp;
+    }
+  }
+
+  if (call.get_preset().has_value()) {
+    ClimatePreset preset = *call.get_preset();
+    BedjetPacket *pkt;
+
+    if (preset == climate::CLIMATE_PRESET_BOOST) {
+      pkt = this->codec_->get_button_request(BTN_TURBO);
+    } else {
+      ESP_LOGW(TAG, "Unsupported preset: %d", preset);
+      return;
+    }
+
+    auto status = this->write_bedjet_packet_(pkt);
+    if (status) {
+      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+    } else {
+      // We use BOOST preset for TURBO mode, which is a short-lived/high-heat mode.
+      this->mode = climate::CLIMATE_MODE_HEAT;
+      this->preset = preset;
+      this->custom_preset.reset();
+      this->force_refresh_ = true;
+    }
+  } else if (call.get_custom_preset().has_value()) {
+    std::string preset = *call.get_custom_preset();
+    BedjetPacket *pkt;
+
+    if (preset == "M1") {
+      pkt = this->codec_->get_button_request(BTN_M1);
+    } else if (preset == "M2") {
+      pkt = this->codec_->get_button_request(BTN_M2);
+    } else if (preset == "M3") {
+      pkt = this->codec_->get_button_request(BTN_M3);
+    } else if (preset == "EXT HT") {
+      pkt = this->codec_->get_button_request(BTN_EXTHT);
+    } else {
+      ESP_LOGW(TAG, "Unsupported preset: %s", preset.c_str());
+      return;
+    }
+
+    auto status = this->write_bedjet_packet_(pkt);
+    if (status) {
+      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+    } else {
+      this->force_refresh_ = true;
+      this->custom_preset = preset;
+      this->preset.reset();
+    }
+  }
+
+  if (call.get_fan_mode().has_value()) {
+    // Climate fan mode only supports low/med/high, but the BedJet supports 5-100% increments.
+    // We can still support a ClimateCall that requests low/med/high, and just translate it to a step increment here.
+    auto fan_mode = *call.get_fan_mode();
+    BedjetPacket *pkt;
+    if (fan_mode == climate::CLIMATE_FAN_LOW) {
+      pkt = this->codec_->get_set_fan_speed_request(3 /* = 20% */);
+    } else if (fan_mode == climate::CLIMATE_FAN_MEDIUM) {
+      pkt = this->codec_->get_set_fan_speed_request(9 /* = 50% */);
+    } else if (fan_mode == climate::CLIMATE_FAN_HIGH) {
+      pkt = this->codec_->get_set_fan_speed_request(14 /* = 75% */);
+    } else {
+      ESP_LOGW(TAG, "[%s] Unsupported fan mode: %s", this->get_name().c_str(),
+               LOG_STR_ARG(climate_fan_mode_to_string(fan_mode)));
+      return;
+    }
+
+    auto status = this->write_bedjet_packet_(pkt);
+    if (status) {
+      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+    } else {
+      this->force_refresh_ = true;
+    }
+  } else if (call.get_custom_fan_mode().has_value()) {
+    auto fan_mode = *call.get_custom_fan_mode();
+    auto fan_step = bedjet_fan_speed_to_step(fan_mode);
+    if (fan_step >= 0 && fan_step <= 19) {
+      ESP_LOGV(TAG, "[%s] Converted fan mode %s to bedjet fan step %d", this->get_name().c_str(), fan_mode.c_str(),
+               fan_step);
+      // The index should represent the fan_step index.
+      BedjetPacket *pkt = this->codec_->get_set_fan_speed_request(fan_step);
+      auto status = this->write_bedjet_packet_(pkt);
+      if (status) {
+        ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+      } else {
+        this->force_refresh_ = true;
+      }
+    }
+  }
+}
+
+void Bedjet::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param) {
+  switch (event) {
+    case ESP_GATTC_DISCONNECT_EVT: {
+      ESP_LOGV(TAG, "Disconnected: reason=%d", param->disconnect.reason);
+      this->status_set_warning();
+      break;
+    }
+    case ESP_GATTC_SEARCH_CMPL_EVT: {
+      auto *chr = this->parent_->get_characteristic(BEDJET_SERVICE_UUID, BEDJET_COMMAND_UUID);
+      if (chr == nullptr) {
+        ESP_LOGW(TAG, "[%s] No control service found at device, not a BedJet..?", this->get_name().c_str());
+        break;
+      }
+      this->char_handle_cmd_ = chr->handle;
+
+      chr = this->parent_->get_characteristic(BEDJET_SERVICE_UUID, BEDJET_STATUS_UUID);
+      if (chr == nullptr) {
+        ESP_LOGW(TAG, "[%s] No status service found at device, not a BedJet..?", this->get_name().c_str());
+        break;
+      }
+
+      this->char_handle_status_ = chr->handle;
+      // We also need to obtain the config descriptor for this handle.
+      // Otherwise once we set node_state=Established, the parent will flush all handles/descriptors, and we won't be
+      // able to look it up.
+      auto *descr = this->parent_->get_config_descriptor(this->char_handle_status_);
+      if (descr == nullptr) {
+        ESP_LOGW(TAG, "No config descriptor for status handle 0x%x. Will not be able to receive status notifications",
+                 this->char_handle_status_);
+      } else if (descr->uuid.get_uuid().len != ESP_UUID_LEN_16 ||
+                 descr->uuid.get_uuid().uuid.uuid16 != ESP_GATT_UUID_CHAR_CLIENT_CONFIG) {
+        ESP_LOGW(TAG, "Config descriptor 0x%x (uuid %s) is not a client config char uuid", this->char_handle_status_,
+                 descr->uuid.to_string().c_str());
+      } else {
+        this->config_descr_status_ = descr->handle;
+      }
+
+      chr = this->parent_->get_characteristic(BEDJET_SERVICE_UUID, BEDJET_NAME_UUID);
+      if (chr != nullptr) {
+        this->char_handle_name_ = chr->handle;
+        auto status = esp_ble_gattc_read_char(this->parent_->gattc_if, this->parent_->conn_id, this->char_handle_name_,
+                                              ESP_GATT_AUTH_REQ_NONE);
+        if (status) {
+          ESP_LOGI(TAG, "[%s] Unable to read name characteristic: %d", this->get_name().c_str(), status);
+        }
+      }
+
+      ESP_LOGD(TAG, "Services complete: obtained char handles.");
+      this->node_state = espbt::ClientState::ESTABLISHED;
+
+      this->set_notify_(true);
+
+#ifdef USE_TIME
+      if (this->time_id_.has_value()) {
+        this->send_local_time_();
+      }
+#endif
+      break;
+    }
+    case ESP_GATTC_WRITE_DESCR_EVT: {
+      if (param->write.status != ESP_GATT_OK) {
+        // ESP_GATT_INVALID_ATTR_LEN
+        ESP_LOGW(TAG, "Error writing descr at handle 0x%04d, status=%d", param->write.handle, param->write.status);
+        break;
+      }
+      // [16:44:44][V][bedjet:279]: [JOENJET] Register for notify event success: h=0x002a s=0
+      // This might be the enable-notify descriptor? (or disable-notify)
+      ESP_LOGV(TAG, "[%s] Write to handle 0x%04x status=%d", this->get_name().c_str(), param->write.handle,
+               param->write.status);
+      break;
+    }
+    case ESP_GATTC_WRITE_CHAR_EVT: {
+      if (param->write.status != ESP_GATT_OK) {
+        ESP_LOGW(TAG, "Error writing char at handle 0x%04d, status=%d", param->write.handle, param->write.status);
+        break;
+      }
+      if (param->write.handle == this->char_handle_cmd_) {
+        if (this->force_refresh_) {
+          // Command write was successful. Publish the pending state, hoping that notify will kick in.
+          this->publish_state();
+        }
+      }
+      break;
+    }
+    case ESP_GATTC_READ_CHAR_EVT: {
+      if (param->read.conn_id != this->parent_->conn_id)
+        break;
+      if (param->read.status != ESP_GATT_OK) {
+        ESP_LOGW(TAG, "Error reading char at handle %d, status=%d", param->read.handle, param->read.status);
+        break;
+      }
+      if (param->read.handle == this->char_handle_status_) {
+        // This is the additional packet that doesn't fit in the notify packet.
+        this->codec_->decode_extra(param->read.value, param->read.value_len);
+      } else if (param->read.handle == this->char_handle_name_) {
+        // The data should represent the name.
+        if (param->read.status == ESP_GATT_OK && param->read.value_len > 0) {
+          std::string bedjet_name(reinterpret_cast<char const *>(param->read.value), param->read.value_len);
+          // this->set_name(bedjet_name);
+          ESP_LOGV(TAG, "[%s] Got BedJet name: '%s'", this->get_name().c_str(), bedjet_name.c_str());
+        }
+      }
+      break;
+    }
+    case ESP_GATTC_REG_FOR_NOTIFY_EVT: {
+      // This event means that ESP received the request to enable notifications on the client side. But we also have to
+      // tell the server that we want it to send notifications. Normally BLEClient parent would handle this
+      // automatically, but as soon as we set our status to Established, the parent is going to purge all the
+      // service/char/descriptor handles, and then get_config_descriptor() won't work anymore. There's no way to disable
+      // the BLEClient parent behavior, so our only option is to write the handle anyway, and hope a double-write
+      // doesn't break anything.
+
+      if (param->reg_for_notify.handle != this->char_handle_status_) {
+        ESP_LOGW(TAG, "[%s] Register for notify on unexpected handle 0x%04x, expecting 0x%04x",
+                 this->get_name().c_str(), param->reg_for_notify.handle, this->char_handle_status_);
+        break;
+      }
+
+      this->write_notify_config_descriptor_(true);
+      this->last_notify_ = 0;
+      this->force_refresh_ = true;
+      break;
+    }
+    case ESP_GATTC_UNREG_FOR_NOTIFY_EVT: {
+      // This event is not handled by the parent BLEClient, so we need to do this either way.
+      if (param->unreg_for_notify.handle != this->char_handle_status_) {
+        ESP_LOGW(TAG, "[%s] Unregister for notify on unexpected handle 0x%04x, expecting 0x%04x",
+                 this->get_name().c_str(), param->unreg_for_notify.handle, this->char_handle_status_);
+        break;
+      }
+
+      this->write_notify_config_descriptor_(false);
+      this->last_notify_ = 0;
+      // Now we wait until the next update() poll to re-register notify...
+      break;
+    }
+    case ESP_GATTC_NOTIFY_EVT: {
+      if (param->notify.handle != this->char_handle_status_) {
+        ESP_LOGW(TAG, "[%s] Unexpected notify handle, wanted %04X, got %04X", this->get_name().c_str(),
+                 this->char_handle_status_, param->notify.handle);
+        break;
+      }
+
+      // FIXME: notify events come in every ~200-300 ms, which is too fast to be helpful. So we
+      //  throttle the updates to once every MIN_NOTIFY_THROTTLE (5 seconds).
+      //  Another idea would be to keep notify off by default, and use update() as an opportunity to turn on
+      //  notify to get enough data to update status, then turn off notify again.
+
+      uint32_t now = millis();
+      auto delta = now - this->last_notify_;
+
+      if (this->last_notify_ == 0 || delta > MIN_NOTIFY_THROTTLE || this->force_refresh_) {
+        bool needs_extra = this->codec_->decode_notify(param->notify.value, param->notify.value_len);
+        this->last_notify_ = now;
+
+        if (needs_extra) {
+          // this means the packet was partial, so read the status characteristic to get the second part.
+          auto status = esp_ble_gattc_read_char(this->parent_->gattc_if, this->parent_->conn_id,
+                                                this->char_handle_status_, ESP_GATT_AUTH_REQ_NONE);
+          if (status) {
+            ESP_LOGI(TAG, "[%s] Unable to read extended status packet", this->get_name().c_str());
+          }
+        }
+
+        if (this->force_refresh_) {
+          // If we requested an immediate update, do that now.
+          this->update();
+          this->force_refresh_ = false;
+        }
+      }
+      break;
+    }
+    default:
+      ESP_LOGVV(TAG, "[%s] gattc unhandled event: enum=%d", this->get_name().c_str(), event);
+      break;
+  }
+}
+
+/** Reimplementation of BLEClient.gattc_event_handler() for ESP_GATTC_REG_FOR_NOTIFY_EVT.
+ *
+ * This is a copy of ble_client's automatic handling of `ESP_GATTC_REG_FOR_NOTIFY_EVT`, in order
+ * to undo the same on unregister. It also allows us to maintain the config descriptor separately,
+ * since the parent BLEClient is going to purge all descriptors once we set our connection status
+ * to `Established`.
+ */
+uint8_t Bedjet::write_notify_config_descriptor_(bool enable) {
+  auto handle = this->config_descr_status_;
+  if (handle == 0) {
+    ESP_LOGW(TAG, "No descriptor found for notify of handle 0x%x", this->char_handle_status_);
+    return -1;
+  }
+
+  // NOTE: BLEClient uses `uint8_t*` of length 1, but BLE spec requires 16 bits.
+  uint8_t notify_en[] = {0, 0};
+  notify_en[0] = enable;
+  auto status =
+      esp_ble_gattc_write_char_descr(this->parent_->gattc_if, this->parent_->conn_id, handle, sizeof(notify_en),
+                                     &notify_en[0], ESP_GATT_WRITE_TYPE_RSP, ESP_GATT_AUTH_REQ_NONE);
+  if (status) {
+    ESP_LOGW(TAG, "esp_ble_gattc_write_char_descr error, status=%d", status);
+    return status;
+  }
+  ESP_LOGD(TAG, "[%s] wrote notify=%s to status config 0x%04x", this->get_name().c_str(), enable ? "true" : "false",
+           handle);
+  return ESP_GATT_OK;
+}
+
+#ifdef USE_TIME
+/** Attempts to sync the local time (via `time_id`) to the BedJet device. */
+void Bedjet::send_local_time_() {
+  if (this->node_state != espbt::ClientState::ESTABLISHED) {
+    ESP_LOGV(TAG, "[%s] Not connected, cannot send time.", this->get_name().c_str());
+    return;
+  }
+  auto *time_id = *this->time_id_;
+  time::ESPTime now = time_id->now();
+  if (now.is_valid()) {
+    uint8_t hour = now.hour;
+    uint8_t minute = now.minute;
+    BedjetPacket *pkt = this->codec_->get_set_time_request(hour, minute);
+    auto status = this->write_bedjet_packet_(pkt);
+    if (status) {
+      ESP_LOGW(TAG, "Failed setting BedJet clock: %d", status);
+    } else {
+      ESP_LOGD(TAG, "[%s] BedJet clock set to: %d:%02d", this->get_name().c_str(), hour, minute);
+    }
+  }
+}
+
+/** Initializes time sync callbacks to support syncing current time to the BedJet. */
+void Bedjet::setup_time_() {
+  if (this->time_id_.has_value()) {
+    this->send_local_time_();
+    auto *time_id = *this->time_id_;
+    time_id->add_on_time_sync_callback([this] { this->send_local_time_(); });
+    time::ESPTime now = time_id->now();
+    ESP_LOGD(TAG, "Using time component to set BedJet clock: %d:%02d", now.hour, now.minute);
+  } else {
+    ESP_LOGI(TAG, "`time_id` is not configured: will not sync BedJet clock.");
+  }
+}
+#endif
+
+/** Writes one BedjetPacket to the BLE client on the BEDJET_COMMAND_UUID. */
+uint8_t Bedjet::write_bedjet_packet_(BedjetPacket *pkt) {
+  if (this->node_state != espbt::ClientState::ESTABLISHED) {
+    if (!this->parent_->enabled) {
+      ESP_LOGI(TAG, "[%s] Cannot write packet: Not connected, enabled=false", this->get_name().c_str());
+    } else {
+      ESP_LOGW(TAG, "[%s] Cannot write packet: Not connected", this->get_name().c_str());
+    }
+    return -1;
+  }
+  auto status = esp_ble_gattc_write_char(this->parent_->gattc_if, this->parent_->conn_id, this->char_handle_cmd_,
+                                         pkt->data_length + 1, (uint8_t *) &pkt->command, ESP_GATT_WRITE_TYPE_NO_RSP,
+                                         ESP_GATT_AUTH_REQ_NONE);
+  return status;
+}
+
+/** Configures the local ESP BLE client to register (`true`) or unregister (`false`) for status notifications. */
+uint8_t Bedjet::set_notify_(const bool enable) {
+  uint8_t status;
+  if (enable) {
+    status = esp_ble_gattc_register_for_notify(this->parent_->gattc_if, this->parent_->remote_bda,
+                                               this->char_handle_status_);
+    if (status) {
+      ESP_LOGW(TAG, "[%s] esp_ble_gattc_register_for_notify failed, status=%d", this->get_name().c_str(), status);
+    }
+  } else {
+    status = esp_ble_gattc_unregister_for_notify(this->parent_->gattc_if, this->parent_->remote_bda,
+                                                 this->char_handle_status_);
+    if (status) {
+      ESP_LOGW(TAG, "[%s] esp_ble_gattc_unregister_for_notify failed, status=%d", this->get_name().c_str(), status);
+    }
+  }
+  ESP_LOGV(TAG, "[%s] set_notify: enable=%d; result=%d", this->get_name().c_str(), enable, status);
+  return status;
+}
+
+/** Attempts to update the climate device from the last received BedjetStatusPacket.
+ *
+ * @return `true` if the status has been applied; `false` if there is nothing to apply.
+ */
+bool Bedjet::update_status_() {
+  if (!this->codec_->has_status())
+    return false;
+
+  BedjetStatusPacket status = *this->codec_->get_status_packet();
+
+  auto converted_temp = bedjet_temp_to_c(status.target_temp_step);
+  if (converted_temp > 0)
+    this->target_temperature = converted_temp;
+  converted_temp = bedjet_temp_to_c(status.ambient_temp_step);
+  if (converted_temp > 0)
+    this->current_temperature = converted_temp;
+
+  const auto *fan_mode_name = bedjet_fan_step_to_fan_mode(status.fan_step);
+  if (fan_mode_name != nullptr) {
+    this->custom_fan_mode = *fan_mode_name;
+  }
+
+  // TODO: Get biorhythm data to determine which preset (M1-3) is running, if any.
+  switch (status.mode) {
+    case MODE_WAIT:  // Biorhythm "wait" step: device is idle
+    case MODE_STANDBY:
+      this->mode = climate::CLIMATE_MODE_OFF;
+      this->action = climate::CLIMATE_ACTION_IDLE;
+      this->fan_mode = climate::CLIMATE_FAN_OFF;
+      this->custom_preset.reset();
+      this->preset.reset();
+      break;
+
+    case MODE_HEAT:
+    case MODE_EXTHT:
+      this->mode = climate::CLIMATE_MODE_HEAT;
+      this->action = climate::CLIMATE_ACTION_HEATING;
+      this->custom_preset.reset();
+      this->preset.reset();
+      break;
+
+    case MODE_COOL:
+      this->mode = climate::CLIMATE_MODE_FAN_ONLY;
+      this->action = climate::CLIMATE_ACTION_COOLING;
+      this->custom_preset.reset();
+      this->preset.reset();
+      break;
+
+    case MODE_DRY:
+      this->mode = climate::CLIMATE_MODE_DRY;
+      this->action = climate::CLIMATE_ACTION_DRYING;
+      this->custom_preset.reset();
+      this->preset.reset();
+      break;
+
+    case MODE_TURBO:
+      this->preset = climate::CLIMATE_PRESET_BOOST;
+      this->custom_preset.reset();
+      this->mode = climate::CLIMATE_MODE_HEAT;
+      this->action = climate::CLIMATE_ACTION_HEATING;
+      break;
+
+    default:
+      ESP_LOGW(TAG, "[%s] Unexpected mode: 0x%02X", this->get_name().c_str(), status.mode);
+      break;
+  }
+
+  if (this->is_valid_()) {
+    this->publish_state();
+    this->codec_->clear_status();
+    this->status_clear_warning();
+  }
+
+  return true;
+}
+
+void Bedjet::update() {
+  ESP_LOGV(TAG, "[%s] update()", this->get_name().c_str());
+
+  if (this->node_state != espbt::ClientState::ESTABLISHED) {
+    if (!this->parent()->enabled) {
+      ESP_LOGD(TAG, "[%s] Not connected, because enabled=false", this->get_name().c_str());
+    } else {
+      // Possibly still trying to connect.
+      ESP_LOGD(TAG, "[%s] Not connected, enabled=true", this->get_name().c_str());
+    }
+
+    return;
+  }
+
+  auto result = this->update_status_();
+  if (!result) {
+    uint32_t now = millis();
+    uint32_t diff = now - this->last_notify_;
+
+    if (this->last_notify_ == 0) {
+      // This means we're connected and haven't received a notification, so it likely means that the BedJet is off.
+      // However, it could also mean that it's running, but failing to send notifications.
+      // We can try to unregister for notifications now, and then re-register, hoping to clear it up...
+      // But how do we know for sure which state we're in, and how do we actually clear out the buggy state?
+
+      ESP_LOGI(TAG, "[%s] Still waiting for first GATT notify event.", this->get_name().c_str());
+      this->set_notify_(false);
+    } else if (diff > NOTIFY_WARN_THRESHOLD) {
+      ESP_LOGW(TAG, "[%s] Last GATT notify was %d seconds ago.", this->get_name().c_str(), diff / 1000);
+    }
+
+    if (this->timeout_ > 0 && diff > this->timeout_ && this->parent()->enabled) {
+      ESP_LOGW(TAG, "[%s] Timed out after %d sec. Retrying...", this->get_name().c_str(), this->timeout_);
+      this->parent()->set_enabled(false);
+      this->parent()->set_enabled(true);
+    }
+  }
+}
+
+}  // namespace bedjet
+}  // namespace esphome
+
+#endif

esphome/components/bedjet/bedjet.h

@@ -0,0 +1,123 @@
+#pragma once
+
+#include "esphome/components/ble_client/ble_client.h"
+#include "esphome/components/esp32_ble_tracker/esp32_ble_tracker.h"
+#include "esphome/components/climate/climate.h"
+#include "esphome/core/component.h"
+#include "esphome/core/hal.h"
+#include "bedjet_base.h"
+
+#ifdef USE_TIME
+#include "esphome/components/time/real_time_clock.h"
+#endif
+
+#ifdef USE_ESP32
+
+#include <esp_gattc_api.h>
+
+namespace esphome {
+namespace bedjet {
+
+namespace espbt = esphome::esp32_ble_tracker;
+
+static const espbt::ESPBTUUID BEDJET_SERVICE_UUID = espbt::ESPBTUUID::from_raw("00001000-bed0-0080-aa55-4265644a6574");
+static const espbt::ESPBTUUID BEDJET_STATUS_UUID = espbt::ESPBTUUID::from_raw("00002000-bed0-0080-aa55-4265644a6574");
+static const espbt::ESPBTUUID BEDJET_COMMAND_UUID = espbt::ESPBTUUID::from_raw("00002004-bed0-0080-aa55-4265644a6574");
+static const espbt::ESPBTUUID BEDJET_NAME_UUID = espbt::ESPBTUUID::from_raw("00002001-bed0-0080-aa55-4265644a6574");
+
+class Bedjet : public climate::Climate, public esphome::ble_client::BLEClientNode, public PollingComponent {
+ public:
+  void setup() override;
+  void loop() override;
+  void update() override;
+  void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
+                           esp_ble_gattc_cb_param_t *param) override;
+  void dump_config() override;
+  float get_setup_priority() const override { return setup_priority::AFTER_WIFI; }
+
+#ifdef USE_TIME
+  void set_time_id(time::RealTimeClock *time_id) { this->time_id_ = time_id; }
+#endif
+  void set_status_timeout(uint32_t timeout) { this->timeout_ = timeout; }
+
+  /** Attempts to check for and apply firmware updates. */
+  void upgrade_firmware();
+
+  climate::ClimateTraits traits() override {
+    auto traits = climate::ClimateTraits();
+    traits.set_supports_action(true);
+    traits.set_supports_current_temperature(true);
+    traits.set_supported_modes({
+        climate::CLIMATE_MODE_OFF,
+        climate::CLIMATE_MODE_HEAT,
+        // climate::CLIMATE_MODE_TURBO // Not supported by Climate: see presets instead
+        climate::CLIMATE_MODE_FAN_ONLY,
+        climate::CLIMATE_MODE_DRY,
+    });
+
+    // It would be better if we had a slider for the fan modes.
+    traits.set_supported_custom_fan_modes(BEDJET_FAN_STEP_NAMES_SET);
+    traits.set_supported_presets({
+        // If we support NONE, then have to decide what happens if the user switches to it (turn off?)
+        // climate::CLIMATE_PRESET_NONE,
+        // Climate doesn't have a "TURBO" mode, but we can use the BOOST preset instead.
+        climate::CLIMATE_PRESET_BOOST,
+    });
+    traits.set_supported_custom_presets({
+        // We could fetch biodata from bedjet and set these names that way.
+        // But then we have to invert the lookup in order to send the right preset.
+        // For now, we can leave them as M1-3 to match the remote buttons.
+        // EXT HT added to match remote button.
+        "EXT HT",
+        "M1",
+        "M2",
+        "M3",
+    });
+    traits.set_visual_min_temperature(19.0);
+    traits.set_visual_max_temperature(43.0);
+    traits.set_visual_temperature_step(1.0);
+    return traits;
+  }
+
+ protected:
+  void control(const climate::ClimateCall &call) override;
+
+#ifdef USE_TIME
+  void setup_time_();
+  void send_local_time_();
+  optional<time::RealTimeClock *> time_id_{};
+#endif
+
+  uint32_t timeout_{DEFAULT_STATUS_TIMEOUT};
+
+  static const uint32_t MIN_NOTIFY_THROTTLE = 5000;
+  static const uint32_t NOTIFY_WARN_THRESHOLD = 300000;
+  static const uint32_t DEFAULT_STATUS_TIMEOUT = 900000;
+
+  uint8_t set_notify_(bool enable);
+  uint8_t write_bedjet_packet_(BedjetPacket *pkt);
+  void reset_state_();
+  bool update_status_();
+
+  bool is_valid_() {
+    // FIXME: find a better way to check this?
+    return !std::isnan(this->current_temperature) && !std::isnan(this->target_temperature) &&
+           this->current_temperature > 1 && this->target_temperature > 1;
+  }
+
+  uint32_t last_notify_ = 0;
+  bool force_refresh_ = false;
+
+  std::unique_ptr<BedjetCodec> codec_;
+  uint16_t char_handle_cmd_;
+  uint16_t char_handle_name_;
+  uint16_t char_handle_status_;
+  uint16_t config_descr_status_;
+
+  uint8_t write_notify_config_descriptor_(bool enable);
+};
+
+}  // namespace bedjet
+}  // namespace esphome
+
+#endif

esphome/components/bedjet/bedjet_base.cpp

@@ -0,0 +1,123 @@
+#include "bedjet_base.h"
+#include <cstdio>
+#include <cstring>
+
+namespace esphome {
+namespace bedjet {
+
+/// Converts a BedJet temp step into degrees Fahrenheit.
+float bedjet_temp_to_f(const uint8_t temp) {
+  // BedJet temp is "C*2"; to get F, multiply by 0.9 (half 1.8) and add 32.
+  return 0.9f * temp + 32.0f;
+}
+
+/** Cleans up the packet before sending. */
+BedjetPacket *BedjetCodec::clean_packet_() {
+  // So far no commands require more than 2 bytes of data.
+  assert(this->packet_.data_length <= 2);
+  for (int i = this->packet_.data_length; i < 2; i++) {
+    this->packet_.data[i] = '\0';
+  }
+  ESP_LOGV(TAG, "Created packet: %02X, %02X %02X", this->packet_.command, this->packet_.data[0], this->packet_.data[1]);
+  return &this->packet_;
+}
+
+/** Returns a BedjetPacket that will initiate a BedjetButton press. */
+BedjetPacket *BedjetCodec::get_button_request(BedjetButton button) {
+  this->packet_.command = CMD_BUTTON;
+  this->packet_.data_length = 1;
+  this->packet_.data[0] = button;
+  return this->clean_packet_();
+}
+
+/** Returns a BedjetPacket that will set the device's target `temperature`. */
+BedjetPacket *BedjetCodec::get_set_target_temp_request(float temperature) {
+  this->packet_.command = CMD_SET_TEMP;
+  this->packet_.data_length = 1;
+  this->packet_.data[0] = temperature * 2;
+  return this->clean_packet_();
+}
+
+/** Returns a BedjetPacket that will set the device's target fan speed. */
+BedjetPacket *BedjetCodec::get_set_fan_speed_request(const uint8_t fan_step) {
+  this->packet_.command = CMD_SET_FAN;
+  this->packet_.data_length = 1;
+  this->packet_.data[0] = fan_step;
+  return this->clean_packet_();
+}
+
+/** Returns a BedjetPacket that will set the device's current time. */
+BedjetPacket *BedjetCodec::get_set_time_request(const uint8_t hour, const uint8_t minute) {
+  this->packet_.command = CMD_SET_TIME;
+  this->packet_.data_length = 2;
+  this->packet_.data[0] = hour;
+  this->packet_.data[1] = minute;
+  return this->clean_packet_();
+}
+
+/** Decodes the extra bytes that were received after being notified with a partial packet. */
+void BedjetCodec::decode_extra(const uint8_t *data, uint16_t length) {
+  ESP_LOGV(TAG, "Received extra: %d bytes: %d %d %d %d", length, data[1], data[2], data[3], data[4]);
+  uint8_t offset = this->last_buffer_size_;
+  if (offset > 0 && length + offset <= sizeof(BedjetStatusPacket)) {
+    memcpy(((uint8_t *) (&this->buf_)) + offset, data, length);
+    ESP_LOGV(TAG,
+             "Extra bytes: skip1=0x%08x, skip2=0x%04x, skip3=0x%02x; update phase=0x%02x, "
+             "flags=BedjetFlags <conn=%c, leds=%c, units=%c, mute=%c, others=%02x>",
+             this->buf_._skip_1_, this->buf_._skip_2_, this->buf_._skip_3_, this->buf_.update_phase,
+             this->buf_.flags & 0x20 ? '1' : '0', this->buf_.flags & 0x10 ? '1' : '0',
+             this->buf_.flags & 0x04 ? '1' : '0', this->buf_.flags & 0x01 ? '1' : '0',
+             this->buf_.flags & ~(0x20 | 0x10 | 0x04 | 0x01));
+  } else {
+    ESP_LOGI(TAG, "Could not determine where to append to, last offset=%d, max size=%u, new size would be %d", offset,
+             sizeof(BedjetStatusPacket), length + offset);
+  }
+}
+
+/** Decodes the incoming status packet received on the BEDJET_STATUS_UUID.
+ *
+ * @return `true` if the packet was decoded and represents a "partial" packet; `false` otherwise.
+ */
+bool BedjetCodec::decode_notify(const uint8_t *data, uint16_t length) {
+  ESP_LOGV(TAG, "Received: %d bytes: %d %d %d %d", length, data[1], data[2], data[3], data[4]);
+
+  if (data[1] == PACKET_FORMAT_V3_HOME && data[3] == PACKET_TYPE_STATUS) {
+    this->status_packet_.reset();
+
+    // Clear old buffer
+    memset(&this->buf_, 0, sizeof(BedjetStatusPacket));
+    // Copy new data into buffer
+    memcpy(&this->buf_, data, length);
+    this->last_buffer_size_ = length;
+
+    // TODO: validate the packet checksum?
+    if (this->buf_.mode >= 0 && this->buf_.mode < 7 && this->buf_.target_temp_step >= 38 &&
+        this->buf_.target_temp_step <= 86 && this->buf_.actual_temp_step > 1 && this->buf_.actual_temp_step <= 100 &&
+        this->buf_.ambient_temp_step > 1 && this->buf_.ambient_temp_step <= 100) {
+      // and save it for the update() loop
+      this->status_packet_ = this->buf_;
+      return this->buf_.is_partial == 1;
+    } else {
+      // TODO: log a warning if we detect that we connected to a non-V3 device.
+      ESP_LOGW(TAG, "Received potentially invalid packet (len %d):", length);
+    }
+  } else if (data[1] == PACKET_FORMAT_DEBUG || data[3] == PACKET_TYPE_DEBUG) {
+    // We don't actually know the packet format for this. Dump packets to log, in case a pattern presents itself.
+    ESP_LOGV(TAG,
+             "received DEBUG packet: set1=%01fF, set2=%01fF, air=%01fF;  [7]=%d, [8]=%d, [9]=%d, [10]=%d, [11]=%d, "
+             "[12]=%d, [-1]=%d",
+             bedjet_temp_to_f(data[4]), bedjet_temp_to_f(data[5]), bedjet_temp_to_f(data[6]), data[7], data[8], data[9],
+             data[10], data[11], data[12], data[length - 1]);
+
+    if (this->has_status()) {
+      this->status_packet_->ambient_temp_step = data[6];
+    }
+  } else {
+    // TODO: log a warning if we detect that we connected to a non-V3 device.
+  }
+
+  return false;
+}
+
+}  // namespace bedjet
+}  // namespace esphome

esphome/components/bedjet/bedjet_base.h

@@ -0,0 +1,159 @@
+#pragma once
+
+#include "esphome/core/helpers.h"
+#include "esphome/core/log.h"
+
+#include "bedjet_const.h"
+
+namespace esphome {
+namespace bedjet {
+
+struct BedjetPacket {
+  uint8_t data_length;
+  BedjetCommand command;
+  uint8_t data[2];
+};
+
+struct BedjetFlags {
+  /* uint8_t */
+  int a_ : 1;                // 0x80
+  int b_ : 1;                // 0x40
+  int conn_test_passed : 1;  ///< (0x20) Bit is set `1` if the last connection test passed.
+  int leds_enabled : 1;      ///< (0x10) Bit is set `1` if the LEDs on the device are enabled.
+  int c_ : 1;                // 0x08
+  int units_setup : 1;       ///< (0x04) Bit is set `1` if the device's units have been configured.
+  int d_ : 1;                // 0x02
+  int beeps_muted : 1;       ///< (0x01) Bit is set `1` if the device's sound output is muted.
+} __attribute__((packed));
+
+enum BedjetPacketFormat : uint8_t {
+  PACKET_FORMAT_DEBUG = 0x05,    //  5
+  PACKET_FORMAT_V3_HOME = 0x56,  // 86
+};
+
+enum BedjetPacketType : uint8_t {
+  PACKET_TYPE_STATUS = 0x1,
+  PACKET_TYPE_DEBUG = 0x2,
+};
+
+/** The format of a BedJet V3 status packet. */
+struct BedjetStatusPacket {
+  // [0]
+  uint8_t is_partial : 8;  ///< `1` indicates that this is a partial packet, and more data can be read directly from the
+                           ///< characteristic.
+  BedjetPacketFormat packet_format : 8;  ///< BedjetPacketFormat::PACKET_FORMAT_V3_HOME for BedJet V3 status packet
+                                         ///< format. BedjetPacketFormat::PACKET_FORMAT_DEBUG for debugging packets.
+  uint8_t
+      expecting_length : 8;  ///< The expected total length of the status packet after merging the additional packet.
+  BedjetPacketType packet_type : 8;  ///< Typically BedjetPacketType::PACKET_TYPE_STATUS for BedJet V3 status packet.
+
+  // [4]
+  uint8_t time_remaining_hrs : 8;   ///< Hours remaining in program runtime
+  uint8_t time_remaining_mins : 8;  ///< Minutes remaining in program runtime
+  uint8_t time_remaining_secs : 8;  ///< Seconds remaining in program runtime
+
+  // [7]
+  uint8_t actual_temp_step : 8;  ///< Actual temp of the air blown by the BedJet fan; value represents `2 *
+                                 ///< degrees_celsius`. See #bedjet_temp_to_c and #bedjet_temp_to_f
+  uint8_t target_temp_step : 8;  ///< Target temp that the BedJet will try to heat to. See #actual_temp_step.
+
+  // [9]
+  BedjetMode mode : 8;  ///< BedJet operating mode.
+
+  // [10]
+  uint8_t fan_step : 8;  ///< BedJet fan speed; value is in the 0-19 range, representing 5% increments (5%-100%): `5 + 5
+                         ///< * fan_step`
+  uint8_t max_hrs : 8;   ///< Max hours of mode runtime
+  uint8_t max_mins : 8;  ///< Max minutes of mode runtime
+  uint8_t min_temp_step : 8;  ///< Min temp allowed in mode. See #actual_temp_step.
+  uint8_t max_temp_step : 8;  ///< Max temp allowed in mode. See #actual_temp_step.
+
+  // [15-16]
+  uint16_t turbo_time : 16;  ///< Time remaining in BedjetMode::MODE_TURBO.
+
+  // [17]
+  uint8_t ambient_temp_step : 8;  ///< Current ambient air temp. This is the coldest air the BedJet can blow. See
+                                  ///< #actual_temp_step.
+  uint8_t shutdown_reason : 8;    ///< The reason for the last device shutdown.
+
+  // [19-25]; the initial partial packet cuts off here after [19]
+  // Skip 7 bytes?
+  uint32_t _skip_1_ : 32;  // Unknown 19-22 = 0x01810112
+
+  uint16_t _skip_2_ : 16;  // Unknown 23-24 = 0x1310
+  uint8_t _skip_3_ : 8;    // Unknown 25 = 0x00
+
+  // [26]
+  //   0x18(24) = "Connection test has completed OK"
+  //   0x1a(26) = "Firmware update is not needed"
+  uint8_t update_phase : 8;  ///< The current status/phase of a firmware update.
+
+  // [27]
+  // FIXME: cannot nest packed struct of matching length here?
+  /* BedjetFlags */ uint8_t flags : 8;  /// See BedjetFlags for the packed byte flags.
+  // [28-31]; 20+11 bytes
+  uint32_t _skip_4_ : 32;  // Unknown
+
+} __attribute__((packed));
+
+/** This class is responsible for encoding command packets and decoding status packets.
+ *
+ * Status Packets
+ * ==============
+ * The BedJet protocol depends on registering for notifications on the esphome::BedJet::BEDJET_SERVICE_UUID
+ * characteristic. If the BedJet is on, it will send rapid updates as notifications. If it is off,
+ * it generally will not notify of any status.
+ *
+ * As the BedJet V3's BedjetStatusPacket exceeds the buffer size allowed for BLE notification packets,
+ * the notification packet will contain `BedjetStatusPacket::is_partial == 1`. When that happens, an additional
+ * read of the esphome::BedJet::BEDJET_SERVICE_UUID characteristic will contain the second portion of the
+ * full status packet.
+ *
+ * Command Packets
+ * ===============
+ * This class supports encoding a number of BedjetPacket commands:
+ * - Button press
+ *   This simulates a press of one of the BedjetButton values.
+ *   - BedjetPacket#command = BedjetCommand::CMD_BUTTON
+ *   - BedjetPacket#data [0] contains the BedjetButton value
+ * - Set target temp
+ *   This sets the BedJet's target temp to a concrete temperature value.
+ *   - BedjetPacket#command = BedjetCommand::CMD_SET_TEMP
+ *   - BedjetPacket#data [0] contains the BedJet temp value; see BedjetStatusPacket#actual_temp_step
+ * - Set fan speed
+ *   This sets the BedJet fan speed.
+ *   - BedjetPacket#command = BedjetCommand::CMD_SET_FAN
+ *   - BedjetPacket#data [0] contains the BedJet fan step in the range 0-19.
+ * - Set current time
+ *   The BedJet needs to have its clock set properly in order to run the biorhythm programs, which might
+ *   contain time-of-day based step rules.
+ *   - BedjetPacket#command = BedjetCommand::CMD_SET_TIME
+ *   - BedjetPacket#data [0] is hours, [1] is minutes
+ */
+class BedjetCodec {
+ public:
+  BedjetPacket *get_button_request(BedjetButton button);
+  BedjetPacket *get_set_target_temp_request(float temperature);
+  BedjetPacket *get_set_fan_speed_request(uint8_t fan_step);
+  BedjetPacket *get_set_time_request(uint8_t hour, uint8_t minute);
+
+  bool decode_notify(const uint8_t *data, uint16_t length);
+  void decode_extra(const uint8_t *data, uint16_t length);
+
+  inline bool has_status() { return this->status_packet_.has_value(); }
+  const optional<BedjetStatusPacket> &get_status_packet() const { return this->status_packet_; }
+  void clear_status() { this->status_packet_.reset(); }
+
+ protected:
+  BedjetPacket *clean_packet_();
+
+  uint8_t last_buffer_size_ = 0;
+
+  BedjetPacket packet_;
+
+  optional<BedjetStatusPacket> status_packet_;
+  BedjetStatusPacket buf_;
+};
+
+}  // namespace bedjet
+}  // namespace esphome

esphome/components/bedjet/bedjet_const.h

@@ -0,0 +1,78 @@
+#pragma once
+
+#include <set>
+
+namespace esphome {
+namespace bedjet {
+
+static const char *const TAG = "bedjet";
+
+enum BedjetMode : uint8_t {
+  /// BedJet is Off
+  MODE_STANDBY = 0,
+  /// BedJet is in Heat mode (limited to 4 hours)
+  MODE_HEAT = 1,
+  /// BedJet is in Turbo mode (high heat, limited time)
+  MODE_TURBO = 2,
+  /// BedJet is in Extended Heat mode (limited to 10 hours)
+  MODE_EXTHT = 3,
+  /// BedJet is in Cool mode (actually "Fan only" mode)
+  MODE_COOL = 4,
+  /// BedJet is in Dry mode (high speed, no heat)
+  MODE_DRY = 5,
+  /// BedJet is in "wait" mode, a step during a biorhythm program
+  MODE_WAIT = 6,
+};
+
+enum BedjetButton : uint8_t {
+  /// Turn BedJet off
+  BTN_OFF = 0x1,
+  /// Enter Cool mode (fan only)
+  BTN_COOL = 0x2,
+  /// Enter Heat mode (limited to 4 hours)
+  BTN_HEAT = 0x3,
+  /// Enter Turbo mode (high heat, limited to 10 minutes)
+  BTN_TURBO = 0x4,
+  /// Enter Dry mode (high speed, no heat)
+  BTN_DRY = 0x5,
+  /// Enter Extended Heat mode (limited to 10 hours)
+  BTN_EXTHT = 0x6,
+
+  /// Start the M1 biorhythm/preset program
+  BTN_M1 = 0x20,
+  /// Start the M2 biorhythm/preset program
+  BTN_M2 = 0x21,
+  /// Start the M3 biorhythm/preset program
+  BTN_M3 = 0x22,
+
+  /* These are "MAGIC" buttons */
+
+  /// Turn debug mode on/off
+  MAGIC_DEBUG_ON = 0x40,
+  MAGIC_DEBUG_OFF = 0x41,
+  /// Perform a connection test.
+  MAGIC_CONNTEST = 0x42,
+  /// Request a firmware update. This will also restart the Bedjet.
+  MAGIC_UPDATE = 0x43,
+};
+
+enum BedjetCommand : uint8_t {
+  CMD_BUTTON = 0x1,
+  CMD_SET_TEMP = 0x3,
+  CMD_STATUS = 0x6,
+  CMD_SET_FAN = 0x7,
+  CMD_SET_TIME = 0x8,
+};
+
+#define BEDJET_FAN_STEP_NAMES_ \
+  { \
+    "  5%", " 10%", " 15%", " 20%", " 25%", " 30%", " 35%", " 40%", " 45%", " 50%", " 55%", " 60%", " 65%", " 70%", \
+        " 75%", " 80%", " 85%", " 90%", " 95%", "100%" \
+  }
+
+static const char *const BEDJET_FAN_STEP_NAMES[20] = BEDJET_FAN_STEP_NAMES_;
+static const std::string BEDJET_FAN_STEP_NAME_STRINGS[20] = BEDJET_FAN_STEP_NAMES_;
+static const std::set<std::string> BEDJET_FAN_STEP_NAMES_SET BEDJET_FAN_STEP_NAMES_;
+
+}  // namespace bedjet
+}  // namespace esphome

esphome/components/bedjet/climate.py

@@ -0,0 +1,42 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import climate, ble_client, time
+from esphome.const import (
+    CONF_ID,
+    CONF_RECEIVE_TIMEOUT,
+    CONF_TIME_ID,
+)
+
+CODEOWNERS = ["@jhansche"]
+DEPENDENCIES = ["ble_client"]
+
+bedjet_ns = cg.esphome_ns.namespace("bedjet")
+Bedjet = bedjet_ns.class_(
+    "Bedjet", climate.Climate, ble_client.BLEClientNode, cg.PollingComponent
+)
+
+CONFIG_SCHEMA = (
+    climate.CLIMATE_SCHEMA.extend(
+        {
+            cv.GenerateID(): cv.declare_id(Bedjet),
+            cv.Optional(CONF_TIME_ID): cv.use_id(time.RealTimeClock),
+            cv.Optional(
+                CONF_RECEIVE_TIMEOUT, default="0s"
+            ): cv.positive_time_period_milliseconds,
+        }
+    )
+    .extend(ble_client.BLE_CLIENT_SCHEMA)
+    .extend(cv.polling_component_schema("30s"))
+)
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await cg.register_component(var, config)
+    await climate.register_climate(var, config)
+    await ble_client.register_ble_node(var, config)
+    if CONF_TIME_ID in config:
+        time_ = await cg.get_variable(config[CONF_TIME_ID])
+        cg.add(var.set_time_id(time_))
+    if CONF_RECEIVE_TIMEOUT in config:
+        cg.add(var.set_status_timeout(config[CONF_RECEIVE_TIMEOUT]))

esphome/components/bl0939/__init__.py

@@ -0,0 +1 @@
+CODEOWNERS = ["@ziceva"]

esphome/components/bl0939/bl0939.cpp

@@ -0,0 +1,144 @@
+#include "bl0939.h"
+#include "esphome/core/log.h"
+
+namespace esphome {
+namespace bl0939 {
+
+static const char *const TAG = "bl0939";
+
+// https://www.belling.com.cn/media/file_object/bel_product/BL0939/datasheet/BL0939_V1.2_cn.pdf
+// (unfortunatelly chinese, but the protocol can be understood with some translation tool)
+static const uint8_t BL0939_READ_COMMAND = 0x55;  // 0x5{A4,A3,A2,A1}
+static const uint8_t BL0939_FULL_PACKET = 0xAA;
+static const uint8_t BL0939_PACKET_HEADER = 0x55;
+
+static const uint8_t BL0939_WRITE_COMMAND = 0xA5;  // 0xA{A4,A3,A2,A1}
+static const uint8_t BL0939_REG_IA_FAST_RMS_CTRL = 0x10;
+static const uint8_t BL0939_REG_IB_FAST_RMS_CTRL = 0x1E;
+static const uint8_t BL0939_REG_MODE = 0x18;
+static const uint8_t BL0939_REG_SOFT_RESET = 0x19;
+static const uint8_t BL0939_REG_USR_WRPROT = 0x1A;
+static const uint8_t BL0939_REG_TPS_CTRL = 0x1B;
+
+const uint8_t BL0939_INIT[6][6] = {
+    // Reset to default
+    {BL0939_WRITE_COMMAND, BL0939_REG_SOFT_RESET, 0x5A, 0x5A, 0x5A, 0x33},
+    // Enable User Operation Write
+    {BL0939_WRITE_COMMAND, BL0939_REG_USR_WRPROT, 0x55, 0x00, 0x00, 0xEB},
+    // 0x0100 = CF_UNABLE energy pulse, AC_FREQ_SEL 50Hz, RMS_UPDATE_SEL 800mS
+    {BL0939_WRITE_COMMAND, BL0939_REG_MODE, 0x00, 0x10, 0x00, 0x32},
+    // 0x47FF = Over-current and leakage alarm on, Automatic temperature measurement, Interval 100mS
+    {BL0939_WRITE_COMMAND, BL0939_REG_TPS_CTRL, 0xFF, 0x47, 0x00, 0xF9},
+    // 0x181C = Half cycle, Fast RMS threshold 6172
+    {BL0939_WRITE_COMMAND, BL0939_REG_IA_FAST_RMS_CTRL, 0x1C, 0x18, 0x00, 0x16},
+    // 0x181C = Half cycle, Fast RMS threshold 6172
+    {BL0939_WRITE_COMMAND, BL0939_REG_IB_FAST_RMS_CTRL, 0x1C, 0x18, 0x00, 0x08}};
+
+void BL0939::loop() {
+  DataPacket buffer;
+  if (!this->available()) {
+    return;
+  }
+  if (read_array((uint8_t *) &buffer, sizeof(buffer))) {
+    if (validate_checksum(&buffer)) {
+      received_package_(&buffer);
+    }
+  } else {
+    ESP_LOGW(TAG, "Junk on wire. Throwing away partial message");
+    while (read() >= 0)
+      ;
+  }
+}
+
+bool BL0939::validate_checksum(const DataPacket *data) {
+  uint8_t checksum = BL0939_READ_COMMAND;
+  // Whole package but checksum
+  for (uint32_t i = 0; i < sizeof(data->raw) - 1; i++) {
+    checksum += data->raw[i];
+  }
+  checksum ^= 0xFF;
+  if (checksum != data->checksum) {
+    ESP_LOGW(TAG, "BL0939 invalid checksum! 0x%02X != 0x%02X", checksum, data->checksum);
+  }
+  return checksum == data->checksum;
+}
+
+void BL0939::update() {
+  this->flush();
+  this->write_byte(BL0939_READ_COMMAND);
+  this->write_byte(BL0939_FULL_PACKET);
+}
+
+void BL0939::setup() {
+  for (auto *i : BL0939_INIT) {
+    this->write_array(i, 6);
+    delay(1);
+  }
+  this->flush();
+}
+
+void BL0939::received_package_(const DataPacket *data) const {
+  // Bad header
+  if (data->frame_header != BL0939_PACKET_HEADER) {
+    ESP_LOGI("bl0939", "Invalid data. Header mismatch: %d", data->frame_header);
+    return;
+  }
+
+  float v_rms = (float) to_uint32_t(data->v_rms) / voltage_reference_;
+  float ia_rms = (float) to_uint32_t(data->ia_rms) / current_reference_;
+  float ib_rms = (float) to_uint32_t(data->ib_rms) / current_reference_;
+  float a_watt = (float) to_int32_t(data->a_watt) / power_reference_;
+  float b_watt = (float) to_int32_t(data->b_watt) / power_reference_;
+  int32_t cfa_cnt = to_int32_t(data->cfa_cnt);
+  int32_t cfb_cnt = to_int32_t(data->cfb_cnt);
+  float a_energy_consumption = (float) cfa_cnt / energy_reference_;
+  float b_energy_consumption = (float) cfb_cnt / energy_reference_;
+  float total_energy_consumption = a_energy_consumption + b_energy_consumption;
+
+  if (voltage_sensor_ != nullptr) {
+    voltage_sensor_->publish_state(v_rms);
+  }
+  if (current_sensor_1_ != nullptr) {
+    current_sensor_1_->publish_state(ia_rms);
+  }
+  if (current_sensor_2_ != nullptr) {
+    current_sensor_2_->publish_state(ib_rms);
+  }
+  if (power_sensor_1_ != nullptr) {
+    power_sensor_1_->publish_state(a_watt);
+  }
+  if (power_sensor_2_ != nullptr) {
+    power_sensor_2_->publish_state(b_watt);
+  }
+  if (energy_sensor_1_ != nullptr) {
+    energy_sensor_1_->publish_state(a_energy_consumption);
+  }
+  if (energy_sensor_2_ != nullptr) {
+    energy_sensor_2_->publish_state(b_energy_consumption);
+  }
+  if (energy_sensor_sum_ != nullptr) {
+    energy_sensor_sum_->publish_state(total_energy_consumption);
+  }
+
+  ESP_LOGV("bl0939", "BL0939: U %fV, I1 %fA, I2 %fA, P1 %fW, P2 %fW, CntA %d, CntB %d, ∫P1 %fkWh, ∫P2 %fkWh", v_rms,
+           ia_rms, ib_rms, a_watt, b_watt, cfa_cnt, cfb_cnt, a_energy_consumption, b_energy_consumption);
+}
+
+void BL0939::dump_config() {  // NOLINT(readability-function-cognitive-complexity)
+  ESP_LOGCONFIG(TAG, "BL0939:");
+  LOG_SENSOR("", "Voltage", this->voltage_sensor_);
+  LOG_SENSOR("", "Current 1", this->current_sensor_1_);
+  LOG_SENSOR("", "Current 2", this->current_sensor_2_);
+  LOG_SENSOR("", "Power 1", this->power_sensor_1_);
+  LOG_SENSOR("", "Power 2", this->power_sensor_2_);
+  LOG_SENSOR("", "Energy 1", this->energy_sensor_1_);
+  LOG_SENSOR("", "Energy 2", this->energy_sensor_2_);
+  LOG_SENSOR("", "Energy sum", this->energy_sensor_sum_);
+}
+
+uint32_t BL0939::to_uint32_t(ube24_t input) { return input.h << 16 | input.m << 8 | input.l; }
+
+int32_t BL0939::to_int32_t(sbe24_t input) { return input.h << 16 | input.m << 8 | input.l; }
+
+}  // namespace bl0939
+}  // namespace esphome

esphome/components/bl0939/bl0939.h

@@ -0,0 +1,107 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/uart/uart.h"
+#include "esphome/components/sensor/sensor.h"
+
+namespace esphome {
+namespace bl0939 {
+
+// https://datasheet.lcsc.com/lcsc/2108071830_BL-Shanghai-Belling-BL0939_C2841044.pdf
+// (unfortunatelly chinese, but the formulas can be easily understood)
+// Sonoff Dual R3 V2 has the exact same resistor values for the current shunts (RL=1miliOhm)
+// and for the voltage divider (R1=0.51kOhm, R2=5*390kOhm)
+// as in the manufacturer's reference circuit, so the same formulas were used here (Vref=1.218V)
+static const float BL0939_IREF = 324004 * 1 / 1.218;
+static const float BL0939_UREF = 79931 * 0.51 * 1000 / (1.218 * (5 * 390 + 0.51));
+static const float BL0939_PREF = 4046 * 1 * 0.51 * 1000 / (1.218 * 1.218 * (5 * 390 + 0.51));
+static const float BL0939_EREF = 3.6e6 * 4046 * 1 * 0.51 * 1000 / (1638.4 * 256 * 1.218 * 1.218 * (5 * 390 + 0.51));
+
+struct ube24_t {  // NOLINT(readability-identifier-naming,altera-struct-pack-align)
+  uint8_t l;
+  uint8_t m;
+  uint8_t h;
+} __attribute__((packed));
+
+struct ube16_t {  // NOLINT(readability-identifier-naming,altera-struct-pack-align)
+  uint8_t l;
+  uint8_t h;
+} __attribute__((packed));
+
+struct sbe24_t {  // NOLINT(readability-identifier-naming,altera-struct-pack-align)
+  uint8_t l;
+  uint8_t m;
+  int8_t h;
+} __attribute__((packed));
+
+// Caveat: All these values are big endian (low - middle - high)
+
+union DataPacket {  // NOLINT(altera-struct-pack-align)
+  uint8_t raw[35];
+  struct {
+    uint8_t frame_header;  // 0x55 according to docs
+    ube24_t ia_fast_rms;
+    ube24_t ia_rms;
+    ube24_t ib_rms;
+    ube24_t v_rms;
+    ube24_t ib_fast_rms;
+    sbe24_t a_watt;
+    sbe24_t b_watt;
+    sbe24_t cfa_cnt;
+    sbe24_t cfb_cnt;
+    ube16_t tps1;
+    uint8_t RESERVED1;  // value of 0x00
+    ube16_t tps2;
+    uint8_t RESERVED2;  // value of 0x00
+    uint8_t checksum;   // checksum
+  };
+} __attribute__((packed));
+
+class BL0939 : public PollingComponent, public uart::UARTDevice {
+ public:
+  void set_voltage_sensor(sensor::Sensor *voltage_sensor) { voltage_sensor_ = voltage_sensor; }
+  void set_current_sensor_1(sensor::Sensor *current_sensor_1) { current_sensor_1_ = current_sensor_1; }
+  void set_current_sensor_2(sensor::Sensor *current_sensor_2) { current_sensor_2_ = current_sensor_2; }
+  void set_power_sensor_1(sensor::Sensor *power_sensor_1) { power_sensor_1_ = power_sensor_1; }
+  void set_power_sensor_2(sensor::Sensor *power_sensor_2) { power_sensor_2_ = power_sensor_2; }
+  void set_energy_sensor_1(sensor::Sensor *energy_sensor_1) { energy_sensor_1_ = energy_sensor_1; }
+  void set_energy_sensor_2(sensor::Sensor *energy_sensor_2) { energy_sensor_2_ = energy_sensor_2; }
+  void set_energy_sensor_sum(sensor::Sensor *energy_sensor_sum) { energy_sensor_sum_ = energy_sensor_sum; }
+
+  void loop() override;
+
+  void update() override;
+  void setup() override;
+  void dump_config() override;
+
+ protected:
+  sensor::Sensor *voltage_sensor_;
+  sensor::Sensor *current_sensor_1_;
+  sensor::Sensor *current_sensor_2_;
+  // NB This may be negative as the circuits is seemingly able to measure
+  // power in both directions
+  sensor::Sensor *power_sensor_1_;
+  sensor::Sensor *power_sensor_2_;
+  sensor::Sensor *energy_sensor_1_;
+  sensor::Sensor *energy_sensor_2_;
+  sensor::Sensor *energy_sensor_sum_;
+
+  // Divide by this to turn into Watt
+  float power_reference_ = BL0939_PREF;
+  // Divide by this to turn into Volt
+  float voltage_reference_ = BL0939_UREF;
+  // Divide by this to turn into Ampere
+  float current_reference_ = BL0939_IREF;
+  // Divide by this to turn into kWh
+  float energy_reference_ = BL0939_EREF;
+
+  static uint32_t to_uint32_t(ube24_t input);
+
+  static int32_t to_int32_t(sbe24_t input);
+
+  static bool validate_checksum(const DataPacket *data);
+
+  void received_package_(const DataPacket *data) const;
+};
+}  // namespace bl0939
+}  // namespace esphome

esphome/components/bl0939/sensor.py

@@ -0,0 +1,123 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import sensor, uart
+from esphome.const import (
+    CONF_ID,
+    CONF_VOLTAGE,
+    DEVICE_CLASS_CURRENT,
+    DEVICE_CLASS_ENERGY,
+    DEVICE_CLASS_POWER,
+    DEVICE_CLASS_VOLTAGE,
+    STATE_CLASS_MEASUREMENT,
+    UNIT_AMPERE,
+    UNIT_KILOWATT_HOURS,
+    UNIT_VOLT,
+    UNIT_WATT,
+)
+
+DEPENDENCIES = ["uart"]
+
+CONF_CURRENT_1 = "current_1"
+CONF_CURRENT_2 = "current_2"
+CONF_ACTIVE_POWER_1 = "active_power_1"
+CONF_ACTIVE_POWER_2 = "active_power_2"
+CONF_ENERGY_1 = "energy_1"
+CONF_ENERGY_2 = "energy_2"
+CONF_ENERGY_TOTAL = "energy_total"
+
+bl0939_ns = cg.esphome_ns.namespace("bl0939")
+BL0939 = bl0939_ns.class_("BL0939", cg.PollingComponent, uart.UARTDevice)
+
+CONFIG_SCHEMA = (
+    cv.Schema(
+        {
+            cv.GenerateID(): cv.declare_id(BL0939),
+            cv.Optional(CONF_VOLTAGE): sensor.sensor_schema(
+                unit_of_measurement=UNIT_VOLT,
+                accuracy_decimals=1,
+                device_class=DEVICE_CLASS_VOLTAGE,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_CURRENT_1): sensor.sensor_schema(
+                unit_of_measurement=UNIT_AMPERE,
+                accuracy_decimals=2,
+                device_class=DEVICE_CLASS_CURRENT,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_CURRENT_2): sensor.sensor_schema(
+                unit_of_measurement=UNIT_AMPERE,
+                accuracy_decimals=2,
+                device_class=DEVICE_CLASS_CURRENT,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_ACTIVE_POWER_1): sensor.sensor_schema(
+                unit_of_measurement=UNIT_WATT,
+                accuracy_decimals=0,
+                device_class=DEVICE_CLASS_POWER,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_ACTIVE_POWER_2): sensor.sensor_schema(
+                unit_of_measurement=UNIT_WATT,
+                accuracy_decimals=0,
+                device_class=DEVICE_CLASS_POWER,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_ENERGY_1): sensor.sensor_schema(
+                unit_of_measurement=UNIT_KILOWATT_HOURS,
+                accuracy_decimals=3,
+                device_class=DEVICE_CLASS_ENERGY,
+            ),
+            cv.Optional(CONF_ENERGY_2): sensor.sensor_schema(
+                unit_of_measurement=UNIT_KILOWATT_HOURS,
+                accuracy_decimals=3,
+                device_class=DEVICE_CLASS_ENERGY,
+            ),
+            cv.Optional(CONF_ENERGY_TOTAL): sensor.sensor_schema(
+                unit_of_measurement=UNIT_KILOWATT_HOURS,
+                accuracy_decimals=3,
+                device_class=DEVICE_CLASS_ENERGY,
+            ),
+        }
+    )
+    .extend(cv.polling_component_schema("60s"))
+    .extend(uart.UART_DEVICE_SCHEMA)
+)
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await cg.register_component(var, config)
+    await uart.register_uart_device(var, config)
+
+    if CONF_VOLTAGE in config:
+        conf = config[CONF_VOLTAGE]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_voltage_sensor(sens))
+    if CONF_CURRENT_1 in config:
+        conf = config[CONF_CURRENT_1]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_current_sensor_1(sens))
+    if CONF_CURRENT_2 in config:
+        conf = config[CONF_CURRENT_2]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_current_sensor_2(sens))
+    if CONF_ACTIVE_POWER_1 in config:
+        conf = config[CONF_ACTIVE_POWER_1]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_power_sensor_1(sens))
+    if CONF_ACTIVE_POWER_2 in config:
+        conf = config[CONF_ACTIVE_POWER_2]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_power_sensor_2(sens))
+    if CONF_ENERGY_1 in config:
+        conf = config[CONF_ENERGY_1]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_energy_sensor_1(sens))
+    if CONF_ENERGY_2 in config:
+        conf = config[CONF_ENERGY_2]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_energy_sensor_2(sens))
+    if CONF_ENERGY_TOTAL in config:
+        conf = config[CONF_ENERGY_TOTAL]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_energy_sensor_sum(sens))

esphome/components/ble_client/ble_client.cpp

@@ -118,16 +118,21 @@ void BLEClient::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t es
         this->set_states_(espbt::ClientState::IDLE);
         break;
       }
-      this->conn_id = param->open.conn_id;
-      auto ret = esp_ble_gattc_send_mtu_req(this->gattc_if, param->open.conn_id);
+      break;
+    }
+    case ESP_GATTC_CONNECT_EVT: {
+      ESP_LOGV(TAG, "[%s] ESP_GATTC_CONNECT_EVT", this->address_str().c_str());
+      this->conn_id = param->connect.conn_id;
+      auto ret = esp_ble_gattc_send_mtu_req(this->gattc_if, param->connect.conn_id);
       if (ret) {
-        ESP_LOGW(TAG, "esp_ble_gattc_send_mtu_req failed, status=%d", ret);
+        ESP_LOGW(TAG, "esp_ble_gattc_send_mtu_req failed, status=%x", ret);
       }
       break;
     }
     case ESP_GATTC_CFG_MTU_EVT: {
       if (param->cfg_mtu.status != ESP_GATT_OK) {
-        ESP_LOGW(TAG, "cfg_mtu to %s failed, status %d", this->address_str().c_str(), param->cfg_mtu.status);
+        ESP_LOGW(TAG, "cfg_mtu to %s failed, mtu %d, status %d", this->address_str().c_str(), param->cfg_mtu.mtu,
+                 param->cfg_mtu.status);
         this->set_states_(espbt::ClientState::IDLE);
         break;
       }
@@ -139,7 +144,7 @@ void BLEClient::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t es
       if (memcmp(param->disconnect.remote_bda, this->remote_bda, 6) != 0) {
         return;
       }
-      ESP_LOGV(TAG, "[%s] ESP_GATTC_DISCONNECT_EVT", this->address_str().c_str());
+      ESP_LOGV(TAG, "[%s] ESP_GATTC_DISCONNECT_EVT, reason %d", this->address_str().c_str(), param->disconnect.reason);
       for (auto &svc : this->services_)
         delete svc;  // NOLINT(cppcoreguidelines-owning-memory)
       this->services_.clear();
@@ -201,6 +206,32 @@ void BLEClient::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t es
   }
 }
 
+void BLEClient::gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param) {
+  switch (event) {
+    // This event is sent by the server when it requests security
+    case ESP_GAP_BLE_SEC_REQ_EVT:
+      ESP_LOGV(TAG, "ESP_GAP_BLE_SEC_REQ_EVT %x", event);
+      esp_ble_gap_security_rsp(param->ble_security.ble_req.bd_addr, true);
+      break;
+    // This event is sent once authentication has completed
+    case ESP_GAP_BLE_AUTH_CMPL_EVT:
+      esp_bd_addr_t bd_addr;
+      memcpy(bd_addr, param->ble_security.auth_cmpl.bd_addr, sizeof(esp_bd_addr_t));
+      ESP_LOGI(TAG, "auth complete. remote BD_ADDR: %s", format_hex(bd_addr, 6).c_str());
+      if (!param->ble_security.auth_cmpl.success) {
+        ESP_LOGE(TAG, "auth fail reason = 0x%x", param->ble_security.auth_cmpl.fail_reason);
+      } else {
+        ESP_LOGV(TAG, "auth success. address type = %d auth mode = %d", param->ble_security.auth_cmpl.addr_type,
+                 param->ble_security.auth_cmpl.auth_mode);
+      }
+      break;
+    // There are other events we'll want to implement at some point to support things like pass key
+    // https://github.com/espressif/esp-idf/blob/cba69dd088344ed9d26739f04736ae7a37541b3a/examples/bluetooth/bluedroid/ble/gatt_security_client/tutorial/Gatt_Security_Client_Example_Walkthrough.md
+    default:
+      break;
+  }
+}
+
 // Parse GATT values into a float for a sensor.
 // Ref: https://www.bluetooth.com/specifications/assigned-numbers/format-types/
 float BLEClient::parse_char_value(uint8_t *value, uint16_t length) {

esphome/components/ble_client/ble_client.h

@@ -11,6 +11,7 @@
 #include <esp_gap_ble_api.h>
 #include <esp_gattc_api.h>
 #include <esp_bt_defs.h>
+#include <esp_gatt_common_api.h>
 
 namespace esphome {
 namespace ble_client {
@@ -86,6 +87,7 @@ class BLEClient : public espbt::ESPBTClient, public Component {
 
   void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
                            esp_ble_gattc_cb_param_t *param) override;
+  void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param) override;
   bool parse_device(const espbt::ESPBTDevice &device) override;
   void on_scan_end() override {}
   void connect() override;

esphome/components/bme280/bme280.cpp

@@ -81,6 +81,11 @@ static const char *iir_filter_to_str(BME280IIRFilter filter) {
 void BME280Component::setup() {
   ESP_LOGCONFIG(TAG, "Setting up BME280...");
   uint8_t chip_id = 0;
+
+  // Mark as not failed before initializing. Some devices will turn off sensors to save on batteries
+  // and when they come back on, the COMPONENT_STATE_FAILED bit must be unset on the component.
+  this->component_state_ &= ~COMPONENT_STATE_FAILED;
+
   if (!this->read_byte(BME280_REGISTER_CHIPID, &chip_id)) {
     this->error_code_ = COMMUNICATION_FAILED;
     this->mark_failed();

esphome/components/bme680_bsec/bme680_bsec.cpp

@@ -169,6 +169,14 @@ void BME680BSECComponent::loop() {
   } else {
     this->status_clear_warning();
   }
+
+  // Process a single action from the queue. These are primarily sensor state publishes
+  // that in totality take too long to send in a single call.
+  if (this->queue_.size()) {
+    auto action = std::move(this->queue_.front());
+    this->queue_.pop();
+    action();
+  }
 }
 
 void BME680BSECComponent::run_() {
@@ -306,37 +314,39 @@ void BME680BSECComponent::read_(int64_t trigger_time_ns, bsec_bme_settings_t bme
 }
 
 void BME680BSECComponent::publish_(const bsec_output_t *outputs, uint8_t num_outputs) {
-  ESP_LOGV(TAG, "Publishing sensor states");
+  ESP_LOGV(TAG, "Queuing sensor state publish actions");
   for (uint8_t i = 0; i < num_outputs; i++) {
+    float signal = outputs[i].signal;
     switch (outputs[i].sensor_id) {
       case BSEC_OUTPUT_IAQ:
-      case BSEC_OUTPUT_STATIC_IAQ:
-        uint8_t accuracy;
-        accuracy = outputs[i].accuracy;
-        this->publish_sensor_state_(this->iaq_sensor_, outputs[i].signal);
-        this->publish_sensor_state_(this->iaq_accuracy_text_sensor_, IAQ_ACCURACY_STATES[accuracy]);
-        this->publish_sensor_state_(this->iaq_accuracy_sensor_, accuracy, true);
+      case BSEC_OUTPUT_STATIC_IAQ: {
+        uint8_t accuracy = outputs[i].accuracy;
+        this->queue_push_([this, signal]() { this->publish_sensor_(this->iaq_sensor_, signal); });
+        this->queue_push_([this, accuracy]() {
+          this->publish_sensor_(this->iaq_accuracy_text_sensor_, IAQ_ACCURACY_STATES[accuracy]);
+        });
+        this->queue_push_([this, accuracy]() { this->publish_sensor_(this->iaq_accuracy_sensor_, accuracy, true); });
 
         // Queue up an opportunity to save state
-        this->defer("save_state", [this, accuracy]() { this->save_state_(accuracy); });
-        break;
+        this->queue_push_([this, accuracy]() { this->save_state_(accuracy); });
+      } break;
       case BSEC_OUTPUT_CO2_EQUIVALENT:
-        this->publish_sensor_state_(this->co2_equivalent_sensor_, outputs[i].signal);
+        this->queue_push_([this, signal]() { this->publish_sensor_(this->co2_equivalent_sensor_, signal); });
         break;
       case BSEC_OUTPUT_BREATH_VOC_EQUIVALENT:
-        this->publish_sensor_state_(this->breath_voc_equivalent_sensor_, outputs[i].signal);
+        this->queue_push_([this, signal]() { this->publish_sensor_(this->breath_voc_equivalent_sensor_, signal); });
         break;
       case BSEC_OUTPUT_RAW_PRESSURE:
-        this->publish_sensor_state_(this->pressure_sensor_, outputs[i].signal / 100.0f);
+        this->queue_push_([this, signal]() { this->publish_sensor_(this->pressure_sensor_, signal / 100.0f); });
         break;
       case BSEC_OUTPUT_RAW_GAS:
-        this->publish_sensor_state_(this->gas_resistance_sensor_, outputs[i].signal);
+        this->queue_push_([this, signal]() { this->publish_sensor_(this->gas_resistance_sensor_, signal); });
         break;
       case BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_TEMPERATURE:
-        this->publish_sensor_state_(this->temperature_sensor_, outputs[i].signal);
+        this->queue_push_([this, signal]() { this->publish_sensor_(this->temperature_sensor_, signal); });
         break;
       case BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_HUMIDITY:
-        this->publish_sensor_state_(this->humidity_sensor_, outputs[i].signal);
+        this->queue_push_([this, signal]() { this->publish_sensor_(this->humidity_sensor_, signal); });
         break;
     }
   }
@@ -352,14 +362,14 @@ int64_t BME680BSECComponent::get_time_ns_() {
   return (time_ms + ((int64_t) this->millis_overflow_counter_ << 32)) * INT64_C(1000000);
 }
 
-void BME680BSECComponent::publish_sensor_state_(sensor::Sensor *sensor, float value, bool change_only) {
+void BME680BSECComponent::publish_sensor_(sensor::Sensor *sensor, float value, bool change_only) {
   if (!sensor || (change_only && sensor->has_state() && sensor->state == value)) {
     return;
   }
   sensor->publish_state(value);
 }
 
-void BME680BSECComponent::publish_sensor_state_(text_sensor::TextSensor *sensor, const std::string &value) {
+void BME680BSECComponent::publish_sensor_(text_sensor::TextSensor *sensor, const std::string &value) {
   if (!sensor || (sensor->has_state() && sensor->state == value)) {
     return;
   }

esphome/components/bme680_bsec/bme680_bsec.h

@@ -70,12 +70,14 @@ class BME680BSECComponent : public Component, public i2c::I2CDevice {
   void publish_(const bsec_output_t *outputs, uint8_t num_outputs);
   int64_t get_time_ns_();
 
-  void publish_sensor_state_(sensor::Sensor *sensor, float value, bool change_only = false);
-  void publish_sensor_state_(text_sensor::TextSensor *sensor, const std::string &value);
+  void publish_sensor_(sensor::Sensor *sensor, float value, bool change_only = false);
+  void publish_sensor_(text_sensor::TextSensor *sensor, const std::string &value);
 
   void load_state_();
   void save_state_(uint8_t accuracy);
 
+  void queue_push_(std::function<void()> &&f) { this->queue_.push(std::move(f)); }
+
   struct bme680_dev bme680_;
   bsec_library_return_t bsec_status_{BSEC_OK};
   int8_t bme680_status_{BME680_OK};
@@ -84,6 +86,8 @@ class BME680BSECComponent : public Component, public i2c::I2CDevice {
   uint32_t millis_overflow_counter_{0};
   int64_t next_call_ns_{0};
 
+  std::queue<std::function<void()>> queue_;
+
   ESPPreferenceObject bsec_state_;
   uint32_t state_save_interval_ms_{21600000};  // 6 hours - 4 times a day
   uint32_t last_state_save_ms_ = 0;

esphome/components/canbus/__init__.py

@@ -10,6 +10,7 @@ IS_PLATFORM_COMPONENT = True
 CONF_CAN_ID = "can_id"
 CONF_CAN_ID_MASK = "can_id_mask"
 CONF_USE_EXTENDED_ID = "use_extended_id"
+CONF_REMOTE_TRANSMISSION_REQUEST = "remote_transmission_request"
 CONF_CANBUS_ID = "canbus_id"
 CONF_BIT_RATE = "bit_rate"
 CONF_ON_FRAME = "on_frame"
@@ -77,6 +78,7 @@ CANBUS_SCHEMA = cv.Schema(
                     min=0, max=0x1FFFFFFF
                 ),
                 cv.Optional(CONF_USE_EXTENDED_ID, default=False): cv.boolean,
+                cv.Optional(CONF_REMOTE_TRANSMISSION_REQUEST): cv.boolean,
             },
             validate_id,
         ),
@@ -99,10 +101,20 @@ async def setup_canbus_core_(var, config):
         trigger = cg.new_Pvariable(
             conf[CONF_TRIGGER_ID], var, can_id, can_id_mask, ext_id
         )
+        if CONF_REMOTE_TRANSMISSION_REQUEST in conf:
+            cg.add(
+                trigger.set_remote_transmission_request(
+                    conf[CONF_REMOTE_TRANSMISSION_REQUEST]
+                )
+            )
         await cg.register_component(trigger, conf)
         await automation.build_automation(
             trigger,
-            [(cg.std_vector.template(cg.uint8), "x"), (cg.uint32, "can_id")],
+            [
+                (cg.std_vector.template(cg.uint8), "x"),
+                (cg.uint32, "can_id"),
+                (cg.bool_, "remote_transmission_request"),
+            ],
             conf,
         )
 
@@ -122,6 +134,7 @@ async def register_canbus(var, config):
             cv.GenerateID(CONF_CANBUS_ID): cv.use_id(CanbusComponent),
             cv.Optional(CONF_CAN_ID): cv.int_range(min=0, max=0x1FFFFFFF),
             cv.Optional(CONF_USE_EXTENDED_ID, default=False): cv.boolean,
+            cv.Optional(CONF_REMOTE_TRANSMISSION_REQUEST, default=False): cv.boolean,
             cv.Required(CONF_DATA): cv.templatable(validate_raw_data),
         },
         validate_id,
@@ -140,6 +153,11 @@ async def canbus_action_to_code(config, action_id, template_arg, args):
     )
     cg.add(var.set_use_extended_id(use_extended_id))
 
+    remote_transmission_request = await cg.templatable(
+        config[CONF_REMOTE_TRANSMISSION_REQUEST], args, bool
+    )
+    cg.add(var.set_remote_transmission_request(remote_transmission_request))
+
     data = config[CONF_DATA]
     if isinstance(data, bytes):
         data = [int(x) for x in data]

esphome/components/canbus/canbus.cpp

@@ -22,20 +22,22 @@ void Canbus::dump_config() {
   }
 }
 
-void Canbus::send_data(uint32_t can_id, bool use_extended_id, const std::vector<uint8_t> &data) {
+void Canbus::send_data(uint32_t can_id, bool use_extended_id, bool remote_transmission_request,
+                       const std::vector<uint8_t> &data) {
   struct CanFrame can_message;
 
   uint8_t size = static_cast<uint8_t>(data.size());
   if (use_extended_id) {
-    ESP_LOGD(TAG, "send extended id=0x%08x size=%d", can_id, size);
+    ESP_LOGD(TAG, "send extended id=0x%08x rtr=%s size=%d", can_id, TRUEFALSE(remote_transmission_request), size);
   } else {
-    ESP_LOGD(TAG, "send extended id=0x%03x size=%d", can_id, size);
+    ESP_LOGD(TAG, "send extended id=0x%03x rtr=%s size=%d", can_id, TRUEFALSE(remote_transmission_request), size);
   }
   if (size > CAN_MAX_DATA_LENGTH)
     size = CAN_MAX_DATA_LENGTH;
   can_message.can_data_length_code = size;
   can_message.can_id = can_id;
   can_message.use_extended_id = use_extended_id;
+  can_message.remote_transmission_request = remote_transmission_request;
 
   for (int i = 0; i < size; i++) {
     can_message.data[i] = data[i];
@@ -79,8 +81,10 @@ void Canbus::loop() {
     // fire all triggers
     for (auto *trigger : this->triggers_) {
       if ((trigger->can_id_ == (can_message.can_id & trigger->can_id_mask_)) &&
-          (trigger->use_extended_id_ == can_message.use_extended_id)) {
-        trigger->trigger(data, can_message.can_id);
+          (trigger->use_extended_id_ == can_message.use_extended_id) &&
+          (!trigger->remote_transmission_request_.has_value() ||
+           trigger->remote_transmission_request_.value() == can_message.remote_transmission_request)) {
+        trigger->trigger(data, can_message.can_id, can_message.remote_transmission_request);
       }
     }
   }

esphome/components/canbus/canbus.h

@@ -62,7 +62,12 @@ class Canbus : public Component {
   float get_setup_priority() const override { return setup_priority::HARDWARE; }
   void loop() override;
 
-  void send_data(uint32_t can_id, bool use_extended_id, const std::vector<uint8_t> &data);
+  void send_data(uint32_t can_id, bool use_extended_id, bool remote_transmission_request,
+                 const std::vector<uint8_t> &data);
+  void send_data(uint32_t can_id, bool use_extended_id, const std::vector<uint8_t> &data) {
+    // for backwards compatibility only
+    this->send_data(can_id, use_extended_id, false, data);
+  }
   void set_can_id(uint32_t can_id) { this->can_id_ = can_id; }
   void set_use_extended_id(bool use_extended_id) { this->use_extended_id_ = use_extended_id; }
   void set_bitrate(CanSpeed bit_rate) { this->bit_rate_ = bit_rate; }
@@ -96,33 +101,43 @@ template<typename... Ts> class CanbusSendAction : public Action<Ts...>, public P
 
   void set_use_extended_id(bool use_extended_id) { this->use_extended_id_ = use_extended_id; }
 
+  void set_remote_transmission_request(bool remote_transmission_request) {
+    this->remote_transmission_request_ = remote_transmission_request;
+  }
+
   void play(Ts... x) override {
     auto can_id = this->can_id_.has_value() ? *this->can_id_ : this->parent_->can_id_;
     auto use_extended_id =
         this->use_extended_id_.has_value() ? *this->use_extended_id_ : this->parent_->use_extended_id_;
     if (this->static_) {
-      this->parent_->send_data(can_id, use_extended_id, this->data_static_);
+      this->parent_->send_data(can_id, use_extended_id, this->remote_transmission_request_, this->data_static_);
     } else {
       auto val = this->data_func_(x...);
-      this->parent_->send_data(can_id, use_extended_id, val);
+      this->parent_->send_data(can_id, use_extended_id, this->remote_transmission_request_, val);
     }
   }
 
  protected:
   optional<uint32_t> can_id_{};
   optional<bool> use_extended_id_{};
+  bool remote_transmission_request_{false};
   bool static_{false};
   std::function<std::vector<uint8_t>(Ts...)> data_func_{};
   std::vector<uint8_t> data_static_{};
 };
 
-class CanbusTrigger : public Trigger<std::vector<uint8_t>, uint32_t>, public Component {
+class CanbusTrigger : public Trigger<std::vector<uint8_t>, uint32_t, bool>, public Component {
   friend class Canbus;
 
  public:
   explicit CanbusTrigger(Canbus *parent, const std::uint32_t can_id, const std::uint32_t can_id_mask,
                          const bool use_extended_id)
       : parent_(parent), can_id_(can_id), can_id_mask_(can_id_mask), use_extended_id_(use_extended_id){};
+
+  void set_remote_transmission_request(bool remote_transmission_request) {
+    this->remote_transmission_request_ = remote_transmission_request;
+  }
+
   void setup() override { this->parent_->add_trigger(this); }
 
  protected:
@@ -130,6 +145,7 @@ class CanbusTrigger : public Trigger<std::vector<uint8_t>, uint32_t>, public Com
   uint32_t can_id_;
   uint32_t can_id_mask_;
   bool use_extended_id_;
+  optional<bool> remote_transmission_request_{};
 };
 
 }  // namespace canbus

esphome/components/captive_portal/captive_portal.h

@@ -39,17 +39,7 @@ class CaptivePortal : public AsyncWebHandler, public Component {
     if (request->method() == HTTP_GET) {
       if (request->url() == "/")
         return true;
-      if (request->url() == "/stylesheet.css")
-        return true;
-      if (request->url() == "/wifi-strength-1.svg")
-        return true;
-      if (request->url() == "/wifi-strength-2.svg")
-        return true;
-      if (request->url() == "/wifi-strength-3.svg")
-        return true;
-      if (request->url() == "/wifi-strength-4.svg")
-        return true;
-      if (request->url() == "/lock.svg")
+      if (request->url() == "/config.json")
         return true;
       if (request->url() == "/wifisave")
         return true;

esphome/components/climate/__init__.py

@@ -287,9 +287,11 @@ CLIMATE_CONTROL_ACTION_SCHEMA = cv.Schema(
         cv.Exclusive(CONF_FAN_MODE, "fan_mode"): cv.templatable(
             validate_climate_fan_mode
         ),
-        cv.Exclusive(CONF_CUSTOM_FAN_MODE, "fan_mode"): cv.string_strict,
+        cv.Exclusive(CONF_CUSTOM_FAN_MODE, "fan_mode"): cv.templatable(
+            cv.string_strict
+        ),
         cv.Exclusive(CONF_PRESET, "preset"): cv.templatable(validate_climate_preset),
-        cv.Exclusive(CONF_CUSTOM_PRESET, "preset"): cv.string_strict,
+        cv.Exclusive(CONF_CUSTOM_PRESET, "preset"): cv.templatable(cv.string_strict),
         cv.Optional(CONF_SWING_MODE): cv.templatable(validate_climate_swing_mode),
     }
 )
@@ -324,13 +326,17 @@ async def climate_control_to_code(config, action_id, template_arg, args):
         template_ = await cg.templatable(config[CONF_FAN_MODE], args, ClimateFanMode)
         cg.add(var.set_fan_mode(template_))
     if CONF_CUSTOM_FAN_MODE in config:
-        template_ = await cg.templatable(config[CONF_CUSTOM_FAN_MODE], args, str)
+        template_ = await cg.templatable(
+            config[CONF_CUSTOM_FAN_MODE], args, cg.std_string
+        )
         cg.add(var.set_custom_fan_mode(template_))
     if CONF_PRESET in config:
         template_ = await cg.templatable(config[CONF_PRESET], args, ClimatePreset)
         cg.add(var.set_preset(template_))
     if CONF_CUSTOM_PRESET in config:
-        template_ = await cg.templatable(config[CONF_CUSTOM_PRESET], args, str)
+        template_ = await cg.templatable(
+            config[CONF_CUSTOM_PRESET], args, cg.std_string
+        )
         cg.add(var.set_custom_preset(template_))
     if CONF_SWING_MODE in config:
         template_ = await cg.templatable(

esphome/components/climate/climate_mode.h

@@ -76,7 +76,7 @@ enum ClimateSwingMode : uint8_t {
   CLIMATE_SWING_HORIZONTAL = 3,
 };
 
-/// Enum for all modes a climate swing can be in
+/// Enum for all preset modes
 enum ClimatePreset : uint8_t {
   /// No preset is active
   CLIMATE_PRESET_NONE = 0,
@@ -108,7 +108,7 @@ const LogString *climate_fan_mode_to_string(ClimateFanMode mode);
 /// Convert the given ClimateSwingMode to a human-readable string.
 const LogString *climate_swing_mode_to_string(ClimateSwingMode mode);
 
-/// Convert the given ClimateSwingMode to a human-readable string.
+/// Convert the given PresetMode to a human-readable string.
 const LogString *climate_preset_to_string(ClimatePreset preset);
 
 }  // namespace climate

esphome/components/climate/climate_traits.h

@@ -141,7 +141,7 @@ class ClimateTraits {
   }
   bool supports_swing_mode(ClimateSwingMode swing_mode) const { return supported_swing_modes_.count(swing_mode); }
   bool get_supports_swing_modes() const { return !supported_swing_modes_.empty(); }
-  std::set<ClimateSwingMode> get_supported_swing_modes() { return supported_swing_modes_; }
+  std::set<ClimateSwingMode> get_supported_swing_modes() const { return supported_swing_modes_; }
 
   float get_visual_min_temperature() const { return visual_min_temperature_; }
   void set_visual_min_temperature(float visual_min_temperature) { visual_min_temperature_ = visual_min_temperature; }

esphome/components/copy/select/copy_select.cpp

@@ -7,7 +7,7 @@ namespace copy {
 static const char *const TAG = "copy.select";
 
 void CopySelect::setup() {
-  source_->add_on_state_callback([this](const std::string &value) { this->publish_state(value); });
+  source_->add_on_state_callback([this](const std::string &value, size_t index) { this->publish_state(value); });
 
   traits.set_options(source_->traits.get_options());
 

esphome/components/dallas/esp_one_wire.cpp

@@ -142,7 +142,6 @@ void IRAM_ATTR ESPOneWire::select(uint64_t address) {
 void IRAM_ATTR ESPOneWire::reset_search() {
   this->last_discrepancy_ = 0;
   this->last_device_flag_ = false;
-  this->last_family_discrepancy_ = 0;
   this->rom_number_ = 0;
 }
 uint64_t IRAM_ATTR ESPOneWire::search() {
@@ -195,9 +194,6 @@ uint64_t IRAM_ATTR ESPOneWire::search() {
 
         if (!branch) {
           last_zero = id_bit_number;
-          if (last_zero < 9) {
-            this->last_discrepancy_ = last_zero;
-          }
         }
       }
 

esphome/components/dallas/esp_one_wire.h

@@ -60,7 +60,6 @@ class ESPOneWire {
 
   ISRInternalGPIOPin pin_;
   uint8_t last_discrepancy_{0};
-  uint8_t last_family_discrepancy_{0};
   bool last_device_flag_{false};
   uint64_t rom_number_{0};
 };

esphome/components/daly_bms/sensor.py

@@ -98,6 +98,8 @@ CELL_VOLTAGE_SCHEMA = sensor.sensor_schema(
     unit_of_measurement=UNIT_VOLT,
     device_class=DEVICE_CLASS_VOLTAGE,
     state_class=STATE_CLASS_MEASUREMENT,
+    icon=ICON_FLASH,
+    accuracy_decimals=3,
 )
 
 CONFIG_SCHEMA = cv.All(

esphome/components/dashboard_import/__init__.py

@@ -64,7 +64,10 @@ def import_config(path: str, name: str, project_name: str, import_url: str) -> N
         config = {
             "substitutions": {"name": name},
             "packages": {project_name: import_url},
-            "esphome": {"name_add_mac_suffix": False},
+            "esphome": {
+                "name": "${name}",
+                "name_add_mac_suffix": False,
+            },
         }
         p.write_text(
             dump(config) + WIFI_CONFIG,

esphome/components/deep_sleep/__init__.py

@@ -1,13 +1,18 @@
 import esphome.codegen as cg
+from esphome.components import time
 import esphome.config_validation as cv
 from esphome import pins, automation
 from esphome.const import (
+    CONF_HOUR,
     CONF_ID,
+    CONF_MINUTE,
     CONF_MODE,
     CONF_NUMBER,
     CONF_PINS,
     CONF_RUN_DURATION,
+    CONF_SECOND,
     CONF_SLEEP_DURATION,
+    CONF_TIME_ID,
     CONF_WAKEUP_PIN,
 )
 
@@ -15,6 +20,7 @@ from esphome.components.esp32 import get_esp32_variant
 from esphome.components.esp32.const import (
     VARIANT_ESP32,
     VARIANT_ESP32C3,
+    VARIANT_ESP32S2,
 )
 
 WAKEUP_PINS = {
@@ -39,6 +45,30 @@ WAKEUP_PINS = {
         39,
     ],
     VARIANT_ESP32C3: [0, 1, 2, 3, 4, 5],
+    VARIANT_ESP32S2: [
+        0,
+        1,
+        2,
+        3,
+        4,
+        5,
+        6,
+        7,
+        8,
+        9,
+        10,
+        11,
+        12,
+        13,
+        14,
+        15,
+        16,
+        17,
+        18,
+        19,
+        20,
+        21,
+    ],
 }
 
 
@@ -63,7 +93,14 @@ deep_sleep_ns = cg.esphome_ns.namespace("deep_sleep")
 DeepSleepComponent = deep_sleep_ns.class_("DeepSleepComponent", cg.Component)
 EnterDeepSleepAction = deep_sleep_ns.class_("EnterDeepSleepAction", automation.Action)
 PreventDeepSleepAction = deep_sleep_ns.class_(
-    "PreventDeepSleepAction", automation.Action
+    "PreventDeepSleepAction",
+    automation.Action,
+    cg.Parented.template(DeepSleepComponent),
+)
+AllowDeepSleepAction = deep_sleep_ns.class_(
+    "AllowDeepSleepAction",
+    automation.Action,
+    cg.Parented.template(DeepSleepComponent),
 )
 
 WakeupPinMode = deep_sleep_ns.enum("WakeupPinMode")
@@ -87,6 +124,7 @@ CONF_TOUCH_WAKEUP = "touch_wakeup"
 CONF_DEFAULT = "default"
 CONF_GPIO_WAKEUP_REASON = "gpio_wakeup_reason"
 CONF_TOUCH_WAKEUP_REASON = "touch_wakeup_reason"
+CONF_UNTIL = "until"
 
 WAKEUP_CAUSES_SCHEMA = cv.Schema(
     {
@@ -177,20 +215,30 @@ async def to_code(config):
     cg.add_define("USE_DEEP_SLEEP")
 
 
-DEEP_SLEEP_ENTER_SCHEMA = automation.maybe_simple_id(
+DEEP_SLEEP_ACTION_SCHEMA = cv.Schema(
     {
         cv.GenerateID(): cv.use_id(DeepSleepComponent),
-        cv.Optional(CONF_SLEEP_DURATION): cv.templatable(
-            cv.positive_time_period_milliseconds
-        ),
     }
 )
 
-
-DEEP_SLEEP_PREVENT_SCHEMA = automation.maybe_simple_id(
-    {
-        cv.GenerateID(): cv.use_id(DeepSleepComponent),
-    }
+DEEP_SLEEP_ENTER_SCHEMA = cv.All(
+    automation.maybe_simple_id(
+        DEEP_SLEEP_ACTION_SCHEMA.extend(
+            cv.Schema(
+                {
+                    cv.Exclusive(CONF_SLEEP_DURATION, "time"): cv.templatable(
+                        cv.positive_time_period_milliseconds
+                    ),
+                    # Only on ESP32 due to how long the RTC on ESP8266 can stay asleep
+                    cv.Exclusive(CONF_UNTIL, "time"): cv.All(
+                        cv.only_on_esp32, cv.time_of_day
+                    ),
+                    cv.Optional(CONF_TIME_ID): cv.use_id(time.RealTimeClock),
+                }
+            )
+        )
+    ),
+    cv.has_none_or_all_keys(CONF_UNTIL, CONF_TIME_ID),
 )
 
 
@@ -203,12 +251,28 @@ async def deep_sleep_enter_to_code(config, action_id, template_arg, args):
     if CONF_SLEEP_DURATION in config:
         template_ = await cg.templatable(config[CONF_SLEEP_DURATION], args, cg.int32)
         cg.add(var.set_sleep_duration(template_))
+
+    if CONF_UNTIL in config:
+        until = config[CONF_UNTIL]
+        cg.add(var.set_until(until[CONF_HOUR], until[CONF_MINUTE], until[CONF_SECOND]))
+
+        time_ = await cg.get_variable(config[CONF_TIME_ID])
+        cg.add(var.set_time(time_))
+
     return var
 
 
 @automation.register_action(
-    "deep_sleep.prevent", PreventDeepSleepAction, DEEP_SLEEP_PREVENT_SCHEMA
+    "deep_sleep.prevent",
+    PreventDeepSleepAction,
+    automation.maybe_simple_id(DEEP_SLEEP_ACTION_SCHEMA),
 )
-async def deep_sleep_prevent_to_code(config, action_id, template_arg, args):
-    paren = await cg.get_variable(config[CONF_ID])
-    return cg.new_Pvariable(action_id, template_arg, paren)
+@automation.register_action(
+    "deep_sleep.allow",
+    AllowDeepSleepAction,
+    automation.maybe_simple_id(DEEP_SLEEP_ACTION_SCHEMA),
+)
+async def deep_sleep_action_to_code(config, action_id, template_arg, args):
+    var = cg.new_Pvariable(action_id, template_arg)
+    await cg.register_parented(var, config[CONF_ID])
+    return var

esphome/components/deep_sleep/deep_sleep_component.cpp

@@ -1,6 +1,7 @@
 #include "deep_sleep_component.h"
-#include "esphome/core/log.h"
+#include <cinttypes>
 #include "esphome/core/application.h"
+#include "esphome/core/log.h"
 
 #ifdef USE_ESP8266
 #include <Esp.h>
@@ -20,6 +21,7 @@ optional<uint32_t> DeepSleepComponent::get_run_duration_() const {
     switch (wakeup_cause) {
       case ESP_SLEEP_WAKEUP_EXT0:
       case ESP_SLEEP_WAKEUP_EXT1:
+      case ESP_SLEEP_WAKEUP_GPIO:
         return this->wakeup_cause_to_run_duration_->gpio_cause;
       case ESP_SLEEP_WAKEUP_TOUCHPAD:
         return this->wakeup_cause_to_run_duration_->touch_cause;
@@ -71,16 +73,27 @@ float DeepSleepComponent::get_loop_priority() const {
   return -100.0f;  // run after everything else is ready
 }
 void DeepSleepComponent::set_sleep_duration(uint32_t time_ms) { this->sleep_duration_ = uint64_t(time_ms) * 1000; }
-#ifdef USE_ESP32
+#if defined(USE_ESP32)
 void DeepSleepComponent::set_wakeup_pin_mode(WakeupPinMode wakeup_pin_mode) {
   this->wakeup_pin_mode_ = wakeup_pin_mode;
 }
+#endif
+
+#if defined(USE_ESP32)
+#if !defined(USE_ESP32_VARIANT_ESP32C3)
+
 void DeepSleepComponent::set_ext1_wakeup(Ext1Wakeup ext1_wakeup) { this->ext1_wakeup_ = ext1_wakeup; }
+
 void DeepSleepComponent::set_touch_wakeup(bool touch_wakeup) { this->touch_wakeup_ = touch_wakeup; }
+
+#endif
+
 void DeepSleepComponent::set_run_duration(WakeupCauseToRunDuration wakeup_cause_to_run_duration) {
   wakeup_cause_to_run_duration_ = wakeup_cause_to_run_duration;
 }
+
 #endif
+
 void DeepSleepComponent::set_run_duration(uint32_t time_ms) { this->run_duration_ = time_ms; }
 void DeepSleepComponent::begin_sleep(bool manual) {
   if (this->prevent_ && !manual) {
@@ -101,10 +114,13 @@ void DeepSleepComponent::begin_sleep(bool manual) {
 #endif
 
   ESP_LOGI(TAG, "Beginning Deep Sleep");
+  if (this->sleep_duration_.has_value())
+    ESP_LOGI(TAG, "Sleeping for %" PRId64 "us", *this->sleep_duration_);
 
   App.run_safe_shutdown_hooks();
 
-#if defined(USE_ESP32) && !defined(USE_ESP32_VARIANT_ESP32C3)
+#if defined(USE_ESP32)
+#if !defined(USE_ESP32_VARIANT_ESP32C3)
   if (this->sleep_duration_.has_value())
     esp_sleep_enable_timer_wakeup(*this->sleep_duration_);
   if (this->wakeup_pin_ != nullptr) {
@@ -122,10 +138,7 @@ void DeepSleepComponent::begin_sleep(bool manual) {
     esp_sleep_enable_touchpad_wakeup();
     esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON);
   }
-
-  esp_deep_sleep_start();
 #endif
-
 #ifdef USE_ESP32_VARIANT_ESP32C3
   if (this->sleep_duration_.has_value())
     esp_sleep_enable_timer_wakeup(*this->sleep_duration_);
@@ -134,9 +147,12 @@ void DeepSleepComponent::begin_sleep(bool manual) {
     if (this->wakeup_pin_mode_ == WAKEUP_PIN_MODE_INVERT_WAKEUP && this->wakeup_pin_->digital_read()) {
       level = !level;
     }
-    esp_deep_sleep_enable_gpio_wakeup(gpio_num_t(this->wakeup_pin_->get_pin()), level);
+    esp_deep_sleep_enable_gpio_wakeup(gpio_num_t(this->wakeup_pin_->get_pin()),
+                                      static_cast<esp_deepsleep_gpio_wake_up_mode_t>(level));
   }
 #endif
+  esp_deep_sleep_start();
+#endif
 
 #ifdef USE_ESP8266
   ESP.deepSleep(*this->sleep_duration_);  // NOLINT(readability-static-accessed-through-instance)
@@ -144,6 +160,7 @@ void DeepSleepComponent::begin_sleep(bool manual) {
 }
 float DeepSleepComponent::get_setup_priority() const { return setup_priority::LATE; }
 void DeepSleepComponent::prevent_deep_sleep() { this->prevent_ = true; }
+void DeepSleepComponent::allow_deep_sleep() { this->prevent_ = false; }
 
 }  // namespace deep_sleep
 }  // namespace esphome

esphome/components/deep_sleep/deep_sleep_component.h

@@ -9,6 +9,10 @@
 #include <esp_sleep.h>
 #endif
 
+#ifdef USE_TIME
+#include "esphome/components/time/real_time_clock.h"
+#endif
+
 namespace esphome {
 namespace deep_sleep {
 
@@ -66,17 +70,19 @@ class DeepSleepComponent : public Component {
   void set_wakeup_pin_mode(WakeupPinMode wakeup_pin_mode);
 #endif
 
-#if defined(USE_ESP32) && !defined(USE_ESP32_VARIANT_ESP32C3)
+#if defined(USE_ESP32)
+#if !defined(USE_ESP32_VARIANT_ESP32C3)
 
   void set_ext1_wakeup(Ext1Wakeup ext1_wakeup);
 
   void set_touch_wakeup(bool touch_wakeup);
 
+#endif
   // Set the duration in ms for how long the code should run before entering
   // deep sleep mode, according to the cause the ESP32 has woken.
   void set_run_duration(WakeupCauseToRunDuration wakeup_cause_to_run_duration);
-
 #endif
+
   /// Set a duration in ms for how long the code should run before entering deep sleep mode.
   void set_run_duration(uint32_t time_ms);
 
@@ -90,6 +96,7 @@ class DeepSleepComponent : public Component {
   void begin_sleep(bool manual = false);
 
   void prevent_deep_sleep();
+  void allow_deep_sleep();
 
  protected:
   // Returns nullopt if no run duration is set. Otherwise, returns the run
@@ -116,25 +123,81 @@ template<typename... Ts> class EnterDeepSleepAction : public Action<Ts...> {
   EnterDeepSleepAction(DeepSleepComponent *deep_sleep) : deep_sleep_(deep_sleep) {}
   TEMPLATABLE_VALUE(uint32_t, sleep_duration);
 
+#ifdef USE_TIME
+  void set_until(uint8_t hour, uint8_t minute, uint8_t second) {
+    this->hour_ = hour;
+    this->minute_ = minute;
+    this->second_ = second;
+  }
+
+  void set_time(time::RealTimeClock *time) { this->time_ = time; }
+#endif
+
   void play(Ts... x) override {
     if (this->sleep_duration_.has_value()) {
       this->deep_sleep_->set_sleep_duration(this->sleep_duration_.value(x...));
     }
+#ifdef USE_TIME
+
+    if (this->hour_.has_value()) {
+      auto time = this->time_->now();
+      const uint32_t timestamp_now = time.timestamp;
+
+      bool after_time = false;
+      if (time.hour > this->hour_) {
+        after_time = true;
+      } else {
+        if (time.hour == this->hour_) {
+          if (time.minute > this->minute_) {
+            after_time = true;
+          } else {
+            if (time.minute == this->minute_) {
+              if (time.second > this->second_) {
+                after_time = true;
+              }
+            }
+          }
+        }
+      }
+
+      time.hour = *this->hour_;
+      time.minute = *this->minute_;
+      time.second = *this->second_;
+      time.recalc_timestamp_utc();
+
+      time_t timestamp = time.timestamp;  // timestamp in local time zone
+
+      if (after_time)
+        timestamp += 60 * 60 * 24;
+
+      int32_t offset = time::ESPTime::timezone_offset();
+      timestamp -= offset;  // Change timestamp to utc
+      const uint32_t ms_left = (timestamp - timestamp_now) * 1000;
+      this->deep_sleep_->set_sleep_duration(ms_left);
+    }
+#endif
     this->deep_sleep_->begin_sleep(true);
   }
 
  protected:
   DeepSleepComponent *deep_sleep_;
+#ifdef USE_TIME
+  optional<uint8_t> hour_;
+  optional<uint8_t> minute_;
+  optional<uint8_t> second_;
+
+  time::RealTimeClock *time_;
+#endif
 };
 
-template<typename... Ts> class PreventDeepSleepAction : public Action<Ts...> {
+template<typename... Ts> class PreventDeepSleepAction : public Action<Ts...>, public Parented<DeepSleepComponent> {
  public:
-  PreventDeepSleepAction(DeepSleepComponent *deep_sleep) : deep_sleep_(deep_sleep) {}
+  void play(Ts... x) override { this->parent_->prevent_deep_sleep(); }
+};
 
-  void play(Ts... x) override { this->deep_sleep_->prevent_deep_sleep(); }
-
- protected:
-  DeepSleepComponent *deep_sleep_;
+template<typename... Ts> class AllowDeepSleepAction : public Action<Ts...>, public Parented<DeepSleepComponent> {
+ public:
+  void play(Ts... x) override { this->parent_->allow_deep_sleep(); }
 };
 
 }  // namespace deep_sleep

esphome/components/delonghi/__init__.py

@@ -0,0 +1 @@
+CODEOWNERS = ["@grob6000"]

esphome/components/delonghi/climate.py

@@ -0,0 +1,20 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import climate_ir
+from esphome.const import CONF_ID
+
+AUTO_LOAD = ["climate_ir"]
+
+delonghi_ns = cg.esphome_ns.namespace("delonghi")
+DelonghiClimate = delonghi_ns.class_("DelonghiClimate", climate_ir.ClimateIR)
+
+CONFIG_SCHEMA = climate_ir.CLIMATE_IR_WITH_RECEIVER_SCHEMA.extend(
+    {
+        cv.GenerateID(): cv.declare_id(DelonghiClimate),
+    }
+)
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await climate_ir.register_climate_ir(var, config)

esphome/components/delonghi/delonghi.cpp

@@ -0,0 +1,186 @@
+#include "delonghi.h"
+#include "esphome/components/remote_base/remote_base.h"
+
+namespace esphome {
+namespace delonghi {
+
+static const char *const TAG = "delonghi.climate";
+
+void DelonghiClimate::transmit_state() {
+  uint8_t remote_state[DELONGHI_STATE_FRAME_SIZE] = {0};
+  remote_state[0] = DELONGHI_ADDRESS;
+  remote_state[1] = this->temperature_();
+  remote_state[1] |= (this->fan_speed_()) << 5;
+  remote_state[2] = this->operation_mode_();
+  // Calculate checksum
+  for (int i = 0; i < DELONGHI_STATE_FRAME_SIZE - 1; i++) {
+    remote_state[DELONGHI_STATE_FRAME_SIZE - 1] += remote_state[i];
+  }
+
+  auto transmit = this->transmitter_->transmit();
+  auto *data = transmit.get_data();
+  data->set_carrier_frequency(DELONGHI_IR_FREQUENCY);
+
+  data->mark(DELONGHI_HEADER_MARK);
+  data->space(DELONGHI_HEADER_SPACE);
+  for (unsigned char b : remote_state) {
+    for (uint8_t mask = 1; mask > 0; mask <<= 1) {  // iterate through bit mask
+      data->mark(DELONGHI_BIT_MARK);
+      bool bit = b & mask;
+      data->space(bit ? DELONGHI_ONE_SPACE : DELONGHI_ZERO_SPACE);
+    }
+  }
+  data->mark(DELONGHI_BIT_MARK);
+  data->space(0);
+
+  transmit.perform();
+}
+
+uint8_t DelonghiClimate::operation_mode_() {
+  uint8_t operating_mode = DELONGHI_MODE_ON;
+  switch (this->mode) {
+    case climate::CLIMATE_MODE_COOL:
+      operating_mode |= DELONGHI_MODE_COOL;
+      break;
+    case climate::CLIMATE_MODE_DRY:
+      operating_mode |= DELONGHI_MODE_DRY;
+      break;
+    case climate::CLIMATE_MODE_HEAT:
+      operating_mode |= DELONGHI_MODE_HEAT;
+      break;
+    case climate::CLIMATE_MODE_HEAT_COOL:
+      operating_mode |= DELONGHI_MODE_AUTO;
+      break;
+    case climate::CLIMATE_MODE_FAN_ONLY:
+      operating_mode |= DELONGHI_MODE_FAN;
+      break;
+    case climate::CLIMATE_MODE_OFF:
+    default:
+      operating_mode = DELONGHI_MODE_OFF;
+      break;
+  }
+  return operating_mode;
+}
+
+uint16_t DelonghiClimate::fan_speed_() {
+  uint16_t fan_speed;
+  switch (this->fan_mode.value()) {
+    case climate::CLIMATE_FAN_LOW:
+      fan_speed = DELONGHI_FAN_LOW;
+      break;
+    case climate::CLIMATE_FAN_MEDIUM:
+      fan_speed = DELONGHI_FAN_MEDIUM;
+      break;
+    case climate::CLIMATE_FAN_HIGH:
+      fan_speed = DELONGHI_FAN_HIGH;
+      break;
+    case climate::CLIMATE_FAN_AUTO:
+    default:
+      fan_speed = DELONGHI_FAN_AUTO;
+  }
+  return fan_speed;
+}
+
+uint8_t DelonghiClimate::temperature_() {
+  // Force special temperatures depending on the mode
+  uint8_t temperature = 0b0001;
+  switch (this->mode) {
+    case climate::CLIMATE_MODE_HEAT:
+      temperature = (uint8_t) roundf(this->target_temperature) - DELONGHI_TEMP_OFFSET_HEAT;
+      break;
+    case climate::CLIMATE_MODE_COOL:
+    case climate::CLIMATE_MODE_DRY:
+    case climate::CLIMATE_MODE_HEAT_COOL:
+    case climate::CLIMATE_MODE_FAN_ONLY:
+    case climate::CLIMATE_MODE_OFF:
+    default:
+      temperature = (uint8_t) roundf(this->target_temperature) - DELONGHI_TEMP_OFFSET_COOL;
+  }
+  if (temperature > 0x0F) {
+    temperature = 0x0F;  // clamp maximum
+  }
+  return temperature;
+}
+
+bool DelonghiClimate::parse_state_frame_(const uint8_t frame[]) {
+  uint8_t checksum = 0;
+  for (int i = 0; i < (DELONGHI_STATE_FRAME_SIZE - 1); i++) {
+    checksum += frame[i];
+  }
+  if (frame[DELONGHI_STATE_FRAME_SIZE - 1] != checksum) {
+    return false;
+  }
+  uint8_t mode = frame[2] & 0x0F;
+  if (mode & DELONGHI_MODE_ON) {
+    switch (mode & 0x0E) {
+      case DELONGHI_MODE_COOL:
+        this->mode = climate::CLIMATE_MODE_COOL;
+        break;
+      case DELONGHI_MODE_DRY:
+        this->mode = climate::CLIMATE_MODE_DRY;
+        break;
+      case DELONGHI_MODE_HEAT:
+        this->mode = climate::CLIMATE_MODE_HEAT;
+        break;
+      case DELONGHI_MODE_AUTO:
+        this->mode = climate::CLIMATE_MODE_HEAT_COOL;
+        break;
+      case DELONGHI_MODE_FAN:
+        this->mode = climate::CLIMATE_MODE_FAN_ONLY;
+        break;
+    }
+  } else {
+    this->mode = climate::CLIMATE_MODE_OFF;
+  }
+  uint8_t temperature = frame[1] & 0x0F;
+  if (this->mode == climate::CLIMATE_MODE_HEAT) {
+    this->target_temperature = temperature + DELONGHI_TEMP_OFFSET_HEAT;
+  } else {
+    this->target_temperature = temperature + DELONGHI_TEMP_OFFSET_COOL;
+  }
+  uint8_t fan_mode = frame[1] >> 5;
+  switch (fan_mode) {
+    case DELONGHI_FAN_LOW:
+      this->fan_mode = climate::CLIMATE_FAN_LOW;
+      break;
+    case DELONGHI_FAN_MEDIUM:
+      this->fan_mode = climate::CLIMATE_FAN_MEDIUM;
+      break;
+    case DELONGHI_FAN_HIGH:
+      this->fan_mode = climate::CLIMATE_FAN_HIGH;
+      break;
+    case DELONGHI_FAN_AUTO:
+      this->fan_mode = climate::CLIMATE_FAN_AUTO;
+      break;
+  }
+  this->publish_state();
+  return true;
+}
+
+bool DelonghiClimate::on_receive(remote_base::RemoteReceiveData data) {
+  uint8_t state_frame[DELONGHI_STATE_FRAME_SIZE] = {};
+  if (!data.expect_item(DELONGHI_HEADER_MARK, DELONGHI_HEADER_SPACE)) {
+    return false;
+  }
+  for (uint8_t pos = 0; pos < DELONGHI_STATE_FRAME_SIZE; pos++) {
+    uint8_t byte = 0;
+    for (int8_t bit = 0; bit < 8; bit++) {
+      if (data.expect_item(DELONGHI_BIT_MARK, DELONGHI_ONE_SPACE)) {
+        byte |= 1 << bit;
+      } else if (!data.expect_item(DELONGHI_BIT_MARK, DELONGHI_ZERO_SPACE)) {
+        return false;
+      }
+    }
+    state_frame[pos] = byte;
+    if (pos == 0) {
+      // frame header
+      if (byte != DELONGHI_ADDRESS) {
+        return false;
+      }
+    }
+  }
+  return this->parse_state_frame_(state_frame);
+}
+
+}  // namespace delonghi
+}  // namespace esphome

esphome/components/delonghi/delonghi.h

@@ -0,0 +1,64 @@
+#pragma once
+
+#include "esphome/components/climate_ir/climate_ir.h"
+
+namespace esphome {
+namespace delonghi {
+
+// Values for DELONGHI ARC43XXX IR Controllers
+const uint8_t DELONGHI_ADDRESS = 83;
+
+// Temperature
+const uint8_t DELONGHI_TEMP_MIN = 13;          // Celsius
+const uint8_t DELONGHI_TEMP_MAX = 32;          // Celsius
+const uint8_t DELONGHI_TEMP_OFFSET_COOL = 17;  // Celsius
+const uint8_t DELONGHI_TEMP_OFFSET_HEAT = 12;  // Celsius
+
+// Modes
+const uint8_t DELONGHI_MODE_AUTO = 0b1000;
+const uint8_t DELONGHI_MODE_COOL = 0b0000;
+const uint8_t DELONGHI_MODE_HEAT = 0b0110;
+const uint8_t DELONGHI_MODE_DRY = 0b0010;
+const uint8_t DELONGHI_MODE_FAN = 0b0100;
+const uint8_t DELONGHI_MODE_OFF = 0b0000;
+const uint8_t DELONGHI_MODE_ON = 0b0001;
+
+// Fan Speed
+const uint8_t DELONGHI_FAN_AUTO = 0b00;
+const uint8_t DELONGHI_FAN_HIGH = 0b01;
+const uint8_t DELONGHI_FAN_MEDIUM = 0b10;
+const uint8_t DELONGHI_FAN_LOW = 0b11;
+
+// IR Transmission - similar to NEC1
+const uint32_t DELONGHI_IR_FREQUENCY = 38000;
+const uint32_t DELONGHI_HEADER_MARK = 9000;
+const uint32_t DELONGHI_HEADER_SPACE = 4500;
+const uint32_t DELONGHI_BIT_MARK = 465;
+const uint32_t DELONGHI_ONE_SPACE = 1750;
+const uint32_t DELONGHI_ZERO_SPACE = 670;
+
+// State Frame size
+const uint8_t DELONGHI_STATE_FRAME_SIZE = 8;
+
+class DelonghiClimate : public climate_ir::ClimateIR {
+ public:
+  DelonghiClimate()
+      : climate_ir::ClimateIR(DELONGHI_TEMP_MIN, DELONGHI_TEMP_MAX, 1.0f, true, true,
+                              {climate::CLIMATE_FAN_AUTO, climate::CLIMATE_FAN_LOW, climate::CLIMATE_FAN_MEDIUM,
+                               climate::CLIMATE_FAN_HIGH},
+                              {climate::CLIMATE_SWING_OFF, climate::CLIMATE_SWING_VERTICAL,
+                               climate::CLIMATE_SWING_HORIZONTAL, climate::CLIMATE_SWING_BOTH}) {}
+
+ protected:
+  // Transmit via IR the state of this climate controller.
+  void transmit_state() override;
+  uint8_t operation_mode_();
+  uint16_t fan_speed_();
+  uint8_t temperature_();
+  // Handle received IR Buffer
+  bool on_receive(remote_base::RemoteReceiveData data) override;
+  bool parse_state_frame_(const uint8_t frame[]);
+};
+
+}  // namespace delonghi
+}  // namespace esphome

esphome/components/display/display_buffer.cpp

@@ -242,6 +242,13 @@ void DisplayBuffer::image(int x, int y, Image *image, Color color_on, Color colo
         }
       }
       break;
+    case IMAGE_TYPE_RGB565:
+      for (int img_x = 0; img_x < image->get_width(); img_x++) {
+        for (int img_y = 0; img_y < image->get_height(); img_y++) {
+          this->draw_pixel_at(x + img_x, y + img_y, image->get_rgb565_pixel(img_x, img_y));
+        }
+      }
+      break;
   }
 }
 
@@ -497,6 +504,17 @@ Color Image::get_color_pixel(int x, int y) const {
                            (progmem_read_byte(this->data_start_ + pos + 0) << 16);
   return Color(color32);
 }
+Color Image::get_rgb565_pixel(int x, int y) const {
+  if (x < 0 || x >= this->width_ || y < 0 || y >= this->height_)
+    return Color::BLACK;
+  const uint32_t pos = (x + y * this->width_) * 2;
+  uint16_t rgb565 =
+      progmem_read_byte(this->data_start_ + pos + 0) << 8 | progmem_read_byte(this->data_start_ + pos + 1);
+  auto r = (rgb565 & 0xF800) >> 11;
+  auto g = (rgb565 & 0x07E0) >> 5;
+  auto b = rgb565 & 0x001F;
+  return Color((r << 3) | (r >> 2), (g << 2) | (g >> 4), (b << 3) | (b >> 2));
+}
 Color Image::get_grayscale_pixel(int x, int y) const {
   if (x < 0 || x >= this->width_ || y < 0 || y >= this->height_)
     return Color::BLACK;
@@ -532,6 +550,20 @@ Color Animation::get_color_pixel(int x, int y) const {
                            (progmem_read_byte(this->data_start_ + pos + 0) << 16);
   return Color(color32);
 }
+Color Animation::get_rgb565_pixel(int x, int y) const {
+  if (x < 0 || x >= this->width_ || y < 0 || y >= this->height_)
+    return Color::BLACK;
+  const uint32_t frame_index = this->width_ * this->height_ * this->current_frame_;
+  if (frame_index >= (uint32_t)(this->width_ * this->height_ * this->animation_frame_count_))
+    return Color::BLACK;
+  const uint32_t pos = (x + y * this->width_ + frame_index) * 2;
+  uint16_t rgb565 =
+      progmem_read_byte(this->data_start_ + pos + 0) << 8 | progmem_read_byte(this->data_start_ + pos + 1);
+  auto r = (rgb565 & 0xF800) >> 11;
+  auto g = (rgb565 & 0x07E0) >> 5;
+  auto b = rgb565 & 0x001F;
+  return Color((r << 3) | (r >> 2), (g << 2) | (g >> 4), (b << 3) | (b >> 2));
+}
 Color Animation::get_grayscale_pixel(int x, int y) const {
   if (x < 0 || x >= this->width_ || y < 0 || y >= this->height_)
     return Color::BLACK;
@@ -552,6 +584,12 @@ void Animation::next_frame() {
     this->current_frame_ = 0;
   }
 }
+void Animation::prev_frame() {
+  this->current_frame_--;
+  if (this->current_frame_ < 0) {
+    this->current_frame_ = this->animation_frame_count_ - 1;
+  }
+}
 
 DisplayPage::DisplayPage(display_writer_t writer) : writer_(std::move(writer)) {}
 void DisplayPage::show() { this->parent_->show_page(this); }

esphome/components/display/display_buffer.h

@@ -82,6 +82,7 @@ enum ImageType {
   IMAGE_TYPE_GRAYSCALE = 1,
   IMAGE_TYPE_RGB24 = 2,
   IMAGE_TYPE_TRANSPARENT_BINARY = 3,
+  IMAGE_TYPE_RGB565 = 4,
 };
 
 enum DisplayRotation {
@@ -453,6 +454,7 @@ class Image {
   Image(const uint8_t *data_start, int width, int height, ImageType type);
   virtual bool get_pixel(int x, int y) const;
   virtual Color get_color_pixel(int x, int y) const;
+  virtual Color get_rgb565_pixel(int x, int y) const;
   virtual Color get_grayscale_pixel(int x, int y) const;
   int get_width() const;
   int get_height() const;
@@ -470,11 +472,13 @@ class Animation : public Image {
   Animation(const uint8_t *data_start, int width, int height, uint32_t animation_frame_count, ImageType type);
   bool get_pixel(int x, int y) const override;
   Color get_color_pixel(int x, int y) const override;
+  Color get_rgb565_pixel(int x, int y) const override;
   Color get_grayscale_pixel(int x, int y) const override;
 
   int get_animation_frame_count() const;
   int get_current_frame() const;
   void next_frame();
+  void prev_frame();
 
  protected:
   int current_frame_;

esphome/components/dsmr/sensor.py

@@ -143,37 +143,37 @@ CONFIG_SCHEMA = cv.Schema(
         cv.Optional("power_delivered_l1"): sensor.sensor_schema(
             unit_of_measurement=UNIT_KILOWATT,
             accuracy_decimals=3,
-            device_class=DEVICE_CLASS_CURRENT,
+            device_class=DEVICE_CLASS_POWER,
             state_class=STATE_CLASS_MEASUREMENT,
         ),
         cv.Optional("power_delivered_l2"): sensor.sensor_schema(
             unit_of_measurement=UNIT_KILOWATT,
             accuracy_decimals=3,
-            device_class=DEVICE_CLASS_CURRENT,
+            device_class=DEVICE_CLASS_POWER,
             state_class=STATE_CLASS_MEASUREMENT,
         ),
         cv.Optional("power_delivered_l3"): sensor.sensor_schema(
             unit_of_measurement=UNIT_KILOWATT,
             accuracy_decimals=3,
-            device_class=DEVICE_CLASS_CURRENT,
+            device_class=DEVICE_CLASS_POWER,
             state_class=STATE_CLASS_MEASUREMENT,
         ),
         cv.Optional("power_returned_l1"): sensor.sensor_schema(
             unit_of_measurement=UNIT_KILOWATT,
             accuracy_decimals=3,
-            device_class=DEVICE_CLASS_CURRENT,
+            device_class=DEVICE_CLASS_POWER,
             state_class=STATE_CLASS_MEASUREMENT,
         ),
         cv.Optional("power_returned_l2"): sensor.sensor_schema(
             unit_of_measurement=UNIT_KILOWATT,
             accuracy_decimals=3,
-            device_class=DEVICE_CLASS_CURRENT,
+            device_class=DEVICE_CLASS_POWER,
             state_class=STATE_CLASS_MEASUREMENT,
         ),
         cv.Optional("power_returned_l3"): sensor.sensor_schema(
             unit_of_measurement=UNIT_KILOWATT,
             accuracy_decimals=3,
-            device_class=DEVICE_CLASS_CURRENT,
+            device_class=DEVICE_CLASS_POWER,
             state_class=STATE_CLASS_MEASUREMENT,
         ),
         cv.Optional("reactive_power_delivered_l1"): sensor.sensor_schema(

esphome/components/endstop/endstop_cover.cpp

@@ -12,6 +12,7 @@ using namespace esphome::cover;
 CoverTraits EndstopCover::get_traits() {
   auto traits = CoverTraits();
   traits.set_supports_position(true);
+  traits.set_supports_toggle(true);
   traits.set_is_assumed_state(false);
   return traits;
 }
@@ -20,6 +21,20 @@ void EndstopCover::control(const CoverCall &call) {
     this->start_direction_(COVER_OPERATION_IDLE);
     this->publish_state();
   }
+  if (call.get_toggle().has_value()) {
+    if (this->current_operation != COVER_OPERATION_IDLE) {
+      this->start_direction_(COVER_OPERATION_IDLE);
+      this->publish_state();
+    } else {
+      if (this->position == COVER_CLOSED || this->last_operation_ == COVER_OPERATION_CLOSING) {
+        this->target_position_ = COVER_OPEN;
+        this->start_direction_(COVER_OPERATION_OPENING);
+      } else {
+        this->target_position_ = COVER_CLOSED;
+        this->start_direction_(COVER_OPERATION_CLOSING);
+      }
+    }
+  }
   if (call.get_position().has_value()) {
     auto pos = *call.get_position();
     if (pos == this->position) {
@@ -125,9 +140,11 @@ void EndstopCover::start_direction_(CoverOperation dir) {
       trig = this->stop_trigger_;
       break;
     case COVER_OPERATION_OPENING:
+      this->last_operation_ = dir;
       trig = this->open_trigger_;
       break;
     case COVER_OPERATION_CLOSING:
+      this->last_operation_ = dir;
       trig = this->close_trigger_;
       break;
     default:

esphome/components/endstop/endstop_cover.h

@@ -51,6 +51,7 @@ class EndstopCover : public cover::Cover, public Component {
   uint32_t start_dir_time_{0};
   uint32_t last_publish_time_{0};
   float target_position_{0};
+  cover::CoverOperation last_operation_{cover::COVER_OPERATION_OPENING};
 };
 
 }  // namespace endstop

esphome/components/ens210/ens210.cpp

@@ -0,0 +1,230 @@
+// ENS210 relative humidity and temperature sensor with I2C interface from ScioSense
+//
+// Datasheet: https://www.sciosense.com/wp-content/uploads/2021/01/ENS210.pdf
+//
+// Implementation based on:
+//   https://github.com/maarten-pennings/ENS210
+//   https://github.com/sciosense/ENS210_driver
+
+#include "ens210.h"
+#include "esphome/core/log.h"
+#include "esphome/core/hal.h"
+
+namespace esphome {
+namespace ens210 {
+
+static const char *const TAG = "ens210";
+
+// ENS210 chip constants
+static const uint8_t ENS210_BOOTING_MS = 2;  // Booting time in ms (also after reset, or going to high power)
+static const uint8_t ENS210_SINGLE_MEASURMENT_CONVERSION_TIME_MS =
+    130;                                        // Conversion time in ms for single shot T/H measurement
+static const uint16_t ENS210_PART_ID = 0x0210;  // The expected part id of the ENS210
+
+// Addresses of the ENS210 registers
+static const uint8_t ENS210_REGISTER_PART_ID = 0x00;
+static const uint8_t ENS210_REGISTER_UID = 0x04;
+static const uint8_t ENS210_REGISTER_SYS_CTRL = 0x10;
+static const uint8_t ENS210_REGISTER_SYS_STAT = 0x11;
+static const uint8_t ENS210_REGISTER_SENS_RUN = 0x21;
+static const uint8_t ENS210_REGISTER_SENS_START = 0x22;
+static const uint8_t ENS210_REGISTER_SENS_STOP = 0x23;
+static const uint8_t ENS210_REGISTER_SENS_STAT = 0x24;
+static const uint8_t ENS210_REGISTER_T_VAL = 0x30;
+static const uint8_t ENS210_REGISTER_H_VAL = 0x33;
+
+// CRC-7 constants
+static const uint8_t CRC7_WIDTH = 7;    // A 7 bits CRC has polynomial of 7th order, which has 8 terms
+static const uint8_t CRC7_POLY = 0x89;  // The 8 coefficients of the polynomial
+static const uint8_t CRC7_IVEC = 0x7F;  // Initial vector has all 7 bits high
+
+// Payload data constants
+static const uint8_t DATA7_WIDTH = 17;
+static const uint32_t DATA7_MASK = ((1UL << DATA7_WIDTH) - 1);  // 0b 0 1111 1111 1111 1111
+static const uint32_t DATA7_MSB = (1UL << (DATA7_WIDTH - 1));   // 0b 1 0000 0000 0000 0000
+
+// Converts a status to a human readable string
+static const LogString *ens210_status_to_human(int status) {
+  switch (status) {
+    case ENS210Component::ENS210_STATUS_I2C_ERROR:
+      return LOG_STR("I2C error - communication with ENS210 failed!");
+    case ENS210Component::ENS210_STATUS_CRC_ERROR:
+      return LOG_STR("CRC error");
+    case ENS210Component::ENS210_STATUS_INVALID:
+      return LOG_STR("Invalid data");
+    case ENS210Component::ENS210_STATUS_OK:
+      return LOG_STR("Status OK");
+    case ENS210Component::ENS210_WRONG_CHIP_ID:
+      return LOG_STR("ENS210 has wrong chip ID! Is it a ENS210?");
+    default:
+      return LOG_STR("Unknown");
+  }
+}
+
+// Compute the CRC-7 of 'value' (should only have 17 bits)
+// https://en.wikipedia.org/wiki/Cyclic_redundancy_check#Computation
+static uint32_t crc7(uint32_t value) {
+  // Setup polynomial
+  uint32_t polynomial = CRC7_POLY;
+  // Align polynomial with data
+  polynomial = polynomial << (DATA7_WIDTH - CRC7_WIDTH - 1);
+  // Loop variable (indicates which bit to test, start with highest)
+  uint32_t bit = DATA7_MSB;
+  // Make room for CRC value
+  value = value << CRC7_WIDTH;
+  bit = bit << CRC7_WIDTH;
+  polynomial = polynomial << CRC7_WIDTH;
+  // Insert initial vector
+  value |= CRC7_IVEC;
+  // Apply division until all bits done
+  while (bit & (DATA7_MASK << CRC7_WIDTH)) {
+    if (bit & value)
+      value ^= polynomial;
+    bit >>= 1;
+    polynomial >>= 1;
+  }
+  return value;
+}
+
+void ENS210Component::setup() {
+  ESP_LOGCONFIG(TAG, "Setting up ENS210...");
+  uint8_t data[2];
+  uint16_t part_id = 0;
+  // Reset
+  if (!this->write_byte(ENS210_REGISTER_SYS_CTRL, 0x80)) {
+    this->write_byte(ENS210_REGISTER_SYS_CTRL, 0x80);
+    this->error_code_ = ENS210_STATUS_I2C_ERROR;
+    this->mark_failed();
+    return;
+  }
+  // Wait to boot after reset
+  delay(ENS210_BOOTING_MS);
+  // Must disable low power to read PART_ID
+  if (!set_low_power_(false)) {
+    // Try to go back to default mode (low power enabled)
+    set_low_power_(true);
+    this->error_code_ = ENS210_STATUS_I2C_ERROR;
+    this->mark_failed();
+    return;
+  }
+  // Read the PART_ID
+  if (!this->read_bytes(ENS210_REGISTER_PART_ID, data, 2)) {
+    // Try to go back to default mode (low power enabled)
+    set_low_power_(true);
+    this->error_code_ = ENS210_STATUS_I2C_ERROR;
+    this->mark_failed();
+    return;
+  }
+  // Pack bytes into partid
+  part_id = data[1] * 256U + data[0] * 1U;
+  // Check expected part id of the ENS210
+  if (part_id != ENS210_PART_ID) {
+    this->error_code_ = ENS210_WRONG_CHIP_ID;
+    this->mark_failed();
+  }
+  // Set default power mode (low power enabled)
+  set_low_power_(true);
+}
+
+void ENS210Component::dump_config() {
+  ESP_LOGCONFIG(TAG, "ENS210:");
+  LOG_I2C_DEVICE(this);
+  if (this->is_failed()) {
+    ESP_LOGE(TAG, "%s", LOG_STR_ARG(ens210_status_to_human(this->error_code_)));
+  }
+  LOG_UPDATE_INTERVAL(this);
+  LOG_SENSOR("  ", "Temperature", this->temperature_sensor_);
+  LOG_SENSOR("  ", "Humidity", this->humidity_sensor_);
+}
+
+float ENS210Component::get_setup_priority() const { return setup_priority::DATA; }
+
+void ENS210Component::update() {
+  // Execute a single measurement
+  if (!this->write_byte(ENS210_REGISTER_SENS_RUN, 0x00)) {
+    ESP_LOGE(TAG, "Starting single measurement failed!");
+    this->status_set_warning();
+    return;
+  }
+  // Trigger measurement
+  if (!this->write_byte(ENS210_REGISTER_SENS_START, 0x03)) {
+    ESP_LOGE(TAG, "Trigger of measurement failed!");
+    this->status_set_warning();
+    return;
+  }
+  // Wait for measurement to complete
+  this->set_timeout("data", uint32_t(ENS210_SINGLE_MEASURMENT_CONVERSION_TIME_MS), [this]() {
+    int temperature_data, temperature_status, humidity_data, humidity_status;
+    uint8_t data[6];
+    uint32_t h_val_data, t_val_data;
+    // Set default status for early bail out
+    temperature_status = ENS210_STATUS_I2C_ERROR;
+    humidity_status = ENS210_STATUS_I2C_ERROR;
+
+    // Read T_VAL and H_VAL
+    if (!this->read_bytes(ENS210_REGISTER_T_VAL, data, 6)) {
+      ESP_LOGE(TAG, "Communication with ENS210 failed!");
+      this->status_set_warning();
+      return;
+    }
+    // Pack bytes for humidity
+    h_val_data = (uint32_t)((uint32_t) data[5] << 16 | (uint32_t) data[4] << 8 | (uint32_t) data[3]);
+    // Extract humidity data and update the status
+    extract_measurement_(h_val_data, &humidity_data, &humidity_status);
+
+    if (humidity_status == ENS210_STATUS_OK) {
+      if (this->humidity_sensor_ != nullptr) {
+        float humidity = (humidity_data & 0xFFFF) / 512.0;
+        this->humidity_sensor_->publish_state(humidity);
+      }
+    } else {
+      ESP_LOGW(TAG, "Humidity status failure: %s", LOG_STR_ARG(ens210_status_to_human(humidity_status)));
+      this->status_set_warning();
+      return;
+    }
+    // Pack bytes for temperature
+    t_val_data = (uint32_t)((uint32_t) data[2] << 16 | (uint32_t) data[1] << 8 | (uint32_t) data[0]);
+    // Extract temperature data and update the status
+    extract_measurement_(t_val_data, &temperature_data, &temperature_status);
+
+    if (temperature_status == ENS210_STATUS_OK) {
+      if (this->temperature_sensor_ != nullptr) {
+        // Temperature in Celsius
+        float temperature = (temperature_data & 0xFFFF) / 64.0 - 27315L / 100.0;
+        this->temperature_sensor_->publish_state(temperature);
+      }
+    } else {
+      ESP_LOGW(TAG, "Temperature status failure: %s", LOG_STR_ARG(ens210_status_to_human(temperature_status)));
+    }
+  });
+}
+
+// Extracts measurement 'data' and 'status' from a 'val' obtained from measurment.
+void ENS210Component::extract_measurement_(uint32_t val, int *data, int *status) {
+  *data = (val >> 0) & 0xffff;
+  int valid = (val >> 16) & 0x1;
+  uint32_t crc = (val >> 17) & 0x7f;
+  uint32_t payload = (val >> 0) & 0x1ffff;
+  // Check CRC
+  uint8_t crc_ok = crc7(payload) == crc;
+
+  if (!crc_ok) {
+    *status = ENS210_STATUS_CRC_ERROR;
+  } else if (!valid) {
+    *status = ENS210_STATUS_INVALID;
+  } else {
+    *status = ENS210_STATUS_OK;
+  }
+}
+
+// Sets ENS210 to low (true) or high (false) power. Returns false on I2C problems.
+bool ENS210Component::set_low_power_(bool enable) {
+  uint8_t low_power_cmd = enable ? 0x01 : 0x00;
+  ESP_LOGD(TAG, "Enable low power: %s", enable ? "true" : "false");
+  bool result = this->write_byte(ENS210_REGISTER_SYS_CTRL, low_power_cmd);
+  delay(ENS210_BOOTING_MS);
+  return result;
+}
+
+}  // namespace ens210
+}  // namespace esphome

esphome/components/ens210/ens210.h

@@ -0,0 +1,39 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/sensor/sensor.h"
+#include "esphome/components/i2c/i2c.h"
+
+namespace esphome {
+namespace ens210 {
+
+/// This class implements support for the ENS210 relative humidity and temperature i2c sensor.
+class ENS210Component : public PollingComponent, public i2c::I2CDevice {
+ public:
+  float get_setup_priority() const override;
+  void dump_config() override;
+  void setup() override;
+  void update() override;
+
+  void set_humidity_sensor(sensor::Sensor *humidity_sensor) { humidity_sensor_ = humidity_sensor; }
+  void set_temperature_sensor(sensor::Sensor *temperature_sensor) { temperature_sensor_ = temperature_sensor; }
+
+  enum ErrorCode {
+    ENS210_STATUS_OK = 0,     // The value was read, the CRC matches, and data is valid
+    ENS210_STATUS_INVALID,    // The value was read, the CRC matches, but the data is invalid (e.g. the measurement was
+                              // not yet finished)
+    ENS210_STATUS_CRC_ERROR,  // The value was read, but the CRC over the payload (valid and data) does not match
+    ENS210_STATUS_I2C_ERROR,  // There was an I2C communication error
+    ENS210_WRONG_CHIP_ID      // The read PART_ID is not the expected part id of the ENS210
+  } error_code_{ENS210_STATUS_OK};
+
+ protected:
+  bool set_low_power_(bool enable);
+  void extract_measurement_(uint32_t val, int *data, int *status);
+
+  sensor::Sensor *temperature_sensor_;
+  sensor::Sensor *humidity_sensor_;
+};
+
+}  // namespace ens210
+}  // namespace esphome

esphome/components/ens210/sensor.py

@@ -0,0 +1,58 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import i2c, sensor
+from esphome.const import (
+    CONF_HUMIDITY,
+    CONF_ID,
+    CONF_TEMPERATURE,
+    DEVICE_CLASS_HUMIDITY,
+    DEVICE_CLASS_TEMPERATURE,
+    STATE_CLASS_MEASUREMENT,
+    UNIT_CELSIUS,
+    UNIT_PERCENT,
+)
+
+CODEOWNERS = ["@itn3rd77"]
+DEPENDENCIES = ["i2c"]
+
+ens210_ns = cg.esphome_ns.namespace("ens210")
+
+ENS210Component = ens210_ns.class_(
+    "ENS210Component", cg.PollingComponent, i2c.I2CDevice
+)
+
+CONFIG_SCHEMA = (
+    cv.Schema(
+        {
+            cv.GenerateID(): cv.declare_id(ENS210Component),
+            cv.Optional(CONF_TEMPERATURE): sensor.sensor_schema(
+                unit_of_measurement=UNIT_CELSIUS,
+                accuracy_decimals=1,
+                device_class=DEVICE_CLASS_TEMPERATURE,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_HUMIDITY): sensor.sensor_schema(
+                unit_of_measurement=UNIT_PERCENT,
+                accuracy_decimals=1,
+                device_class=DEVICE_CLASS_HUMIDITY,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+        }
+    )
+    .extend(cv.polling_component_schema("60s"))
+    .extend(i2c.i2c_device_schema(0x43))
+)
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await cg.register_component(var, config)
+    await i2c.register_i2c_device(var, config)
+
+    if CONF_TEMPERATURE in config:
+        sens = await sensor.new_sensor(config[CONF_TEMPERATURE])
+        cg.add(var.set_temperature_sensor(sens))
+
+    if CONF_HUMIDITY in config:
+        sens = await sensor.new_sensor(config[CONF_HUMIDITY])
+        cg.add(var.set_humidity_sensor(sens))

esphome/components/esp32/gpio.py

@@ -107,7 +107,7 @@ def validate_gpio_pin(value):
     value = _translate_pin(value)
     variant = CORE.data[KEY_ESP32][KEY_VARIANT]
     if variant not in _esp32_validations:
-        raise cv.Invalid("Unsupported ESP32 variant {variant}")
+        raise cv.Invalid(f"Unsupported ESP32 variant {variant}")
 
     return _esp32_validations[variant].pin_validation(value)
 
@@ -121,7 +121,7 @@ def validate_supports(value):
     is_pulldown = mode[CONF_PULLDOWN]
     variant = CORE.data[KEY_ESP32][KEY_VARIANT]
     if variant not in _esp32_validations:
-        raise cv.Invalid("Unsupported ESP32 variant {variant}")
+        raise cv.Invalid(f"Unsupported ESP32 variant {variant}")
 
     if is_open_drain and not is_output:
         raise cv.Invalid(

esphome/components/esp32_ble_tracker/esp32_ble_tracker.cpp

@@ -262,6 +262,9 @@ void ESP32BLETracker::real_gap_event_handler_(esp_gap_ble_cb_event_t event, esp_
     default:
       break;
   }
+  for (auto *client : global_esp32_ble_tracker->clients_) {
+    client->gap_event_handler(event, param);
+  }
 }
 
 void ESP32BLETracker::gap_scan_set_param_complete_(const esp_ble_gap_cb_param_t::ble_scan_param_cmpl_evt_param &param) {

esphome/components/esp32_ble_tracker/esp32_ble_tracker.h

@@ -155,6 +155,7 @@ class ESPBTClient : public ESPBTDeviceListener {
  public:
   virtual void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
                                    esp_ble_gattc_cb_param_t *param) = 0;
+  virtual void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param) = 0;
   virtual void connect() = 0;
   void set_state(ClientState st) { this->state_ = st; }
   ClientState state() const { return state_; }

esphome/components/esp8266/__init__.py

@@ -19,6 +19,7 @@ from esphome.helpers import copy_file_if_changed
 
 from .const import (
     CONF_RESTORE_FROM_FLASH,
+    CONF_EARLY_PIN_INIT,
     KEY_BOARD,
     KEY_ESP8266,
     KEY_PIN_INITIAL_STATES,
@@ -148,6 +149,7 @@ CONFIG_SCHEMA = cv.All(
             cv.Required(CONF_BOARD): cv.string_strict,
             cv.Optional(CONF_FRAMEWORK, default={}): ARDUINO_FRAMEWORK_SCHEMA,
             cv.Optional(CONF_RESTORE_FROM_FLASH, default=False): cv.boolean,
+            cv.Optional(CONF_EARLY_PIN_INIT, default=True): cv.boolean,
             cv.Optional(CONF_BOARD_FLASH_MODE, default="dout"): cv.one_of(
                 *BUILD_FLASH_MODES, lower=True
             ),
@@ -197,6 +199,9 @@ async def to_code(config):
     if config[CONF_RESTORE_FROM_FLASH]:
         cg.add_define("USE_ESP8266_PREFERENCES_FLASH")
 
+    if config[CONF_EARLY_PIN_INIT]:
+        cg.add_define("USE_ESP8266_EARLY_PIN_INIT")
+
     # Arduino 2 has a non-standards conformant new that returns a nullptr instead of failing when
     # out of memory and exceptions are disabled. Since Arduino 2.6.0, this flag can be used to make
     # new abort instead. Use it so that OOM fails early (on allocation) instead of on dereference of

esphome/components/esp8266/const.py

@@ -4,6 +4,7 @@ KEY_ESP8266 = "esp8266"
 KEY_BOARD = "board"
 KEY_PIN_INITIAL_STATES = "pin_initial_states"
 CONF_RESTORE_FROM_FLASH = "restore_from_flash"
+CONF_EARLY_PIN_INIT = "early_pin_init"
 
 # esp8266 namespace is already defined by arduino, manually prefix esphome
 esp8266_ns = cg.global_ns.namespace("esphome").namespace("esp8266")

esphome/components/esp8266/core.cpp

@@ -1,6 +1,7 @@
 #ifdef USE_ESP8266
 
 #include "core.h"
+#include "esphome/core/defines.h"
 #include "esphome/core/hal.h"
 #include "esphome/core/helpers.h"
 #include "preferences.h"
@@ -55,6 +56,7 @@ extern "C" void resetPins() {  // NOLINT
   // ourselves and this causes pins to toggle during reboot.
   force_link_symbols();
 
+#ifdef USE_ESP8266_EARLY_PIN_INIT
   for (int i = 0; i < 16; i++) {
     uint8_t mode = ESPHOME_ESP8266_GPIO_INITIAL_MODE[i];
     uint8_t level = ESPHOME_ESP8266_GPIO_INITIAL_LEVEL[i];
@@ -63,6 +65,7 @@ extern "C" void resetPins() {  // NOLINT
     if (level != 255)
       digitalWrite(i, level);  // NOLINT
   }
+#endif
 }
 
 }  // namespace esphome

esphome/components/font/__init__.py

@@ -1,12 +1,29 @@
 import functools
+from pathlib import Path
+import hashlib
+import re
+
+import requests
 
 from esphome import core
 from esphome.components import display
 import esphome.config_validation as cv
 import esphome.codegen as cg
-from esphome.const import CONF_FILE, CONF_GLYPHS, CONF_ID, CONF_RAW_DATA_ID, CONF_SIZE
+from esphome.const import (
+    CONF_FAMILY,
+    CONF_FILE,
+    CONF_GLYPHS,
+    CONF_ID,
+    CONF_RAW_DATA_ID,
+    CONF_TYPE,
+    CONF_SIZE,
+    CONF_PATH,
+    CONF_WEIGHT,
+)
 from esphome.core import CORE, HexInt
 
+
+DOMAIN = "font"
 DEPENDENCIES = ["display"]
 MULTI_CONF = True
 
@@ -71,6 +88,128 @@ def validate_truetype_file(value):
     return cv.file_(value)
 
 
+def _compute_gfonts_local_path(value) -> Path:
+    name = f"{value[CONF_FAMILY]}@{value[CONF_WEIGHT]}@{value[CONF_ITALIC]}@v1"
+    base_dir = Path(CORE.config_dir) / ".esphome" / DOMAIN
+    h = hashlib.new("sha256")
+    h.update(name.encode())
+    return base_dir / h.hexdigest()[:8] / "font.ttf"
+
+
+TYPE_LOCAL = "local"
+TYPE_GFONTS = "gfonts"
+LOCAL_SCHEMA = cv.Schema(
+    {
+        cv.Required(CONF_PATH): validate_truetype_file,
+    }
+)
+CONF_ITALIC = "italic"
+FONT_WEIGHTS = {
+    "thin": 100,
+    "extra-light": 200,
+    "light": 300,
+    "regular": 400,
+    "medium": 500,
+    "semi-bold": 600,
+    "bold": 700,
+    "extra-bold": 800,
+    "black": 900,
+}
+
+
+def validate_weight_name(value):
+    return FONT_WEIGHTS[cv.one_of(*FONT_WEIGHTS, lower=True, space="-")(value)]
+
+
+def download_gfonts(value):
+    wght = value[CONF_WEIGHT]
+    if value[CONF_ITALIC]:
+        wght = f"1,{wght}"
+    name = f"{value[CONF_FAMILY]}@{value[CONF_WEIGHT]}"
+    url = f"https://fonts.googleapis.com/css2?family={value[CONF_FAMILY]}:wght@{wght}"
+
+    path = _compute_gfonts_local_path(value)
+    if path.is_file():
+        return value
+    try:
+        req = requests.get(url)
+        req.raise_for_status()
+    except requests.exceptions.RequestException as e:
+        raise cv.Invalid(
+            f"Could not download font for {name}, please check the fonts exists "
+            f"at google fonts ({e})"
+        )
+    match = re.search(r"src:\s+url\((.+)\)\s+format\('truetype'\);", req.text)
+    if match is None:
+        raise cv.Invalid(
+            f"Could not extract ttf file from gfonts response for {name}, "
+            f"please report this."
+        )
+
+    ttf_url = match.group(1)
+    try:
+        req = requests.get(ttf_url)
+        req.raise_for_status()
+    except requests.exceptions.RequestException as e:
+        raise cv.Invalid(f"Could not download ttf file for {name} ({ttf_url}): {e}")
+
+    path.parent.mkdir(exist_ok=True, parents=True)
+    path.write_bytes(req.content)
+    return value
+
+
+GFONTS_SCHEMA = cv.All(
+    {
+        cv.Required(CONF_FAMILY): cv.string_strict,
+        cv.Optional(CONF_WEIGHT, default="regular"): cv.Any(
+            cv.int_, validate_weight_name
+        ),
+        cv.Optional(CONF_ITALIC, default=False): cv.boolean,
+    },
+    download_gfonts,
+)
+
+
+def validate_file_shorthand(value):
+    value = cv.string_strict(value)
+    if value.startswith("gfonts://"):
+        match = re.match(r"^gfonts://([^@]+)(@.+)?$", value)
+        if match is None:
+            raise cv.Invalid("Could not parse gfonts shorthand syntax, please check it")
+        family = match.group(1)
+        weight = match.group(2)
+        data = {
+            CONF_TYPE: TYPE_GFONTS,
+            CONF_FAMILY: family,
+        }
+        if weight is not None:
+            data[CONF_WEIGHT] = weight[1:]
+        return FILE_SCHEMA(data)
+    return FILE_SCHEMA(
+        {
+            CONF_TYPE: TYPE_LOCAL,
+            CONF_PATH: value,
+        }
+    )
+
+
+TYPED_FILE_SCHEMA = cv.typed_schema(
+    {
+        TYPE_LOCAL: LOCAL_SCHEMA,
+        TYPE_GFONTS: GFONTS_SCHEMA,
+    }
+)
+
+
+def _file_schema(value):
+    if isinstance(value, str):
+        return validate_file_shorthand(value)
+    return TYPED_FILE_SCHEMA(value)
+
+
+FILE_SCHEMA = cv.Schema(_file_schema)
+
+
 DEFAULT_GLYPHS = (
     ' !"%()+=,-.:/0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz°'
 )
@@ -79,7 +218,7 @@ CONF_RAW_GLYPH_ID = "raw_glyph_id"
 FONT_SCHEMA = cv.Schema(
     {
         cv.Required(CONF_ID): cv.declare_id(Font),
-        cv.Required(CONF_FILE): validate_truetype_file,
+        cv.Required(CONF_FILE): FILE_SCHEMA,
         cv.Optional(CONF_GLYPHS, default=DEFAULT_GLYPHS): validate_glyphs,
         cv.Optional(CONF_SIZE, default=20): cv.int_range(min=1),
         cv.GenerateID(CONF_RAW_DATA_ID): cv.declare_id(cg.uint8),
@@ -93,9 +232,13 @@ CONFIG_SCHEMA = cv.All(validate_pillow_installed, FONT_SCHEMA)
 async def to_code(config):
     from PIL import ImageFont
 
-    path = CORE.relative_config_path(config[CONF_FILE])
+    conf = config[CONF_FILE]
+    if conf[CONF_TYPE] == TYPE_LOCAL:
+        path = CORE.relative_config_path(conf[CONF_PATH])
+    elif conf[CONF_TYPE] == TYPE_GFONTS:
+        path = _compute_gfonts_local_path(conf)
     try:
-        font = ImageFont.truetype(path, config[CONF_SIZE])
+        font = ImageFont.truetype(str(path), config[CONF_SIZE])
     except Exception as e:
         raise core.EsphomeError(f"Could not load truetype file {path}: {e}")
 

esphome/components/growatt_solar/growatt_solar.cpp

@@ -7,9 +7,11 @@ namespace growatt_solar {
 static const char *const TAG = "growatt_solar";
 
 static const uint8_t MODBUS_CMD_READ_IN_REGISTERS = 0x04;
-static const uint8_t MODBUS_REGISTER_COUNT = 33;
+static const uint8_t MODBUS_REGISTER_COUNT[] = {33, 95};  // indexed with enum GrowattProtocolVersion
 
-void GrowattSolar::update() { this->send(MODBUS_CMD_READ_IN_REGISTERS, 0, MODBUS_REGISTER_COUNT); }
+void GrowattSolar::update() {
+  this->send(MODBUS_CMD_READ_IN_REGISTERS, 0, MODBUS_REGISTER_COUNT[this->protocol_version_]);
+}
 
 void GrowattSolar::on_modbus_data(const std::vector<uint8_t> &data) {
   auto publish_1_reg_sensor_state = [&](sensor::Sensor *sensor, size_t i, float unit) -> void {
@@ -27,37 +29,76 @@ void GrowattSolar::on_modbus_data(const std::vector<uint8_t> &data) {
       sensor->publish_state(value);
   };
 
-  publish_1_reg_sensor_state(this->inverter_status_, 0, 1);
+  switch (this->protocol_version_) {
+    case RTU: {
+      publish_1_reg_sensor_state(this->inverter_status_, 0, 1);
 
-  publish_2_reg_sensor_state(this->pv_active_power_sensor_, 1, 2, ONE_DEC_UNIT);
+      publish_2_reg_sensor_state(this->pv_active_power_sensor_, 1, 2, ONE_DEC_UNIT);
 
-  publish_1_reg_sensor_state(this->pvs_[0].voltage_sensor_, 3, ONE_DEC_UNIT);
-  publish_1_reg_sensor_state(this->pvs_[0].current_sensor_, 4, ONE_DEC_UNIT);
-  publish_2_reg_sensor_state(this->pvs_[0].active_power_sensor_, 5, 6, ONE_DEC_UNIT);
+      publish_1_reg_sensor_state(this->pvs_[0].voltage_sensor_, 3, ONE_DEC_UNIT);
+      publish_1_reg_sensor_state(this->pvs_[0].current_sensor_, 4, ONE_DEC_UNIT);
+      publish_2_reg_sensor_state(this->pvs_[0].active_power_sensor_, 5, 6, ONE_DEC_UNIT);
 
-  publish_1_reg_sensor_state(this->pvs_[1].voltage_sensor_, 7, ONE_DEC_UNIT);
-  publish_1_reg_sensor_state(this->pvs_[1].current_sensor_, 8, ONE_DEC_UNIT);
-  publish_2_reg_sensor_state(this->pvs_[1].active_power_sensor_, 9, 10, ONE_DEC_UNIT);
+      publish_1_reg_sensor_state(this->pvs_[1].voltage_sensor_, 7, ONE_DEC_UNIT);
+      publish_1_reg_sensor_state(this->pvs_[1].current_sensor_, 8, ONE_DEC_UNIT);
+      publish_2_reg_sensor_state(this->pvs_[1].active_power_sensor_, 9, 10, ONE_DEC_UNIT);
 
-  publish_2_reg_sensor_state(this->grid_active_power_sensor_, 11, 12, ONE_DEC_UNIT);
-  publish_1_reg_sensor_state(this->grid_frequency_sensor_, 13, TWO_DEC_UNIT);
+      publish_2_reg_sensor_state(this->grid_active_power_sensor_, 11, 12, ONE_DEC_UNIT);
+      publish_1_reg_sensor_state(this->grid_frequency_sensor_, 13, TWO_DEC_UNIT);
 
-  publish_1_reg_sensor_state(this->phases_[0].voltage_sensor_, 14, ONE_DEC_UNIT);
-  publish_1_reg_sensor_state(this->phases_[0].current_sensor_, 15, ONE_DEC_UNIT);
-  publish_2_reg_sensor_state(this->phases_[0].active_power_sensor_, 16, 17, ONE_DEC_UNIT);
+      publish_1_reg_sensor_state(this->phases_[0].voltage_sensor_, 14, ONE_DEC_UNIT);
+      publish_1_reg_sensor_state(this->phases_[0].current_sensor_, 15, ONE_DEC_UNIT);
+      publish_2_reg_sensor_state(this->phases_[0].active_power_sensor_, 16, 17, ONE_DEC_UNIT);
 
-  publish_1_reg_sensor_state(this->phases_[1].voltage_sensor_, 18, ONE_DEC_UNIT);
-  publish_1_reg_sensor_state(this->phases_[1].current_sensor_, 19, ONE_DEC_UNIT);
-  publish_2_reg_sensor_state(this->phases_[1].active_power_sensor_, 20, 21, ONE_DEC_UNIT);
+      publish_1_reg_sensor_state(this->phases_[1].voltage_sensor_, 18, ONE_DEC_UNIT);
+      publish_1_reg_sensor_state(this->phases_[1].current_sensor_, 19, ONE_DEC_UNIT);
+      publish_2_reg_sensor_state(this->phases_[1].active_power_sensor_, 20, 21, ONE_DEC_UNIT);
 
-  publish_1_reg_sensor_state(this->phases_[2].voltage_sensor_, 22, ONE_DEC_UNIT);
-  publish_1_reg_sensor_state(this->phases_[2].current_sensor_, 23, ONE_DEC_UNIT);
-  publish_2_reg_sensor_state(this->phases_[2].active_power_sensor_, 24, 25, ONE_DEC_UNIT);
+      publish_1_reg_sensor_state(this->phases_[2].voltage_sensor_, 22, ONE_DEC_UNIT);
+      publish_1_reg_sensor_state(this->phases_[2].current_sensor_, 23, ONE_DEC_UNIT);
+      publish_2_reg_sensor_state(this->phases_[2].active_power_sensor_, 24, 25, ONE_DEC_UNIT);
 
-  publish_2_reg_sensor_state(this->today_production_, 26, 27, ONE_DEC_UNIT);
-  publish_2_reg_sensor_state(this->total_energy_production_, 28, 29, ONE_DEC_UNIT);
+      publish_2_reg_sensor_state(this->today_production_, 26, 27, ONE_DEC_UNIT);
+      publish_2_reg_sensor_state(this->total_energy_production_, 28, 29, ONE_DEC_UNIT);
 
-  publish_1_reg_sensor_state(this->inverter_module_temp_, 32, ONE_DEC_UNIT);
+      publish_1_reg_sensor_state(this->inverter_module_temp_, 32, ONE_DEC_UNIT);
+      break;
+    }
+    case RTU2: {
+      publish_1_reg_sensor_state(this->inverter_status_, 0, 1);
+
+      publish_2_reg_sensor_state(this->pv_active_power_sensor_, 1, 2, ONE_DEC_UNIT);
+
+      publish_1_reg_sensor_state(this->pvs_[0].voltage_sensor_, 3, ONE_DEC_UNIT);
+      publish_1_reg_sensor_state(this->pvs_[0].current_sensor_, 4, ONE_DEC_UNIT);
+      publish_2_reg_sensor_state(this->pvs_[0].active_power_sensor_, 5, 6, ONE_DEC_UNIT);
+
+      publish_1_reg_sensor_state(this->pvs_[1].voltage_sensor_, 7, ONE_DEC_UNIT);
+      publish_1_reg_sensor_state(this->pvs_[1].current_sensor_, 8, ONE_DEC_UNIT);
+      publish_2_reg_sensor_state(this->pvs_[1].active_power_sensor_, 9, 10, ONE_DEC_UNIT);
+
+      publish_2_reg_sensor_state(this->grid_active_power_sensor_, 35, 36, ONE_DEC_UNIT);
+      publish_1_reg_sensor_state(this->grid_frequency_sensor_, 37, TWO_DEC_UNIT);
+
+      publish_1_reg_sensor_state(this->phases_[0].voltage_sensor_, 38, ONE_DEC_UNIT);
+      publish_1_reg_sensor_state(this->phases_[0].current_sensor_, 39, ONE_DEC_UNIT);
+      publish_2_reg_sensor_state(this->phases_[0].active_power_sensor_, 40, 41, ONE_DEC_UNIT);
+
+      publish_1_reg_sensor_state(this->phases_[1].voltage_sensor_, 42, ONE_DEC_UNIT);
+      publish_1_reg_sensor_state(this->phases_[1].current_sensor_, 43, ONE_DEC_UNIT);
+      publish_2_reg_sensor_state(this->phases_[1].active_power_sensor_, 44, 45, ONE_DEC_UNIT);
+
+      publish_1_reg_sensor_state(this->phases_[2].voltage_sensor_, 46, ONE_DEC_UNIT);
+      publish_1_reg_sensor_state(this->phases_[2].current_sensor_, 47, ONE_DEC_UNIT);
+      publish_2_reg_sensor_state(this->phases_[2].active_power_sensor_, 48, 49, ONE_DEC_UNIT);
+
+      publish_2_reg_sensor_state(this->today_production_, 53, 54, ONE_DEC_UNIT);
+      publish_2_reg_sensor_state(this->total_energy_production_, 55, 56, ONE_DEC_UNIT);
+
+      publish_1_reg_sensor_state(this->inverter_module_temp_, 93, ONE_DEC_UNIT);
+      break;
+    }
+  }
 }
 
 void GrowattSolar::dump_config() {

esphome/components/growatt_solar/growatt_solar.h

@@ -10,12 +10,19 @@ namespace growatt_solar {
 static const float TWO_DEC_UNIT = 0.01;
 static const float ONE_DEC_UNIT = 0.1;
 
+enum GrowattProtocolVersion {
+  RTU = 0,
+  RTU2,
+};
+
 class GrowattSolar : public PollingComponent, public modbus::ModbusDevice {
  public:
   void update() override;
   void on_modbus_data(const std::vector<uint8_t> &data) override;
   void dump_config() override;
 
+  void set_protocol_version(GrowattProtocolVersion protocol_version) { this->protocol_version_ = protocol_version; }
+
   void set_inverter_status_sensor(sensor::Sensor *sensor) { this->inverter_status_ = sensor; }
 
   void set_grid_frequency_sensor(sensor::Sensor *sensor) { this->grid_frequency_sensor_ = sensor; }
@@ -67,6 +74,7 @@ class GrowattSolar : public PollingComponent, public modbus::ModbusDevice {
   sensor::Sensor *today_production_{nullptr};
   sensor::Sensor *total_energy_production_{nullptr};
   sensor::Sensor *inverter_module_temp_{nullptr};
+  GrowattProtocolVersion protocol_version_;
 };
 
 }  // namespace growatt_solar

esphome/components/growatt_solar/sensor.py

@@ -39,7 +39,7 @@ UNIT_MILLIAMPERE = "mA"
 CONF_INVERTER_STATUS = "inverter_status"
 CONF_PV_ACTIVE_POWER = "pv_active_power"
 CONF_INVERTER_MODULE_TEMP = "inverter_module_temp"
-
+CONF_PROTOCOL_VERSION = "protocol_version"
 
 AUTO_LOAD = ["modbus"]
 CODEOWNERS = ["@leeuwte"]
@@ -95,10 +95,20 @@ PV_SCHEMA = cv.Schema(
     {cv.Optional(sensor): schema for sensor, schema in PV_SENSORS.items()}
 )
 
+GrowattProtocolVersion = growatt_solar_ns.enum("GrowattProtocolVersion")
+PROTOCOL_VERSIONS = {
+    "RTU": GrowattProtocolVersion.RTU,
+    "RTU2": GrowattProtocolVersion.RTU2,
+}
+
+
 CONFIG_SCHEMA = (
     cv.Schema(
         {
             cv.GenerateID(): cv.declare_id(GrowattSolar),
+            cv.Optional(CONF_PROTOCOL_VERSION, default="RTU"): cv.enum(
+                PROTOCOL_VERSIONS, upper=True
+            ),
             cv.Optional(CONF_PHASE_A): PHASE_SCHEMA,
             cv.Optional(CONF_PHASE_B): PHASE_SCHEMA,
             cv.Optional(CONF_PHASE_C): PHASE_SCHEMA,
@@ -152,6 +162,8 @@ async def to_code(config):
     await cg.register_component(var, config)
     await modbus.register_modbus_device(var, config)
 
+    cg.add(var.set_protocol_version(config[CONF_PROTOCOL_VERSION]))
+
     if CONF_INVERTER_STATUS in config:
         sens = await sensor.new_sensor(config[CONF_INVERTER_STATUS])
         cg.add(var.set_inverter_status_sensor(sens))

esphome/components/heatpumpir/climate.py

@@ -25,6 +25,7 @@ PROTOCOLS = {
     "daikin_arc417": Protocol.PROTOCOL_DAIKIN_ARC417,
     "daikin_arc480": Protocol.PROTOCOL_DAIKIN_ARC480,
     "daikin": Protocol.PROTOCOL_DAIKIN,
+    "electroluxyal": Protocol.PROTOCOL_ELECTROLUXYAL,
     "fuego": Protocol.PROTOCOL_FUEGO,
     "fujitsu_awyz": Protocol.PROTOCOL_FUJITSU_AWYZ,
     "gree": Protocol.PROTOCOL_GREE,
@@ -112,6 +113,4 @@ def to_code(config):
     cg.add(var.set_max_temperature(config[CONF_MAX_TEMPERATURE]))
     cg.add(var.set_min_temperature(config[CONF_MIN_TEMPERATURE]))
 
-    # PIO isn't updating releases, so referencing the release tag directly. See:
-    # https://github.com/ToniA/arduino-heatpumpir/commit/0948c619d86407a4e50e8db2f3c193e0576c86fd
-    cg.add_library("", "", "https://github.com/ToniA/arduino-heatpumpir.git#1.0.18")
+    cg.add_library("tonia/HeatpumpIR", "1.0.20")

esphome/components/heatpumpir/heatpumpir.cpp

@@ -20,6 +20,7 @@ const std::map<Protocol, std::function<HeatpumpIR *()>> PROTOCOL_CONSTRUCTOR_MAP
     {PROTOCOL_DAIKIN_ARC417, []() { return new DaikinHeatpumpARC417IR(); }},                 // NOLINT
     {PROTOCOL_DAIKIN_ARC480, []() { return new DaikinHeatpumpARC480A14IR(); }},              // NOLINT
     {PROTOCOL_DAIKIN, []() { return new DaikinHeatpumpIR(); }},                              // NOLINT
+    {PROTOCOL_ELECTROLUXYAL, []() { return new ElectroluxYALHeatpumpIR(); }},                // NOLINT
     {PROTOCOL_FUEGO, []() { return new FuegoHeatpumpIR(); }},                                // NOLINT
     {PROTOCOL_FUJITSU_AWYZ, []() { return new FujitsuHeatpumpIR(); }},                       // NOLINT
     {PROTOCOL_GREE, []() { return new GreeGenericHeatpumpIR(); }},                           // NOLINT

esphome/components/heatpumpir/heatpumpir.h

@@ -20,6 +20,7 @@ enum Protocol {
   PROTOCOL_DAIKIN_ARC417,
   PROTOCOL_DAIKIN_ARC480,
   PROTOCOL_DAIKIN,
+  PROTOCOL_ELECTROLUXYAL,
   PROTOCOL_FUEGO,
   PROTOCOL_FUJITSU_AWYZ,
   PROTOCOL_GREE,

esphome/components/hm3301/abstract_aqi_calculator.h

@@ -7,7 +7,7 @@ namespace hm3301 {
 
 class AbstractAQICalculator {
  public:
-  virtual uint8_t get_aqi(uint16_t pm2_5_value, uint16_t pm10_0_value) = 0;
+  virtual uint16_t get_aqi(uint16_t pm2_5_value, uint16_t pm10_0_value) = 0;
 };
 
 }  // namespace hm3301

esphome/components/hm3301/aqi_calculator.h

@@ -7,7 +7,7 @@ namespace hm3301 {
 
 class AQICalculator : public AbstractAQICalculator {
  public:
-  uint8_t get_aqi(uint16_t pm2_5_value, uint16_t pm10_0_value) override {
+  uint16_t get_aqi(uint16_t pm2_5_value, uint16_t pm10_0_value) override {
     int pm2_5_index = calculate_index_(pm2_5_value, pm2_5_calculation_grid_);
     int pm10_0_index = calculate_index_(pm10_0_value, pm10_0_calculation_grid_);
 

esphome/components/hm3301/caqi_calculator.h

@@ -8,7 +8,7 @@ namespace hm3301 {
 
 class CAQICalculator : public AbstractAQICalculator {
  public:
-  uint8_t get_aqi(uint16_t pm2_5_value, uint16_t pm10_0_value) override {
+  uint16_t get_aqi(uint16_t pm2_5_value, uint16_t pm10_0_value) override {
     int pm2_5_index = calculate_index_(pm2_5_value, pm2_5_calculation_grid_);
     int pm10_0_index = calculate_index_(pm10_0_value, pm10_0_calculation_grid_);
 

esphome/components/hm3301/hm3301.cpp

@@ -62,7 +62,7 @@ void HM3301Component::update() {
     pm_10_0_value = get_sensor_value_(data_buffer_, PM_10_0_VALUE_INDEX);
   }
 
-  int8_t aqi_value = -1;
+  int16_t aqi_value = -1;
   if (this->aqi_sensor_ != nullptr && pm_2_5_value != -1 && pm_10_0_value != -1) {
     AbstractAQICalculator *calculator = this->aqi_calculator_factory_.get_calculator(this->aqi_calc_type_);
     aqi_value = calculator->get_aqi(pm_2_5_value, pm_10_0_value);

esphome/components/homeassistant/__init__.py

@@ -1,4 +1,20 @@
 import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.const import CONF_ATTRIBUTE, CONF_ENTITY_ID, CONF_INTERNAL
 
 CODEOWNERS = ["@OttoWinter"]
 homeassistant_ns = cg.esphome_ns.namespace("homeassistant")
+
+HOME_ASSISTANT_IMPORT_SCHEMA = cv.Schema(
+    {
+        cv.Required(CONF_ENTITY_ID): cv.entity_id,
+        cv.Optional(CONF_ATTRIBUTE): cv.string,
+        cv.Optional(CONF_INTERNAL, default=True): cv.boolean,
+    }
+)
+
+
+def setup_home_assistant_entity(var, config):
+    cg.add(var.set_entity_id(config[CONF_ENTITY_ID]))
+    if CONF_ATTRIBUTE in config:
+        cg.add(var.set_attribute(config[CONF_ATTRIBUTE]))

esphome/components/homeassistant/binary_sensor/__init__.py

@@ -1,30 +1,24 @@
 import esphome.codegen as cg
-import esphome.config_validation as cv
 from esphome.components import binary_sensor
-from esphome.const import CONF_ATTRIBUTE, CONF_ENTITY_ID
-from .. import homeassistant_ns
+
+from .. import (
+    HOME_ASSISTANT_IMPORT_SCHEMA,
+    homeassistant_ns,
+    setup_home_assistant_entity,
+)
 
 DEPENDENCIES = ["api"]
+
 HomeassistantBinarySensor = homeassistant_ns.class_(
     "HomeassistantBinarySensor", binary_sensor.BinarySensor, cg.Component
 )
 
-CONFIG_SCHEMA = (
-    binary_sensor.binary_sensor_schema(HomeassistantBinarySensor)
-    .extend(
-        {
-            cv.Required(CONF_ENTITY_ID): cv.entity_id,
-            cv.Optional(CONF_ATTRIBUTE): cv.string,
-        }
-    )
-    .extend(cv.COMPONENT_SCHEMA)
+CONFIG_SCHEMA = binary_sensor.binary_sensor_schema(HomeassistantBinarySensor).extend(
+    HOME_ASSISTANT_IMPORT_SCHEMA
 )
 
 
 async def to_code(config):
     var = await binary_sensor.new_binary_sensor(config)
     await cg.register_component(var, config)
-
-    cg.add(var.set_entity_id(config[CONF_ENTITY_ID]))
-    if CONF_ATTRIBUTE in config:
-        cg.add(var.set_attribute(config[CONF_ATTRIBUTE]))
+    setup_home_assistant_entity(var, config)

esphome/components/homeassistant/sensor/__init__.py

@@ -1,12 +1,11 @@
 import esphome.codegen as cg
-import esphome.config_validation as cv
 from esphome.components import sensor
-from esphome.const import (
-    CONF_ATTRIBUTE,
-    CONF_ENTITY_ID,
-    CONF_ID,
+
+from .. import (
+    HOME_ASSISTANT_IMPORT_SCHEMA,
+    homeassistant_ns,
+    setup_home_assistant_entity,
 )
-from .. import homeassistant_ns
 
 DEPENDENCIES = ["api"]
 
@@ -14,19 +13,12 @@ HomeassistantSensor = homeassistant_ns.class_(
     "HomeassistantSensor", sensor.Sensor, cg.Component
 )
 
-CONFIG_SCHEMA = sensor.sensor_schema(HomeassistantSensor, accuracy_decimals=1,).extend(
-    {
-        cv.Required(CONF_ENTITY_ID): cv.entity_id,
-        cv.Optional(CONF_ATTRIBUTE): cv.string,
-    }
+CONFIG_SCHEMA = sensor.sensor_schema(HomeassistantSensor, accuracy_decimals=1).extend(
+    HOME_ASSISTANT_IMPORT_SCHEMA
 )
 
 
 async def to_code(config):
-    var = cg.new_Pvariable(config[CONF_ID])
+    var = await sensor.new_sensor(config)
     await cg.register_component(var, config)
-    await sensor.register_sensor(var, config)
-
-    cg.add(var.set_entity_id(config[CONF_ENTITY_ID]))
-    if CONF_ATTRIBUTE in config:
-        cg.add(var.set_attribute(config[CONF_ATTRIBUTE]))
+    setup_home_assistant_entity(var, config)

esphome/components/homeassistant/text_sensor/__init__.py

@@ -1,9 +1,11 @@
 import esphome.codegen as cg
-import esphome.config_validation as cv
 from esphome.components import text_sensor
-from esphome.const import CONF_ATTRIBUTE, CONF_ENTITY_ID
 
-from .. import homeassistant_ns
+from .. import (
+    HOME_ASSISTANT_IMPORT_SCHEMA,
+    homeassistant_ns,
+    setup_home_assistant_entity,
+)
 
 DEPENDENCIES = ["api"]
 
@@ -11,19 +13,12 @@ HomeassistantTextSensor = homeassistant_ns.class_(
     "HomeassistantTextSensor", text_sensor.TextSensor, cg.Component
 )
 
-CONFIG_SCHEMA = text_sensor.text_sensor_schema().extend(
-    {
-        cv.GenerateID(): cv.declare_id(HomeassistantTextSensor),
-        cv.Required(CONF_ENTITY_ID): cv.entity_id,
-        cv.Optional(CONF_ATTRIBUTE): cv.string,
-    }
+CONFIG_SCHEMA = text_sensor.text_sensor_schema(HomeassistantTextSensor).extend(
+    HOME_ASSISTANT_IMPORT_SCHEMA
 )
 
 
 async def to_code(config):
     var = await text_sensor.new_text_sensor(config)
     await cg.register_component(var, config)
-
-    cg.add(var.set_entity_id(config[CONF_ENTITY_ID]))
-    if CONF_ATTRIBUTE in config:
-        cg.add(var.set_attribute(config[CONF_ATTRIBUTE]))
+    setup_home_assistant_entity(var, config)

esphome/components/hydreon_rgxx/__init__.py

@@ -0,0 +1,11 @@
+import esphome.codegen as cg
+from esphome.components import uart
+
+CODEOWNERS = ["@functionpointer"]
+DEPENDENCIES = ["uart"]
+
+hydreon_rgxx_ns = cg.esphome_ns.namespace("hydreon_rgxx")
+RGModel = hydreon_rgxx_ns.enum("RGModel")
+HydreonRGxxComponent = hydreon_rgxx_ns.class_(
+    "HydreonRGxxComponent", cg.PollingComponent, uart.UARTDevice
+)

esphome/components/hydreon_rgxx/binary_sensor.py

@@ -0,0 +1,36 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import binary_sensor
+from esphome.const import (
+    CONF_ID,
+    DEVICE_CLASS_COLD,
+)
+
+from . import hydreon_rgxx_ns, HydreonRGxxComponent
+
+CONF_HYDREON_RGXX_ID = "hydreon_rgxx_id"
+CONF_TOO_COLD = "too_cold"
+
+HydreonRGxxBinarySensor = hydreon_rgxx_ns.class_(
+    "HydreonRGxxBinaryComponent", cg.Component
+)
+
+
+CONFIG_SCHEMA = cv.Schema(
+    {
+        cv.GenerateID(): cv.declare_id(HydreonRGxxBinarySensor),
+        cv.GenerateID(CONF_HYDREON_RGXX_ID): cv.use_id(HydreonRGxxComponent),
+        cv.Optional(CONF_TOO_COLD): binary_sensor.binary_sensor_schema(
+            device_class=DEVICE_CLASS_COLD
+        ),
+    }
+)
+
+
+async def to_code(config):
+    main_sensor = await cg.get_variable(config[CONF_HYDREON_RGXX_ID])
+    bin_component = cg.new_Pvariable(config[CONF_ID], main_sensor)
+    await cg.register_component(bin_component, config)
+    if CONF_TOO_COLD in config:
+        tc = await binary_sensor.new_binary_sensor(config[CONF_TOO_COLD])
+        cg.add(main_sensor.set_too_cold_sensor(tc))

esphome/components/hydreon_rgxx/hydreon_rgxx.cpp

@@ -0,0 +1,211 @@
+#include "hydreon_rgxx.h"
+#include "esphome/core/log.h"
+
+namespace esphome {
+namespace hydreon_rgxx {
+
+static const char *const TAG = "hydreon_rgxx.sensor";
+static const int MAX_DATA_LENGTH_BYTES = 80;
+static const uint8_t ASCII_LF = 0x0A;
+#define HYDREON_RGXX_COMMA ,
+static const char *const PROTOCOL_NAMES[] = {HYDREON_RGXX_PROTOCOL_LIST(, HYDREON_RGXX_COMMA)};
+
+void HydreonRGxxComponent::dump_config() {
+  this->check_uart_settings(9600, 1, esphome::uart::UART_CONFIG_PARITY_NONE, 8);
+  ESP_LOGCONFIG(TAG, "hydreon_rgxx:");
+  if (this->is_failed()) {
+    ESP_LOGE(TAG, "Connection with hydreon_rgxx failed!");
+  }
+  LOG_UPDATE_INTERVAL(this);
+
+  int i = 0;
+#define HYDREON_RGXX_LOG_SENSOR(s) \
+  if (this->sensors_[i++] != nullptr) { \
+    LOG_SENSOR("  ", #s, this->sensors_[i - 1]); \
+  }
+  HYDREON_RGXX_PROTOCOL_LIST(HYDREON_RGXX_LOG_SENSOR, );
+}
+
+void HydreonRGxxComponent::setup() {
+  ESP_LOGCONFIG(TAG, "Setting up hydreon_rgxx...");
+  while (this->available() != 0) {
+    this->read();
+  }
+  this->schedule_reboot_();
+}
+
+bool HydreonRGxxComponent::sensor_missing_() {
+  if (this->sensors_received_ == -1) {
+    // no request sent yet, don't check
+    return false;
+  } else {
+    if (this->sensors_received_ == 0) {
+      ESP_LOGW(TAG, "No data at all");
+      return true;
+    }
+    for (int i = 0; i < NUM_SENSORS; i++) {
+      if (this->sensors_[i] == nullptr) {
+        continue;
+      }
+      if ((this->sensors_received_ >> i & 1) == 0) {
+        ESP_LOGW(TAG, "Missing %s", PROTOCOL_NAMES[i]);
+        return true;
+      }
+    }
+    return false;
+  }
+}
+
+void HydreonRGxxComponent::update() {
+  if (this->boot_count_ > 0) {
+    if (this->sensor_missing_()) {
+      this->no_response_count_++;
+      ESP_LOGE(TAG, "data missing %d times", this->no_response_count_);
+      if (this->no_response_count_ > 15) {
+        ESP_LOGE(TAG, "asking sensor to reboot");
+        for (auto &sensor : this->sensors_) {
+          if (sensor != nullptr) {
+            sensor->publish_state(NAN);
+          }
+        }
+        this->schedule_reboot_();
+        return;
+      }
+    } else {
+      this->no_response_count_ = 0;
+    }
+    this->write_str("R\n");
+#ifdef USE_BINARY_SENSOR
+    if (this->too_cold_sensor_ != nullptr) {
+      this->too_cold_sensor_->publish_state(this->too_cold_);
+    }
+#endif
+    this->too_cold_ = false;
+    this->sensors_received_ = 0;
+  }
+}
+
+void HydreonRGxxComponent::loop() {
+  uint8_t data;
+  while (this->available() > 0) {
+    if (this->read_byte(&data)) {
+      buffer_ += (char) data;
+      if (this->buffer_.back() == static_cast<char>(ASCII_LF) || this->buffer_.length() >= MAX_DATA_LENGTH_BYTES) {
+        // complete line received
+        this->process_line_();
+        this->buffer_.clear();
+      }
+    }
+  }
+}
+
+/**
+ * Communication with the sensor is asynchronous.
+ * We send requests and let esphome continue doing its thing.
+ * Once we have received a complete line, we process it.
+ *
+ * Catching communication failures is done in two layers:
+ *
+ * 1. We check if all requested data has been received
+ *    before we send out the next request. If data keeps
+ *    missing, we escalate.
+ * 2. Request the sensor to reboot. We retry based on
+ *    a timeout. If the sensor does not respond after
+ *    several boot attempts, we give up.
+ */
+void HydreonRGxxComponent::schedule_reboot_() {
+  this->boot_count_ = 0;
+  this->set_interval("reboot", 5000, [this]() {
+    if (this->boot_count_ < 0) {
+      ESP_LOGW(TAG, "hydreon_rgxx failed to boot %d times", -this->boot_count_);
+    }
+    this->boot_count_--;
+    this->write_str("K\n");
+    if (this->boot_count_ < -5) {
+      ESP_LOGE(TAG, "hydreon_rgxx can't boot, giving up");
+      for (auto &sensor : this->sensors_) {
+        if (sensor != nullptr) {
+          sensor->publish_state(NAN);
+        }
+      }
+      this->mark_failed();
+    }
+  });
+}
+
+bool HydreonRGxxComponent::buffer_starts_with_(const std::string &prefix) {
+  return this->buffer_starts_with_(prefix.c_str());
+}
+
+bool HydreonRGxxComponent::buffer_starts_with_(const char *prefix) { return buffer_.rfind(prefix, 0) == 0; }
+
+void HydreonRGxxComponent::process_line_() {
+  ESP_LOGV(TAG, "Read from serial: %s", this->buffer_.substr(0, this->buffer_.size() - 2).c_str());
+
+  if (buffer_[0] == ';') {
+    ESP_LOGI(TAG, "Comment: %s", this->buffer_.substr(0, this->buffer_.size() - 2).c_str());
+    return;
+  }
+  if (this->buffer_starts_with_("PwrDays")) {
+    if (this->boot_count_ <= 0) {
+      this->boot_count_ = 1;
+    } else {
+      this->boot_count_++;
+    }
+    this->cancel_interval("reboot");
+    this->no_response_count_ = 0;
+    ESP_LOGI(TAG, "Boot detected: %s", this->buffer_.substr(0, this->buffer_.size() - 2).c_str());
+    this->write_str("P\nH\nM\n");  // set sensor to polling mode, high res mode, metric mode
+    return;
+  }
+  if (this->buffer_starts_with_("SW")) {
+    std::string::size_type majend = this->buffer_.find('.');
+    std::string::size_type endversion = this->buffer_.find(' ', 3);
+    if (majend == std::string::npos || endversion == std::string::npos || majend > endversion) {
+      ESP_LOGW(TAG, "invalid version string: %s", this->buffer_.substr(0, this->buffer_.size() - 2).c_str());
+    }
+    int major = strtol(this->buffer_.substr(3, majend - 3).c_str(), nullptr, 10);
+    int minor = strtol(this->buffer_.substr(majend + 1, endversion - (majend + 1)).c_str(), nullptr, 10);
+
+    if (major > 10 || minor >= 1000 || minor < 0 || major < 0) {
+      ESP_LOGW(TAG, "invalid version: %s", this->buffer_.substr(0, this->buffer_.size() - 2).c_str());
+    }
+    this->sw_version_ = major * 1000 + minor;
+    ESP_LOGI(TAG, "detected sw version %i", this->sw_version_);
+    return;
+  }
+  bool is_data_line = false;
+  for (int i = 0; i < NUM_SENSORS; i++) {
+    if (this->sensors_[i] != nullptr && this->buffer_starts_with_(PROTOCOL_NAMES[i])) {
+      is_data_line = true;
+      break;
+    }
+  }
+  if (is_data_line) {
+    std::string::size_type tc = this->buffer_.find("TooCold");
+    this->too_cold_ |= tc != std::string::npos;
+    if (this->too_cold_) {
+      ESP_LOGD(TAG, "Received TooCold");
+    }
+    for (int i = 0; i < NUM_SENSORS; i++) {
+      if (this->sensors_[i] == nullptr) {
+        continue;
+      }
+      std::string::size_type n = this->buffer_.find(PROTOCOL_NAMES[i]);
+      if (n == std::string::npos) {
+        continue;
+      }
+      int data = strtol(this->buffer_.substr(n + strlen(PROTOCOL_NAMES[i])).c_str(), nullptr, 10);
+      this->sensors_[i]->publish_state(data);
+      ESP_LOGD(TAG, "Received %s: %f", PROTOCOL_NAMES[i], this->sensors_[i]->get_raw_state());
+      this->sensors_received_ |= (1 << i);
+    }
+  } else {
+    ESP_LOGI(TAG, "Got unknown line: %s", this->buffer_.c_str());
+  }
+}
+
+float HydreonRGxxComponent::get_setup_priority() const { return setup_priority::DATA; }
+
+}  // namespace hydreon_rgxx
+}  // namespace esphome

esphome/components/hydreon_rgxx/hydreon_rgxx.h

@@ -0,0 +1,76 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/core/defines.h"
+#include "esphome/components/sensor/sensor.h"
+#ifdef USE_BINARY_SENSOR
+#include "esphome/components/binary_sensor/binary_sensor.h"
+#endif
+#include "esphome/components/uart/uart.h"
+
+namespace esphome {
+namespace hydreon_rgxx {
+
+enum RGModel {
+  RG9 = 1,
+  RG15 = 2,
+};
+
+#ifdef HYDREON_RGXX_NUM_SENSORS
+static const uint8_t NUM_SENSORS = HYDREON_RGXX_NUM_SENSORS;
+#else
+static const uint8_t NUM_SENSORS = 1;
+#endif
+
+#ifndef HYDREON_RGXX_PROTOCOL_LIST
+#define HYDREON_RGXX_PROTOCOL_LIST(F, SEP) F("")
+#endif
+
+class HydreonRGxxComponent : public PollingComponent, public uart::UARTDevice {
+ public:
+  void set_sensor(sensor::Sensor *sensor, int index) { this->sensors_[index] = sensor; }
+#ifdef USE_BINARY_SENSOR
+  void set_too_cold_sensor(binary_sensor::BinarySensor *sensor) { this->too_cold_sensor_ = sensor; }
+#endif
+  void set_model(RGModel model) { model_ = model; }
+
+  /// Schedule data readings.
+  void update() override;
+  /// Read data once available
+  void loop() override;
+  /// Setup the sensor and test for a connection.
+  void setup() override;
+  void dump_config() override;
+
+  float get_setup_priority() const override;
+
+ protected:
+  void process_line_();
+  void schedule_reboot_();
+  bool buffer_starts_with_(const std::string &prefix);
+  bool buffer_starts_with_(const char *prefix);
+  bool sensor_missing_();
+
+  sensor::Sensor *sensors_[NUM_SENSORS] = {nullptr};
+#ifdef USE_BINARY_SENSOR
+  binary_sensor::BinarySensor *too_cold_sensor_ = nullptr;
+#endif
+
+  int16_t boot_count_ = 0;
+  int16_t no_response_count_ = 0;
+  std::string buffer_;
+  RGModel model_ = RG9;
+  int sw_version_ = 0;
+  bool too_cold_ = false;
+
+  // bit field showing which sensors we have received data for
+  int sensors_received_ = -1;
+};
+
+class HydreonRGxxBinaryComponent : public Component {
+ public:
+  HydreonRGxxBinaryComponent(HydreonRGxxComponent *parent) {}
+};
+
+}  // namespace hydreon_rgxx
+}  // namespace esphome

esphome/components/hydreon_rgxx/sensor.py

@@ -0,0 +1,119 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import uart, sensor
+from esphome.const import (
+    CONF_ID,
+    CONF_MODEL,
+    CONF_MOISTURE,
+    DEVICE_CLASS_HUMIDITY,
+    STATE_CLASS_MEASUREMENT,
+)
+
+from . import RGModel, HydreonRGxxComponent
+
+UNIT_INTENSITY = "intensity"
+UNIT_MILLIMETERS = "mm"
+UNIT_MILLIMETERS_PER_HOUR = "mm/h"
+
+CONF_ACC = "acc"
+CONF_EVENT_ACC = "event_acc"
+CONF_TOTAL_ACC = "total_acc"
+CONF_R_INT = "r_int"
+
+RG_MODELS = {
+    "RG_9": RGModel.RG9,
+    "RG_15": RGModel.RG15,
+    # https://rainsensors.com/wp-content/uploads/sites/3/2020/07/rg-15_instructions_sw_1.000.pdf
+    # https://rainsensors.com/wp-content/uploads/sites/3/2021/03/2020.08.25-rg-9_instructions.pdf
+    # https://rainsensors.com/wp-content/uploads/sites/3/2021/03/2021.03.11-rg-9_instructions.pdf
+}
+SUPPORTED_SENSORS = {
+    CONF_ACC: ["RG_15"],
+    CONF_EVENT_ACC: ["RG_15"],
+    CONF_TOTAL_ACC: ["RG_15"],
+    CONF_R_INT: ["RG_15"],
+    CONF_MOISTURE: ["RG_9"],
+}
+PROTOCOL_NAMES = {
+    CONF_MOISTURE: "R",
+    CONF_ACC: "Acc",
+    CONF_R_INT: "Rint",
+    CONF_EVENT_ACC: "EventAcc",
+    CONF_TOTAL_ACC: "TotalAcc",
+}
+
+
+def _validate(config):
+    for conf, models in SUPPORTED_SENSORS.items():
+        if conf in config:
+            if config[CONF_MODEL] not in models:
+                raise cv.Invalid(
+                    f"{conf} is only available on {' and '.join(models)}, not {config[CONF_MODEL]}"
+                )
+    return config
+
+
+CONFIG_SCHEMA = cv.All(
+    cv.Schema(
+        {
+            cv.GenerateID(): cv.declare_id(HydreonRGxxComponent),
+            cv.Required(CONF_MODEL): cv.enum(
+                RG_MODELS,
+                upper=True,
+                space="_",
+            ),
+            cv.Optional(CONF_ACC): sensor.sensor_schema(
+                unit_of_measurement=UNIT_MILLIMETERS,
+                accuracy_decimals=2,
+                device_class=DEVICE_CLASS_HUMIDITY,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_EVENT_ACC): sensor.sensor_schema(
+                unit_of_measurement=UNIT_MILLIMETERS,
+                accuracy_decimals=2,
+                device_class=DEVICE_CLASS_HUMIDITY,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_TOTAL_ACC): sensor.sensor_schema(
+                unit_of_measurement=UNIT_MILLIMETERS,
+                accuracy_decimals=2,
+                device_class=DEVICE_CLASS_HUMIDITY,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_R_INT): sensor.sensor_schema(
+                unit_of_measurement=UNIT_MILLIMETERS_PER_HOUR,
+                accuracy_decimals=2,
+                device_class=DEVICE_CLASS_HUMIDITY,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_MOISTURE): sensor.sensor_schema(
+                unit_of_measurement=UNIT_INTENSITY,
+                accuracy_decimals=0,
+                device_class=DEVICE_CLASS_HUMIDITY,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+        }
+    )
+    .extend(cv.polling_component_schema("60s"))
+    .extend(uart.UART_DEVICE_SCHEMA),
+    _validate,
+)
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await cg.register_component(var, config)
+    await uart.register_uart_device(var, config)
+
+    cg.add_define(
+        "HYDREON_RGXX_PROTOCOL_LIST(F, sep)",
+        cg.RawExpression(
+            " sep ".join([f'F("{name}")' for name in PROTOCOL_NAMES.values()])
+        ),
+    )
+    cg.add_define("HYDREON_RGXX_NUM_SENSORS", len(PROTOCOL_NAMES))
+
+    for i, conf in enumerate(PROTOCOL_NAMES):
+        if conf in config:
+            sens = await sensor.new_sensor(config[conf])
+            cg.add(var.set_sensor(sens, i))

esphome/components/i2c/i2c.h

@@ -46,21 +46,21 @@ class I2CDevice {
   I2CRegister reg(uint8_t a_register) { return {this, a_register}; }
 
   ErrorCode read(uint8_t *data, size_t len) { return bus_->read(address_, data, len); }
-  ErrorCode read_register(uint8_t a_register, uint8_t *data, size_t len) {
-    ErrorCode err = this->write(&a_register, 1);
+  ErrorCode read_register(uint8_t a_register, uint8_t *data, size_t len, bool stop = true) {
+    ErrorCode err = this->write(&a_register, 1, stop);
     if (err != ERROR_OK)
       return err;
     return this->read(data, len);
   }
 
-  ErrorCode write(const uint8_t *data, uint8_t len) { return bus_->write(address_, data, len); }
-  ErrorCode write_register(uint8_t a_register, const uint8_t *data, size_t len) {
+  ErrorCode write(const uint8_t *data, uint8_t len, bool stop = true) { return bus_->write(address_, data, len, stop); }
+  ErrorCode write_register(uint8_t a_register, const uint8_t *data, size_t len, bool stop = true) {
     WriteBuffer buffers[2];
     buffers[0].data = &a_register;
     buffers[0].len = 1;
     buffers[1].data = data;
     buffers[1].len = len;
-    return bus_->writev(address_, buffers, 2);
+    return bus_->writev(address_, buffers, 2, stop);
   }
 
   // Compat APIs
@@ -93,7 +93,9 @@ class I2CDevice {
     return true;
   }
 
-  bool read_byte(uint8_t a_register, uint8_t *data) { return read_register(a_register, data, 1) == ERROR_OK; }
+  bool read_byte(uint8_t a_register, uint8_t *data, bool stop = true) {
+    return read_register(a_register, data, 1, stop) == ERROR_OK;
+  }
 
   optional<uint8_t> read_byte(uint8_t a_register) {
     uint8_t data;
@@ -104,8 +106,8 @@ class I2CDevice {
 
   bool read_byte_16(uint8_t a_register, uint16_t *data) { return read_bytes_16(a_register, data, 1); }
 
-  bool write_bytes(uint8_t a_register, const uint8_t *data, uint8_t len) {
-    return write_register(a_register, data, len) == ERROR_OK;
+  bool write_bytes(uint8_t a_register, const uint8_t *data, uint8_t len, bool stop = true) {
+    return write_register(a_register, data, len, stop) == ERROR_OK;
   }
 
   bool write_bytes(uint8_t a_register, const std::vector<uint8_t> &data) {
@@ -118,7 +120,9 @@ class I2CDevice {
 
   bool write_bytes_16(uint8_t a_register, const uint16_t *data, uint8_t len);
 
-  bool write_byte(uint8_t a_register, uint8_t data) { return write_bytes(a_register, &data, 1); }
+  bool write_byte(uint8_t a_register, uint8_t data, bool stop = true) {
+    return write_bytes(a_register, &data, 1, stop);
+  }
 
   bool write_byte_16(uint8_t a_register, uint16_t data) { return write_bytes_16(a_register, &data, 1); }
 

esphome/components/i2c/i2c_bus.h

@@ -15,6 +15,7 @@ enum ErrorCode {
   ERROR_NOT_INITIALIZED = 4,
   ERROR_TOO_LARGE = 5,
   ERROR_UNKNOWN = 6,
+  ERROR_CRC = 7,
 };
 
 struct ReadBuffer {
@@ -36,12 +37,18 @@ class I2CBus {
   }
   virtual ErrorCode readv(uint8_t address, ReadBuffer *buffers, size_t cnt) = 0;
   virtual ErrorCode write(uint8_t address, const uint8_t *buffer, size_t len) {
+    return write(address, buffer, len, true);
+  }
+  virtual ErrorCode write(uint8_t address, const uint8_t *buffer, size_t len, bool stop) {
     WriteBuffer buf;
     buf.data = buffer;
     buf.len = len;
-    return writev(address, &buf, 1);
+    return writev(address, &buf, 1, stop);
   }
-  virtual ErrorCode writev(uint8_t address, WriteBuffer *buffers, size_t cnt) = 0;
+  virtual ErrorCode writev(uint8_t address, WriteBuffer *buffers, size_t cnt) {
+    return writev(address, buffers, cnt, true);
+  }
+  virtual ErrorCode writev(uint8_t address, WriteBuffer *buffers, size_t cnt, bool stop) = 0;
 
  protected:
   void i2c_scan_() {

esphome/components/i2c/i2c_bus_arduino.cpp

@@ -104,7 +104,7 @@ ErrorCode ArduinoI2CBus::readv(uint8_t address, ReadBuffer *buffers, size_t cnt)
 
   return ERROR_OK;
 }
-ErrorCode ArduinoI2CBus::writev(uint8_t address, WriteBuffer *buffers, size_t cnt) {
+ErrorCode ArduinoI2CBus::writev(uint8_t address, WriteBuffer *buffers, size_t cnt, bool stop) {
   // logging is only enabled with vv level, if warnings are shown the caller
   // should log them
   if (!initialized_) {
@@ -139,7 +139,7 @@ ErrorCode ArduinoI2CBus::writev(uint8_t address, WriteBuffer *buffers, size_t cn
       return ERROR_UNKNOWN;
     }
   }
-  uint8_t status = wire_->endTransmission(true);
+  uint8_t status = wire_->endTransmission(stop);
   if (status == 0) {
     return ERROR_OK;
   } else if (status == 1) {

esphome/components/i2c/i2c_bus_arduino.h

@@ -20,7 +20,7 @@ class ArduinoI2CBus : public I2CBus, public Component {
   void setup() override;
   void dump_config() override;
   ErrorCode readv(uint8_t address, ReadBuffer *buffers, size_t cnt) override;
-  ErrorCode writev(uint8_t address, WriteBuffer *buffers, size_t cnt) override;
+  ErrorCode writev(uint8_t address, WriteBuffer *buffers, size_t cnt, bool stop) override;
   float get_setup_priority() const override { return setup_priority::BUS; }
 
   void set_scan(bool scan) { scan_ = scan; }

esphome/components/i2c/i2c_bus_esp_idf.cpp

@@ -142,7 +142,7 @@ ErrorCode IDFI2CBus::readv(uint8_t address, ReadBuffer *buffers, size_t cnt) {
 
   return ERROR_OK;
 }
-ErrorCode IDFI2CBus::writev(uint8_t address, WriteBuffer *buffers, size_t cnt) {
+ErrorCode IDFI2CBus::writev(uint8_t address, WriteBuffer *buffers, size_t cnt, bool stop) {
   // logging is only enabled with vv level, if warnings are shown the caller
   // should log them
   if (!initialized_) {

esphome/components/i2c/i2c_bus_esp_idf.h

@@ -20,7 +20,7 @@ class IDFI2CBus : public I2CBus, public Component {
   void setup() override;
   void dump_config() override;
   ErrorCode readv(uint8_t address, ReadBuffer *buffers, size_t cnt) override;
-  ErrorCode writev(uint8_t address, WriteBuffer *buffers, size_t cnt) override;
+  ErrorCode writev(uint8_t address, WriteBuffer *buffers, size_t cnt, bool stop) override;
   float get_setup_priority() const override { return setup_priority::BUS; }
 
   void set_scan(bool scan) { scan_ = scan; }

esphome/components/image/__init__.py

@@ -25,6 +25,7 @@ IMAGE_TYPE = {
     "GRAYSCALE": ImageType.IMAGE_TYPE_GRAYSCALE,
     "RGB24": ImageType.IMAGE_TYPE_RGB24,
     "TRANSPARENT_BINARY": ImageType.IMAGE_TYPE_TRANSPARENT_BINARY,
+    "RGB565": ImageType.IMAGE_TYPE_RGB565,
 }
 
 Image_ = display.display_ns.class_("Image")
@@ -89,6 +90,21 @@ async def to_code(config):
             data[pos] = pix[2]
             pos += 1
 
+    elif config[CONF_TYPE] == "RGB565":
+        image = image.convert("RGB")
+        pixels = list(image.getdata())
+        data = [0 for _ in range(height * width * 3)]
+        pos = 0
+        for pix in pixels:
+            R = pix[0] >> 3
+            G = pix[1] >> 2
+            B = pix[2] >> 3
+            rgb = (R << 11) | (G << 5) | B
+            data[pos] = rgb >> 8
+            pos += 1
+            data[pos] = rgb & 255
+            pos += 1
+
     elif config[CONF_TYPE] == "BINARY":
         image = image.convert("1", dither=dither)
         width8 = ((width + 7) // 8) * 8

esphome/components/improv_serial/improv_serial_component.h

@@ -51,7 +51,7 @@ class ImprovSerialComponent : public Component {
   void write_data_(std::vector<uint8_t> &data);
 
 #ifdef USE_ARDUINO
-  HardwareSerial *hw_serial_{nullptr};
+  Stream *hw_serial_{nullptr};
 #endif
 #ifdef USE_ESP_IDF
   uart_port_t uart_num_;

esphome/components/json/json_util.cpp

@@ -16,47 +16,73 @@ static const char *const TAG = "json";
 static std::vector<char> global_json_build_buffer;  // NOLINT
 
 std::string build_json(const json_build_t &f) {
-  // Here we are allocating as much heap memory as available minus 2kb to be safe
+  // Here we are allocating up to 5kb of memory,
+  // with the heap size minus 2kb to be safe if less than 5kb
   // as we can not have a true dynamic sized document.
   // The excess memory is freed below with `shrinkToFit()`
 #ifdef USE_ESP8266
-  const size_t free_heap = ESP.getMaxFreeBlockSize() - 2048;  // NOLINT(readability-static-accessed-through-instance)
+  const size_t free_heap = ESP.getMaxFreeBlockSize();  // NOLINT(readability-static-accessed-through-instance)
 #elif defined(USE_ESP32)
-  const size_t free_heap = heap_caps_get_largest_free_block(MALLOC_CAP_INTERNAL) - 2048;
+  const size_t free_heap = heap_caps_get_largest_free_block(MALLOC_CAP_8BIT);
 #endif
 
-  DynamicJsonDocument json_document(free_heap);
+  const size_t request_size = std::min(free_heap, (size_t) 512);
+
+  DynamicJsonDocument json_document(request_size);
+  if (json_document.capacity() == 0) {
+    ESP_LOGE(TAG, "Could not allocate memory for JSON document! Requested %u bytes, largest free heap block: %u bytes",
+             request_size, free_heap);
+    return "{}";
+  }
   JsonObject root = json_document.to<JsonObject>();
   f(root);
   json_document.shrinkToFit();
-
+  ESP_LOGV(TAG, "Size after shrink %u bytes", json_document.capacity());
   std::string output;
   serializeJson(json_document, output);
   return output;
 }
 
 void parse_json(const std::string &data, const json_parse_t &f) {
-  // Here we are allocating as much heap memory as available minus 2kb to be safe
+  // Here we are allocating 1.5 times the data size,
+  // with the heap size minus 2kb to be safe if less than that
   // as we can not have a true dynamic sized document.
   // The excess memory is freed below with `shrinkToFit()`
 #ifdef USE_ESP8266
-  const size_t free_heap = ESP.getMaxFreeBlockSize() - 2048;  // NOLINT(readability-static-accessed-through-instance)
+  const size_t free_heap = ESP.getMaxFreeBlockSize();  // NOLINT(readability-static-accessed-through-instance)
 #elif defined(USE_ESP32)
-  const size_t free_heap = heap_caps_get_largest_free_block(MALLOC_CAP_INTERNAL) - 2048;
+  const size_t free_heap = heap_caps_get_largest_free_block(MALLOC_CAP_8BIT);
 #endif
+  bool pass = false;
+  size_t request_size = std::min(free_heap, (size_t)(data.size() * 1.5));
+  do {
+    DynamicJsonDocument json_document(request_size);
+    if (json_document.capacity() == 0) {
+      ESP_LOGE(TAG, "Could not allocate memory for JSON document! Requested %u bytes, free heap: %u", request_size,
+               free_heap);
+      return;
+    }
+    DeserializationError err = deserializeJson(json_document, data);
+    json_document.shrinkToFit();
 
-  DynamicJsonDocument json_document(free_heap);
-  DeserializationError err = deserializeJson(json_document, data);
-  json_document.shrinkToFit();
+    JsonObject root = json_document.as<JsonObject>();
 
-  JsonObject root = json_document.as<JsonObject>();
-
-  if (err) {
-    ESP_LOGW(TAG, "Parsing JSON failed.");
-    return;
-  }
-
-  f(root);
+    if (err == DeserializationError::Ok) {
+      pass = true;
+      f(root);
+    } else if (err == DeserializationError::NoMemory) {
+      if (request_size * 2 >= free_heap) {
+        ESP_LOGE(TAG, "Can not allocate more memory for deserialization. Consider making source string smaller");
+        return;
+      }
+      ESP_LOGV(TAG, "Increasing memory allocation.");
+      request_size *= 2;
+      continue;
+    } else {
+      ESP_LOGE(TAG, "JSON parse error: %s", err.c_str());
+      return;
+    }
+  } while (!pass);
 }
 
 }  // namespace json

esphome/components/lcd_base/__init__.py

@@ -1,7 +1,9 @@
 import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.components import display
-from esphome.const import CONF_DIMENSIONS
+from esphome.const import CONF_DIMENSIONS, CONF_POSITION, CONF_DATA
+
+CONF_USER_CHARACTERS = "user_characters"
 
 lcd_base_ns = cg.esphome_ns.namespace("lcd_base")
 LCDDisplay = lcd_base_ns.class_("LCDDisplay", cg.PollingComponent)
@@ -16,9 +18,35 @@ def validate_lcd_dimensions(value):
     return value
 
 
+def validate_user_characters(value):
+    positions = set()
+    for conf in value:
+        if conf[CONF_POSITION] in positions:
+            raise cv.Invalid(
+                f"Duplicate user defined character at position {conf[CONF_POSITION]}"
+            )
+        positions.add(conf[CONF_POSITION])
+    return value
+
+
 LCD_SCHEMA = display.BASIC_DISPLAY_SCHEMA.extend(
     {
         cv.Required(CONF_DIMENSIONS): validate_lcd_dimensions,
+        cv.Optional(CONF_USER_CHARACTERS): cv.All(
+            cv.ensure_list(
+                cv.Schema(
+                    {
+                        cv.Required(CONF_POSITION): cv.int_range(min=0, max=7),
+                        cv.Required(CONF_DATA): cv.All(
+                            cv.ensure_list(cv.int_range(min=0, max=31)),
+                            cv.Length(min=8, max=8),
+                        ),
+                    }
+                ),
+            ),
+            cv.Length(max=8),
+            validate_user_characters,
+        ),
     }
 ).extend(cv.polling_component_schema("1s"))
 
@@ -27,3 +55,6 @@ async def setup_lcd_display(var, config):
     await cg.register_component(var, config)
     await display.register_display(var, config)
     cg.add(var.set_dimensions(config[CONF_DIMENSIONS][0], config[CONF_DIMENSIONS][1]))
+    if CONF_USER_CHARACTERS in config:
+        for usr in config[CONF_USER_CHARACTERS]:
+            cg.add(var.set_user_defined_char(usr[CONF_POSITION], usr[CONF_DATA]))

esphome/components/lcd_base/lcd_display.cpp

@@ -65,6 +65,13 @@ void LCDDisplay::setup() {
     this->command_(LCD_DISPLAY_COMMAND_FUNCTION_SET | display_function);
   }
 
+  // store user defined characters
+  for (auto &user_defined_char : this->user_defined_chars_) {
+    this->command_(LCD_DISPLAY_COMMAND_SET_CGRAM_ADDR | (user_defined_char.first << 3));
+    for (auto data : user_defined_char.second)
+      this->send(data, true);
+  }
+
   this->command_(LCD_DISPLAY_COMMAND_FUNCTION_SET | display_function);
   uint8_t display_control = LCD_DISPLAY_DISPLAY_ON;
   this->command_(LCD_DISPLAY_COMMAND_DISPLAY_CONTROL | display_control);
@@ -160,6 +167,13 @@ void LCDDisplay::strftime(uint8_t column, uint8_t row, const char *format, time:
 }
 void LCDDisplay::strftime(const char *format, time::ESPTime time) { this->strftime(0, 0, format, time); }
 #endif
+void LCDDisplay::loadchar(uint8_t location, uint8_t charmap[]) {
+  location &= 0x7;  // we only have 8 locations 0-7
+  this->command_(LCD_DISPLAY_COMMAND_SET_CGRAM_ADDR | (location << 3));
+  for (int i = 0; i < 8; i++) {
+    this->send(charmap[i], true);
+  }
+}
 
 }  // namespace lcd_base
 }  // namespace esphome

esphome/components/lcd_base/lcd_display.h

@@ -7,6 +7,8 @@
 #include "esphome/components/time/real_time_clock.h"
 #endif
 
+#include <map>
+
 namespace esphome {
 namespace lcd_base {
 
@@ -19,6 +21,8 @@ class LCDDisplay : public PollingComponent {
     this->rows_ = rows;
   }
 
+  void set_user_defined_char(uint8_t pos, const std::vector<uint8_t> &data) { this->user_defined_chars_[pos] = data; }
+
   void setup() override;
   float get_setup_priority() const override;
   void update() override;
@@ -47,6 +51,9 @@ class LCDDisplay : public PollingComponent {
   void strftime(const char *format, time::ESPTime time) __attribute__((format(strftime, 2, 0)));
 #endif
 
+  /// Load custom char to given location
+  void loadchar(uint8_t location, uint8_t charmap[]);
+
  protected:
   virtual bool is_four_bit_mode() = 0;
   virtual void write_n_bits(uint8_t value, uint8_t n) = 0;
@@ -58,6 +65,7 @@ class LCDDisplay : public PollingComponent {
   uint8_t columns_;
   uint8_t rows_;
   uint8_t *buffer_{nullptr};
+  std::map<uint8_t, std::vector<uint8_t> > user_defined_chars_;
 };
 
 }  // namespace lcd_base

esphome/components/logger/__init__.py

@@ -19,8 +19,13 @@ from esphome.const import (
     CONF_TX_BUFFER_SIZE,
 )
 from esphome.core import CORE, EsphomeError, Lambda, coroutine_with_priority
-from esphome.components.esp32 import get_esp32_variant
-from esphome.components.esp32.const import VARIANT_ESP32S2, VARIANT_ESP32C3
+from esphome.components.esp32 import add_idf_sdkconfig_option, get_esp32_variant
+from esphome.components.esp32.const import (
+    VARIANT_ESP32,
+    VARIANT_ESP32S2,
+    VARIANT_ESP32C3,
+    VARIANT_ESP32S3,
+)
 
 CODEOWNERS = ["@esphome/core"]
 logger_ns = cg.esphome_ns.namespace("logger")
@@ -54,36 +59,51 @@ LOG_LEVEL_SEVERITY = [
     "VERY_VERBOSE",
 ]
 
-ESP32_REDUCED_VARIANTS = [VARIANT_ESP32C3, VARIANT_ESP32S2]
+UART0 = "UART0"
+UART1 = "UART1"
+UART2 = "UART2"
+UART0_SWAP = "UART0_SWAP"
+USB_SERIAL_JTAG = "USB_SERIAL_JTAG"
+USB_CDC = "USB_CDC"
 
-UART_SELECTION_ESP32_REDUCED = ["UART0", "UART1"]
+UART_SELECTION_ESP32 = {
+    VARIANT_ESP32: [UART0, UART1, UART2],
+    VARIANT_ESP32S2: [UART0, UART1, USB_CDC],
+    VARIANT_ESP32S3: [UART0, UART1, USB_CDC, USB_SERIAL_JTAG],
+    VARIANT_ESP32C3: [UART0, UART1, USB_SERIAL_JTAG],
+}
 
-UART_SELECTION_ESP32 = ["UART0", "UART1", "UART2"]
+UART_SELECTION_ESP8266 = [UART0, UART0_SWAP, UART1]
 
-UART_SELECTION_ESP8266 = ["UART0", "UART0_SWAP", "UART1"]
+ESP_IDF_UARTS = [USB_CDC, USB_SERIAL_JTAG]
 
 HARDWARE_UART_TO_UART_SELECTION = {
-    "UART0": logger_ns.UART_SELECTION_UART0,
-    "UART0_SWAP": logger_ns.UART_SELECTION_UART0_SWAP,
-    "UART1": logger_ns.UART_SELECTION_UART1,
-    "UART2": logger_ns.UART_SELECTION_UART2,
+    UART0: logger_ns.UART_SELECTION_UART0,
+    UART0_SWAP: logger_ns.UART_SELECTION_UART0_SWAP,
+    UART1: logger_ns.UART_SELECTION_UART1,
+    UART2: logger_ns.UART_SELECTION_UART2,
+    USB_CDC: logger_ns.UART_SELECTION_USB_CDC,
+    USB_SERIAL_JTAG: logger_ns.UART_SELECTION_USB_SERIAL_JTAG,
 }
 
 HARDWARE_UART_TO_SERIAL = {
-    "UART0": cg.global_ns.Serial,
-    "UART0_SWAP": cg.global_ns.Serial,
-    "UART1": cg.global_ns.Serial1,
-    "UART2": cg.global_ns.Serial2,
+    UART0: cg.global_ns.Serial,
+    UART0_SWAP: cg.global_ns.Serial,
+    UART1: cg.global_ns.Serial1,
+    UART2: cg.global_ns.Serial2,
 }
 
 is_log_level = cv.one_of(*LOG_LEVELS, upper=True)
 
 
 def uart_selection(value):
+    if value.upper() in ESP_IDF_UARTS:
+        if not CORE.using_esp_idf:
+            raise cv.Invalid(f"Only esp-idf framework supports {value}.")
     if CORE.is_esp32:
-        if get_esp32_variant() in ESP32_REDUCED_VARIANTS:
-            return cv.one_of(*UART_SELECTION_ESP32_REDUCED, upper=True)(value)
-        return cv.one_of(*UART_SELECTION_ESP32, upper=True)(value)
+        variant = get_esp32_variant()
+        if variant in UART_SELECTION_ESP32:
+            return cv.one_of(*UART_SELECTION_ESP32[variant], upper=True)(value)
     if CORE.is_esp8266:
         return cv.one_of(*UART_SELECTION_ESP8266, upper=True)(value)
     raise NotImplementedError
@@ -113,7 +133,7 @@ CONFIG_SCHEMA = cv.All(
             cv.Optional(CONF_BAUD_RATE, default=115200): cv.positive_int,
             cv.Optional(CONF_TX_BUFFER_SIZE, default=512): cv.validate_bytes,
             cv.Optional(CONF_DEASSERT_RTS_DTR, default=False): cv.boolean,
-            cv.Optional(CONF_HARDWARE_UART, default="UART0"): uart_selection,
+            cv.Optional(CONF_HARDWARE_UART, default=UART0): uart_selection,
             cv.Optional(CONF_LEVEL, default="DEBUG"): is_log_level,
             cv.Optional(CONF_LOGS, default={}): cv.Schema(
                 {
@@ -185,6 +205,12 @@ async def to_code(config):
     if config.get(CONF_ESP8266_STORE_LOG_STRINGS_IN_FLASH):
         cg.add_build_flag("-DUSE_STORE_LOG_STR_IN_FLASH")
 
+    if CORE.using_esp_idf:
+        if config[CONF_HARDWARE_UART] == USB_CDC:
+            add_idf_sdkconfig_option("CONFIG_ESP_CONSOLE_USB_CDC", True)
+        elif config[CONF_HARDWARE_UART] == USB_SERIAL_JTAG:
+            add_idf_sdkconfig_option("CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG", True)
+
     # Register at end for safe mode
     await cg.register_component(log, config)
 
@@ -203,15 +229,6 @@ async def to_code(config):
         )
 
 
-def maybe_simple_message(schema):
-    def validator(value):
-        if isinstance(value, dict):
-            return cv.Schema(schema)(value)
-        return cv.Schema(schema)({CONF_FORMAT: value})
-
-    return validator
-
-
 def validate_printf(value):
     # https://stackoverflow.com/questions/30011379/how-can-i-parse-a-c-format-string-in-python
     cfmt = r"""
@@ -234,7 +251,7 @@ def validate_printf(value):
 
 CONF_LOGGER_LOG = "logger.log"
 LOGGER_LOG_ACTION_SCHEMA = cv.All(
-    maybe_simple_message(
+    cv.maybe_simple_value(
         {
             cv.Required(CONF_FORMAT): cv.string,
             cv.Optional(CONF_ARGS, default=list): cv.ensure_list(cv.lambda_),
@@ -242,9 +259,10 @@ LOGGER_LOG_ACTION_SCHEMA = cv.All(
                 *LOG_LEVEL_TO_ESP_LOG, upper=True
             ),
             cv.Optional(CONF_TAG, default="main"): cv.string,
-        }
-    ),
-    validate_printf,
+        },
+        validate_printf,
+        key=CONF_FORMAT,
+    )
 )
 
 

esphome/components/logger/logger.cpp

@@ -116,8 +116,22 @@ void HOT Logger::log_message_(int level, const char *tag, int offset) {
     this->hw_serial_->println(msg);
 #endif  // USE_ARDUINO
 #ifdef USE_ESP_IDF
-    uart_write_bytes(uart_num_, msg, strlen(msg));
-    uart_write_bytes(uart_num_, "\n", 1);
+    if (
+#if defined(USE_ESP32_VARIANT_ESP32S2)
+        uart_ == UART_SELECTION_USB_CDC
+#elif defined(USE_ESP32_VARIANT_ESP32C3)
+        uart_ == UART_SELECTION_USB_SERIAL_JTAG
+#elif defined(USE_ESP32_VARIANT_ESP32S3)
+        uart_ == UART_SELECTION_USB_CDC || uart_ == UART_SELECTION_USB_SERIAL_JTAG
+#else
+        /* DISABLES CODE */ (false)
+#endif
+    ) {
+      puts(msg);
+    } else {
+      uart_write_bytes(uart_num_, msg, strlen(msg));
+      uart_write_bytes(uart_num_, "\n", 1);
+    }
 #endif
   }
 
@@ -149,13 +163,25 @@ void Logger::pre_setup() {
       case UART_SELECTION_UART0_SWAP:
 #endif
         this->hw_serial_ = &Serial;
+        Serial.begin(this->baud_rate_);
+#ifdef USE_ESP8266
+        if (this->uart_ == UART_SELECTION_UART0_SWAP) {
+          Serial.swap();
+        }
+        Serial.setDebugOutput(ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE);
+#endif
         break;
       case UART_SELECTION_UART1:
         this->hw_serial_ = &Serial1;
+        Serial1.begin(this->baud_rate_);
+#ifdef USE_ESP8266
+        Serial1.setDebugOutput(ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE);
+#endif
         break;
 #if defined(USE_ESP32) && !defined(USE_ESP32_VARIANT_ESP32C3) && !defined(USE_ESP32_VARIANT_ESP32S2)
       case UART_SELECTION_UART2:
         this->hw_serial_ = &Serial2;
+        Serial2.begin(this->baud_rate_);
         break;
 #endif
     }
@@ -169,39 +195,41 @@ void Logger::pre_setup() {
       case UART_SELECTION_UART1:
         uart_num_ = UART_NUM_1;
         break;
-#if defined(USE_ESP32) && !defined(USE_ESP32_VARIANT_ESP32C3) && !defined(USE_ESP32_VARIANT_ESP32S2)
+#if !defined(USE_ESP32_VARIANT_ESP32C3) && !defined(USE_ESP32_VARIANT_ESP32S2) && !defined(USE_ESP32_VARIANT_ESP32S3)
       case UART_SELECTION_UART2:
         uart_num_ = UART_NUM_2;
         break;
-#endif
+#endif  // !USE_ESP32_VARIANT_ESP32C3 && !USE_ESP32_VARIANT_ESP32S2 && !USE_ESP32_VARIANT_ESP32S3
+#if defined(USE_ESP32_VARIANT_ESP32S2) || defined(USE_ESP32_VARIANT_ESP32S3)
+      case UART_SELECTION_USB_CDC:
+        uart_num_ = -1;
+        break;
+#endif  // USE_ESP32_VARIANT_ESP32S2 || USE_ESP32_VARIANT_ESP32S3
+#if defined(USE_ESP32_VARIANT_ESP32C3) || defined(USE_ESP32_VARIANT_ESP32S3)
+      case UART_SELECTION_USB_SERIAL_JTAG:
+        uart_num_ = -1;
+        break;
+#endif  // USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32S3
     }
-    uart_config_t uart_config{};
-    uart_config.baud_rate = (int) baud_rate_;
-    uart_config.data_bits = UART_DATA_8_BITS;
-    uart_config.parity = UART_PARITY_DISABLE;
-    uart_config.stop_bits = UART_STOP_BITS_1;
-    uart_config.flow_ctrl = UART_HW_FLOWCTRL_DISABLE;
-    uart_param_config(uart_num_, &uart_config);
-    const int uart_buffer_size = tx_buffer_size_;
-    // Install UART driver using an event queue here
-    uart_driver_install(uart_num_, uart_buffer_size, uart_buffer_size, 10, nullptr, 0);
-#endif
-
-#ifdef USE_ARDUINO
-    this->hw_serial_->begin(this->baud_rate_);
-#ifdef USE_ESP8266
-    if (this->uart_ == UART_SELECTION_UART0_SWAP) {
-      this->hw_serial_->swap();
+    if (uart_num_ >= 0) {
+      uart_config_t uart_config{};
+      uart_config.baud_rate = (int) baud_rate_;
+      uart_config.data_bits = UART_DATA_8_BITS;
+      uart_config.parity = UART_PARITY_DISABLE;
+      uart_config.stop_bits = UART_STOP_BITS_1;
+      uart_config.flow_ctrl = UART_HW_FLOWCTRL_DISABLE;
+      uart_param_config(uart_num_, &uart_config);
+      const int uart_buffer_size = tx_buffer_size_;
+      // Install UART driver using an event queue here
+      uart_driver_install(uart_num_, uart_buffer_size, uart_buffer_size, 10, nullptr, 0);
     }
-    this->hw_serial_->setDebugOutput(ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE);
-#endif
-#endif  // USE_ARDUINO
+#endif  // USE_ESP_IDF
   }
 #ifdef USE_ESP8266
   else {
     uart_set_debug(UART_NO);
   }
-#endif
+#endif  // USE_ESP8266
 
   global_logger = this;
 #if defined(USE_ESP_IDF) || defined(USE_ESP32_FRAMEWORK_ARDUINO)
@@ -209,7 +237,7 @@ void Logger::pre_setup() {
   if (ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE) {
     esp_log_level_set("*", ESP_LOG_VERBOSE);
   }
-#endif
+#endif  // USE_ESP_IDF || USE_ESP32_FRAMEWORK_ARDUINO
 
   ESP_LOGI(TAG, "Log initialized");
 }
@@ -224,11 +252,24 @@ void Logger::add_on_log_callback(std::function<void(int, const char *, const cha
 float Logger::get_setup_priority() const { return setup_priority::BUS + 500.0f; }
 const char *const LOG_LEVELS[] = {"NONE", "ERROR", "WARN", "INFO", "CONFIG", "DEBUG", "VERBOSE", "VERY_VERBOSE"};
 #ifdef USE_ESP32
-const char *const UART_SELECTIONS[] = {"UART0", "UART1", "UART2"};
-#endif
+const char *const UART_SELECTIONS[] = {
+    "UART0",           "UART1",
+#if !defined(USE_ESP32_VARIANT_ESP32C3) && !defined(USE_ESP32_VARIANT_ESP32S2) && !defined(USE_ESP32_VARIANT_ESP32S3)
+    "UART2",
+#endif  // !USE_ESP32_VARIANT_ESP32C3 && !USE_ESP32_VARIANT_ESP32S2 && !USE_ESP32_VARIANT_ESP32S3
+#if defined(USE_ESP_IDF)
+#if defined(USE_ESP32_VARIANT_ESP32S2) || defined(USE_ESP32_VARIANT_ESP32S3)
+    "USB_CDC",
+#endif  // USE_ESP32_VARIANT_ESP32S2 || USE_ESP32_VARIANT_ESP32S3
+#if defined(USE_ESP32_VARIANT_ESP32C3) || defined(USE_ESP32_VARIANT_ESP32S3)
+    "USB_SERIAL_JTAG",
+#endif  // USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32S3
+#endif  // USE_ESP_IDF
+};
+#endif  // USE_ESP32
 #ifdef USE_ESP8266
 const char *const UART_SELECTIONS[] = {"UART0", "UART1", "UART0_SWAP"};
-#endif
+#endif  // USE_ESP8266
 void Logger::dump_config() {
   ESP_LOGCONFIG(TAG, "Logger:");
   ESP_LOGCONFIG(TAG, "  Level: %s", LOG_LEVELS[ESPHOME_LOG_LEVEL]);

esphome/components/logger/logger.h

@@ -24,9 +24,19 @@ namespace logger {
 enum UARTSelection {
   UART_SELECTION_UART0 = 0,
   UART_SELECTION_UART1,
-#if defined(USE_ESP32) && !defined(USE_ESP32_VARIANT_ESP32C3) && !defined(USE_ESP32_VARIANT_ESP32S2)
+#if defined(USE_ESP32)
+#if !defined(USE_ESP32_VARIANT_ESP32C3) && !defined(USE_ESP32_VARIANT_ESP32S2) && !defined(USE_ESP32_VARIANT_ESP32S3)
   UART_SELECTION_UART2,
 #endif
+#ifdef USE_ESP_IDF
+#if defined(USE_ESP32_VARIANT_ESP32S2) || defined(USE_ESP32_VARIANT_ESP32S3)
+  UART_SELECTION_USB_CDC,
+#endif
+#if defined(USE_ESP32_VARIANT_ESP32C3) || defined(USE_ESP32_VARIANT_ESP32S3)
+  UART_SELECTION_USB_SERIAL_JTAG,
+#endif
+#endif
+#endif
 #ifdef USE_ESP8266
   UART_SELECTION_UART0_SWAP,
 #endif
@@ -40,7 +50,7 @@ class Logger : public Component {
   void set_baud_rate(uint32_t baud_rate);
   uint32_t get_baud_rate() const { return baud_rate_; }
 #ifdef USE_ARDUINO
-  HardwareSerial *get_hw_serial() const { return hw_serial_; }
+  Stream *get_hw_serial() const { return hw_serial_; }
 #endif
 #ifdef USE_ESP_IDF
   uart_port_t get_uart_num() const { return uart_num_; }
@@ -119,7 +129,7 @@ class Logger : public Component {
   int tx_buffer_size_{0};
   UARTSelection uart_{UART_SELECTION_UART0};
 #ifdef USE_ARDUINO
-  HardwareSerial *hw_serial_{nullptr};
+  Stream *hw_serial_{nullptr};
 #endif
 #ifdef USE_ESP_IDF
   uart_port_t uart_num_;

esphome/components/mcp3204/mcp3204.cpp

@@ -20,7 +20,7 @@ void MCP3204::dump_config() {
 }
 
 float MCP3204::read_data(uint8_t pin) {
-  uint8_t adc_primary_config = 0b00000110 & 0b00000111;
+  uint8_t adc_primary_config = 0b00000110 | (pin >> 2);
   uint8_t adc_secondary_config = pin << 6;
   this->enable();
   this->transfer_byte(adc_primary_config);

esphome/components/mcp3204/sensor/__init__.py

@@ -17,7 +17,7 @@ CONFIG_SCHEMA = sensor.SENSOR_SCHEMA.extend(
     {
         cv.GenerateID(): cv.declare_id(MCP3204Sensor),
         cv.GenerateID(CONF_MCP3204_ID): cv.use_id(MCP3204),
-        cv.Required(CONF_NUMBER): cv.int_range(min=0, max=3),
+        cv.Required(CONF_NUMBER): cv.int_range(min=0, max=7),
     }
 ).extend(cv.polling_component_schema("60s"))
 

esphome/components/modbus_controller/__init__.py

@@ -71,9 +71,9 @@ SENSOR_VALUE_TYPE = {
     "S_DWORD": SensorValueType.S_DWORD,
     "S_DWORD_R": SensorValueType.S_DWORD_R,
     "U_QWORD": SensorValueType.U_QWORD,
-    "U_QWORDU_R": SensorValueType.U_QWORD_R,
+    "U_QWORD_R": SensorValueType.U_QWORD_R,
     "S_QWORD": SensorValueType.S_QWORD,
-    "U_QWORD_R": SensorValueType.S_QWORD_R,
+    "S_QWORD_R": SensorValueType.S_QWORD_R,
     "FP32": SensorValueType.FP32,
     "FP32_R": SensorValueType.FP32_R,
 }
@@ -87,9 +87,9 @@ TYPE_REGISTER_MAP = {
     "S_DWORD": 2,
     "S_DWORD_R": 2,
     "U_QWORD": 4,
-    "U_QWORDU_R": 4,
-    "S_QWORD": 4,
     "U_QWORD_R": 4,
+    "S_QWORD": 4,
+    "S_QWORD_R": 4,
     "FP32": 2,
     "FP32_R": 2,
 }

esphome/components/modbus_controller/modbus_controller.cpp

@@ -455,6 +455,28 @@ ModbusCommandItem ModbusCommandItem::create_custom_command(
   return cmd;
 }
 
+ModbusCommandItem ModbusCommandItem::create_custom_command(
+    ModbusController *modbusdevice, const std::vector<uint16_t> &values,
+    std::function<void(ModbusRegisterType register_type, uint16_t start_address, const std::vector<uint8_t> &data)>
+        &&handler) {
+  ModbusCommandItem cmd = {};
+  cmd.modbusdevice = modbusdevice;
+  cmd.function_code = ModbusFunctionCode::CUSTOM;
+  if (handler == nullptr) {
+    cmd.on_data_func = [](ModbusRegisterType register_type, uint16_t start_address, const std::vector<uint8_t> &data) {
+      ESP_LOGI(TAG, "Custom Command sent");
+    };
+  } else {
+    cmd.on_data_func = handler;
+  }
+  for (auto v : values) {
+    cmd.payload.push_back((v >> 8) & 0xFF);
+    cmd.payload.push_back(v & 0xFF);
+  }
+
+  return cmd;
+}
+
 bool ModbusCommandItem::send() {
   if (this->function_code != ModbusFunctionCode::CUSTOM) {
     modbusdevice->send(uint8_t(this->function_code), this->register_address, this->register_count, this->payload.size(),

esphome/components/modbus_controller/modbus_controller.h

@@ -2,12 +2,12 @@
 
 #include "esphome/core/component.h"
 
-#include "esphome/core/automation.h"
 #include "esphome/components/modbus/modbus.h"
+#include "esphome/core/automation.h"
 
 #include <list>
-#include <set>
 #include <queue>
+#include <set>
 #include <vector>
 
 namespace esphome {
@@ -374,8 +374,8 @@ class ModbusCommandItem {
                                                        const std::vector<bool> &values);
   /** Create custom modbus command
    * @param modbusdevice pointer to the device to execute the command
-   * @param values byte vector of data to be sent to the device. The compplete payload must be provided with the
-   * exception of the crc codess
+   * @param values byte vector of data to be sent to the device. The complete payload must be provided with the
+   * exception of the crc codes
    * @param handler function called when the response is received. Default is just logging a response
    * @return ModbusCommandItem with the prepared command
    */
@@ -383,6 +383,18 @@ class ModbusCommandItem {
       ModbusController *modbusdevice, const std::vector<uint8_t> &values,
       std::function<void(ModbusRegisterType register_type, uint16_t start_address, const std::vector<uint8_t> &data)>
           &&handler = nullptr);
+
+  /** Create custom modbus command
+   * @param modbusdevice pointer to the device to execute the command
+   * @param values word vector of data to be sent to the device. The complete payload must be provided with the
+   * exception of the crc codes
+   * @param handler function called when the response is received. Default is just logging a response
+   * @return ModbusCommandItem with the prepared command
+   */
+  static ModbusCommandItem create_custom_command(
+      ModbusController *modbusdevice, const std::vector<uint16_t> &values,
+      std::function<void(ModbusRegisterType register_type, uint16_t start_address, const std::vector<uint8_t> &data)>
+          &&handler = nullptr);
 };
 
 /** Modbus controller class.

esphome/components/modbus_controller/number/__init__.py

@@ -11,6 +11,7 @@ from esphome.const import (
 )
 
 from .. import (
+    MODBUS_WRITE_REGISTER_TYPE,
     add_modbus_base_properties,
     modbus_controller_ns,
     modbus_calc_properties,
@@ -24,6 +25,7 @@ from ..const import (
     CONF_CUSTOM_COMMAND,
     CONF_FORCE_NEW_RANGE,
     CONF_MODBUS_CONTROLLER_ID,
+    CONF_REGISTER_TYPE,
     CONF_SKIP_UPDATES,
     CONF_USE_WRITE_MULTIPLE,
     CONF_VALUE_TYPE,
@@ -61,6 +63,9 @@ CONFIG_SCHEMA = cv.All(
     number.NUMBER_SCHEMA.extend(ModbusItemBaseSchema).extend(
         {
             cv.GenerateID(): cv.declare_id(ModbusNumber),
+            cv.Optional(CONF_REGISTER_TYPE, default="holding"): cv.enum(
+                MODBUS_WRITE_REGISTER_TYPE
+            ),
             cv.Optional(CONF_VALUE_TYPE, default="U_WORD"): cv.enum(SENSOR_VALUE_TYPE),
             cv.Optional(CONF_WRITE_LAMBDA): cv.returning_lambda,
             # 24 bits are the maximum value for fp32 before precison is lost
@@ -81,6 +86,7 @@ async def to_code(config):
     byte_offset, reg_count = modbus_calc_properties(config)
     var = cg.new_Pvariable(
         config[CONF_ID],
+        config[CONF_REGISTER_TYPE],
         config[CONF_ADDRESS],
         byte_offset,
         config[CONF_BITMASK],

esphome/components/modbus_controller/number/modbus_number.cpp

@@ -26,6 +26,7 @@ void ModbusNumber::parse_and_publish(const std::vector<uint8_t> &data) {
 }
 
 void ModbusNumber::control(float value) {
+  ModbusCommandItem write_cmd;
   std::vector<uint16_t> data;
   float write_value = value;
   // Is there are lambda configured?
@@ -45,33 +46,39 @@ void ModbusNumber::control(float value) {
     write_value = multiply_by_ * write_value;
   }
 
-  // lambda didn't set payload
-  if (data.empty()) {
-    data = float_to_payload(write_value, this->sensor_value_type);
-  }
-
-  ESP_LOGD(TAG,
-           "Updating register: connected Sensor=%s start address=0x%X register count=%d new value=%.02f (val=%.02f)",
-           this->get_name().c_str(), this->start_address, this->register_count, value, write_value);
-
-  // Create and send the write command
-  ModbusCommandItem write_cmd;
-  if (this->register_count == 1 && !this->use_write_multiple_) {
-    // since offset is in bytes and a register is 16 bits we get the start by adding offset/2
-    write_cmd =
-        ModbusCommandItem::create_write_single_command(parent_, this->start_address + this->offset / 2, data[0]);
+  if (!data.empty()) {
+    ESP_LOGV(TAG, "Modbus Number write raw: %s", format_hex_pretty(data).c_str());
+    write_cmd = ModbusCommandItem::create_custom_command(
+        this->parent_, data,
+        [this, write_cmd](ModbusRegisterType register_type, uint16_t start_address, const std::vector<uint8_t> &data) {
+          this->parent_->on_write_register_response(write_cmd.register_type, this->start_address, data);
+        });
   } else {
-    write_cmd = ModbusCommandItem::create_write_multiple_command(parent_, this->start_address + this->offset / 2,
-                                                                 this->register_count, data);
+    data = float_to_payload(write_value, this->sensor_value_type);
+
+    ESP_LOGD(TAG,
+             "Updating register: connected Sensor=%s start address=0x%X register count=%d new value=%.02f (val=%.02f)",
+             this->get_name().c_str(), this->start_address, this->register_count, value, write_value);
+
+    // Create and send the write command
+    if (this->register_count == 1 && !this->use_write_multiple_) {
+      // since offset is in bytes and a register is 16 bits we get the start by adding offset/2
+      write_cmd =
+          ModbusCommandItem::create_write_single_command(parent_, this->start_address + this->offset / 2, data[0]);
+    } else {
+      write_cmd = ModbusCommandItem::create_write_multiple_command(parent_, this->start_address + this->offset / 2,
+                                                                   this->register_count, data);
+    }
+    // publish new value
+    write_cmd.on_data_func = [this, write_cmd, value](ModbusRegisterType register_type, uint16_t start_address,
+                                                      const std::vector<uint8_t> &data) {
+      // gets called when the write command is ack'd from the device
+      parent_->on_write_register_response(write_cmd.register_type, start_address, data);
+      this->publish_state(value);
+    };
   }
-  // publish new value
-  write_cmd.on_data_func = [this, write_cmd, value](ModbusRegisterType register_type, uint16_t start_address,
-                                                    const std::vector<uint8_t> &data) {
-    // gets called when the write command is ack'd from the device
-    parent_->on_write_register_response(write_cmd.register_type, start_address, data);
-    this->publish_state(value);
-  };
   parent_->queue_command(write_cmd);
+  this->publish_state(value);
 }
 void ModbusNumber::dump_config() { LOG_NUMBER(TAG, "Modbus Number", this); }
 

esphome/components/modbus_controller/number/modbus_number.h

@@ -11,9 +11,9 @@ using value_to_data_t = std::function<float>(float);
 
 class ModbusNumber : public number::Number, public Component, public SensorItem {
  public:
-  ModbusNumber(uint16_t start_address, uint8_t offset, uint32_t bitmask, SensorValueType value_type, int register_count,
-               uint8_t skip_updates, bool force_new_range) {
-    this->register_type = ModbusRegisterType::HOLDING;
+  ModbusNumber(ModbusRegisterType register_type, uint16_t start_address, uint8_t offset, uint32_t bitmask,
+               SensorValueType value_type, int register_count, uint8_t skip_updates, bool force_new_range) {
+    this->register_type = register_type;
     this->start_address = start_address;
     this->offset = offset;
     this->bitmask = bitmask;

esphome/components/modbus_controller/select/__init__.py

@@ -1,8 +1,7 @@
 import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.components import select
-from esphome.const import CONF_ADDRESS, CONF_ID, CONF_LAMBDA
-from esphome.jsonschema import jschema_composite
+from esphome.const import CONF_ADDRESS, CONF_ID, CONF_LAMBDA, CONF_OPTIMISTIC
 
 from .. import (
     SENSOR_VALUE_TYPE,
@@ -30,7 +29,6 @@ ModbusSelect = modbus_controller_ns.class_(
 )
 
 
-@jschema_composite
 def ensure_option_map():
     def validator(value):
         cv.check_not_templatable(value)
@@ -79,6 +77,7 @@ CONFIG_SCHEMA = cv.All(
             cv.Optional(CONF_FORCE_NEW_RANGE, default=False): cv.boolean,
             cv.Required(CONF_OPTIONSMAP): ensure_option_map(),
             cv.Optional(CONF_USE_WRITE_MULTIPLE, default=False): cv.boolean,
+            cv.Optional(CONF_OPTIMISTIC, default=False): cv.boolean,
             cv.Optional(CONF_LAMBDA): cv.returning_lambda,
             cv.Optional(CONF_WRITE_LAMBDA): cv.returning_lambda,
         },
@@ -112,6 +111,7 @@ async def to_code(config):
     cg.add(parent.add_sensor_item(var))
     cg.add(var.set_parent(parent))
     cg.add(var.set_use_write_mutiple(config[CONF_USE_WRITE_MULTIPLE]))
+    cg.add(var.set_optimistic(config[CONF_OPTIMISTIC]))
 
     if CONF_LAMBDA in config:
         template_ = await cg.process_lambda(

esphome/components/modbus_controller/select/modbus_select.cpp

@@ -80,6 +80,9 @@ void ModbusSelect::control(const std::string &value) {
   }
 
   parent_->queue_command(write_cmd);
+
+  if (this->optimistic_)
+    this->publish_state(value);
 }
 
 }  // namespace modbus_controller

esphome/components/modbus_controller/select/modbus_select.h

@@ -32,6 +32,7 @@ class ModbusSelect : public Component, public select::Select, public SensorItem
 
   void set_parent(ModbusController *const parent) { this->parent_ = parent; }
   void set_use_write_mutiple(bool use_write_multiple) { this->use_write_multiple_ = use_write_multiple; }
+  void set_optimistic(bool optimistic) { this->optimistic_ = optimistic; }
   void set_template(transform_func_t &&f) { this->transform_func_ = f; }
   void set_write_template(write_transform_func_t &&f) { this->write_transform_func_ = f; }
 
@@ -43,6 +44,7 @@ class ModbusSelect : public Component, public select::Select, public SensorItem
   std::vector<int64_t> mapping_;
   ModbusController *parent_;
   bool use_write_multiple_{false};
+  bool optimistic_{false};
   optional<transform_func_t> transform_func_;
   optional<write_transform_func_t> write_transform_func_;
 };

esphome/components/mopeka_pro_check/mopeka_pro_check.cpp

@@ -52,7 +52,8 @@ bool MopekaProCheck::parse_device(const esp32_ble_tracker::ESPBTDevice &device)
 
   // Now parse the data - See Datasheet for definition
 
-  if (static_cast<SensorType>(manu_data.data[0]) != STANDARD_BOTTOM_UP) {
+  if (static_cast<SensorType>(manu_data.data[0]) != STANDARD_BOTTOM_UP &&
+      static_cast<SensorType>(manu_data.data[0]) != PLUS_BOTTOM_UP) {
     ESP_LOGE(TAG, "Unsupported Sensor Type (0x%X)", manu_data.data[0]);
     return false;
   }

esphome/components/mopeka_pro_check/mopeka_pro_check.h

@@ -12,7 +12,8 @@ namespace mopeka_pro_check {
 enum SensorType {
   STANDARD_BOTTOM_UP = 0x03,
   TOP_DOWN_AIR_ABOVE = 0x04,
-  BOTTOM_UP_WATER = 0x05
+  BOTTOM_UP_WATER = 0x05,
+  PLUS_BOTTOM_UP = 0x08
   // all other values are reserved
 };
 

esphome/components/mqtt/__init__.py

@@ -9,6 +9,7 @@ from esphome.const import (
     CONF_AVAILABILITY,
     CONF_BIRTH_MESSAGE,
     CONF_BROKER,
+    CONF_CERTIFICATE_AUTHORITY,
     CONF_CLIENT_ID,
     CONF_COMMAND_TOPIC,
     CONF_COMMAND_RETAIN,
@@ -42,9 +43,14 @@ from esphome.const import (
     CONF_WILL_MESSAGE,
 )
 from esphome.core import coroutine_with_priority, CORE
+from esphome.components.esp32 import add_idf_sdkconfig_option
 
 DEPENDENCIES = ["network"]
-AUTO_LOAD = ["json", "async_tcp"]
+
+AUTO_LOAD = ["json"]
+
+CONF_IDF_SEND_ASYNC = "idf_send_async"
+CONF_SKIP_CERT_CN_CHECK = "skip_cert_cn_check"
 
 
 def validate_message_just_topic(value):
@@ -163,6 +169,15 @@ CONFIG_SCHEMA = cv.All(
             cv.Optional(CONF_USERNAME, default=""): cv.string,
             cv.Optional(CONF_PASSWORD, default=""): cv.string,
             cv.Optional(CONF_CLIENT_ID): cv.string,
+            cv.SplitDefault(CONF_IDF_SEND_ASYNC, esp32_idf=False): cv.All(
+                cv.boolean, cv.only_with_esp_idf
+            ),
+            cv.Optional(CONF_CERTIFICATE_AUTHORITY): cv.All(
+                cv.string, cv.only_with_esp_idf
+            ),
+            cv.SplitDefault(CONF_SKIP_CERT_CN_CHECK, esp32_idf=False): cv.All(
+                cv.boolean, cv.only_with_esp_idf
+            ),
             cv.Optional(CONF_DISCOVERY, default=True): cv.Any(
                 cv.boolean, cv.one_of("CLEAN", upper=True)
             ),
@@ -217,7 +232,6 @@ CONFIG_SCHEMA = cv.All(
         }
     ),
     validate_config,
-    cv.only_with_arduino,
 )
 
 
@@ -238,9 +252,11 @@ def exp_mqtt_message(config):
 async def to_code(config):
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
+    # Add required libraries for arduino
+    if CORE.using_arduino:
+        # https://github.com/OttoWinter/async-mqtt-client/blob/master/library.json
+        cg.add_library("ottowinter/AsyncMqttClient-esphome", "0.8.6")
 
-    # https://github.com/OttoWinter/async-mqtt-client/blob/master/library.json
-    cg.add_library("ottowinter/AsyncMqttClient-esphome", "0.8.6")
     cg.add_define("USE_MQTT")
     cg.add_global(mqtt_ns.using)
 
@@ -321,6 +337,19 @@ async def to_code(config):
 
     cg.add(var.set_reboot_timeout(config[CONF_REBOOT_TIMEOUT]))
 
+    # esp-idf only
+    if CONF_CERTIFICATE_AUTHORITY in config:
+        cg.add(var.set_ca_certificate(config[CONF_CERTIFICATE_AUTHORITY]))
+        cg.add(var.set_skip_cert_cn_check(config[CONF_SKIP_CERT_CN_CHECK]))
+
+        # prevent error -0x428e
+        # See https://github.com/espressif/esp-idf/issues/139
+        add_idf_sdkconfig_option("CONFIG_MBEDTLS_HARDWARE_MPI", False)
+
+    if CONF_IDF_SEND_ASYNC in config and config[CONF_IDF_SEND_ASYNC]:
+        cg.add_define("USE_MQTT_IDF_ENQUEUE")
+    # end esp-idf
+
     for conf in config.get(CONF_ON_MESSAGE, []):
         trig = cg.new_Pvariable(conf[CONF_TRIGGER_ID], conf[CONF_TOPIC])
         cg.add(trig.set_qos(conf[CONF_QOS]))

esphome/components/mqtt/mqtt_backend.h

@@ -0,0 +1,69 @@
+#pragma once
+
+#include <string>
+#include <map>
+#include "esphome/components/network/ip_address.h"
+#include "esphome/core/helpers.h"
+
+namespace esphome {
+namespace mqtt {
+
+enum class MQTTClientDisconnectReason : int8_t {
+  TCP_DISCONNECTED = 0,
+  MQTT_UNACCEPTABLE_PROTOCOL_VERSION = 1,
+  MQTT_IDENTIFIER_REJECTED = 2,
+  MQTT_SERVER_UNAVAILABLE = 3,
+  MQTT_MALFORMED_CREDENTIALS = 4,
+  MQTT_NOT_AUTHORIZED = 5,
+  ESP8266_NOT_ENOUGH_SPACE = 6,
+  TLS_BAD_FINGERPRINT = 7
+};
+
+/// internal struct for MQTT messages.
+struct MQTTMessage {
+  std::string topic;
+  std::string payload;
+  uint8_t qos;  ///< QoS. Only for last will testaments.
+  bool retain;
+};
+
+class MQTTBackend {
+ public:
+  using on_connect_callback_t = void(bool session_present);
+  using on_disconnect_callback_t = void(MQTTClientDisconnectReason reason);
+  using on_subscribe_callback_t = void(uint16_t packet_id, uint8_t qos);
+  using on_unsubscribe_callback_t = void(uint16_t packet_id);
+  using on_message_callback_t = void(const char *topic, const char *payload, size_t len, size_t index, size_t total);
+  using on_publish_user_callback_t = void(uint16_t packet_id);
+
+  virtual void set_keep_alive(uint16_t keep_alive) = 0;
+  virtual void set_client_id(const char *client_id) = 0;
+  virtual void set_clean_session(bool clean_session) = 0;
+  virtual void set_credentials(const char *username, const char *password) = 0;
+  virtual void set_will(const char *topic, uint8_t qos, bool retain, const char *payload) = 0;
+  virtual void set_server(network::IPAddress ip, uint16_t port) = 0;
+  virtual void set_server(const char *host, uint16_t port) = 0;
+  virtual void set_on_connect(std::function<on_connect_callback_t> &&callback) = 0;
+  virtual void set_on_disconnect(std::function<on_disconnect_callback_t> &&callback) = 0;
+  virtual void set_on_subscribe(std::function<on_subscribe_callback_t> &&callback) = 0;
+  virtual void set_on_unsubscribe(std::function<on_unsubscribe_callback_t> &&callback) = 0;
+  virtual void set_on_message(std::function<on_message_callback_t> &&callback) = 0;
+  virtual void set_on_publish(std::function<on_publish_user_callback_t> &&callback) = 0;
+  virtual bool connected() const = 0;
+  virtual void connect() = 0;
+  virtual void disconnect() = 0;
+  virtual bool subscribe(const char *topic, uint8_t qos) = 0;
+  virtual bool unsubscribe(const char *topic) = 0;
+  virtual bool publish(const char *topic, const char *payload, size_t length, uint8_t qos, bool retain) = 0;
+
+  virtual bool publish(const MQTTMessage &message) {
+    return publish(message.topic.c_str(), message.payload.c_str(), message.payload.length(), message.qos,
+                   message.retain);
+  }
+
+  // called from MQTTClient::loop()
+  virtual void loop() {}
+};
+
+}  // namespace mqtt
+}  // namespace esphome

esphome/components/mqtt/mqtt_backend_arduino.h

@@ -0,0 +1,74 @@
+#pragma once
+
+#ifdef USE_ARDUINO
+
+#include "mqtt_backend.h"
+#include <AsyncMqttClient.h>
+
+namespace esphome {
+namespace mqtt {
+
+class MQTTBackendArduino final : public MQTTBackend {
+ public:
+  void set_keep_alive(uint16_t keep_alive) final { mqtt_client_.setKeepAlive(keep_alive); }
+  void set_client_id(const char *client_id) final { mqtt_client_.setClientId(client_id); }
+  void set_clean_session(bool clean_session) final { mqtt_client_.setCleanSession(clean_session); }
+  void set_credentials(const char *username, const char *password) final {
+    mqtt_client_.setCredentials(username, password);
+  }
+  void set_will(const char *topic, uint8_t qos, bool retain, const char *payload) final {
+    mqtt_client_.setWill(topic, qos, retain, payload);
+  }
+  void set_server(network::IPAddress ip, uint16_t port) final {
+    mqtt_client_.setServer(IPAddress(static_cast<uint32_t>(ip)), port);
+  }
+  void set_server(const char *host, uint16_t port) final { mqtt_client_.setServer(host, port); }
+#if ASYNC_TCP_SSL_ENABLED
+  void set_secure(bool secure) { mqtt_client.setSecure(secure); }
+  void add_server_fingerprint(const uint8_t *fingerprint) { mqtt_client.addServerFingerprint(fingerprint); }
+#endif
+
+  void set_on_connect(std::function<on_connect_callback_t> &&callback) final {
+    this->mqtt_client_.onConnect(std::move(callback));
+  }
+  void set_on_disconnect(std::function<on_disconnect_callback_t> &&callback) final {
+    auto async_callback = [callback](AsyncMqttClientDisconnectReason reason) {
+      // int based enum so casting isn't a problem
+      callback(static_cast<MQTTClientDisconnectReason>(reason));
+    };
+    this->mqtt_client_.onDisconnect(std::move(async_callback));
+  }
+  void set_on_subscribe(std::function<on_subscribe_callback_t> &&callback) final {
+    this->mqtt_client_.onSubscribe(std::move(callback));
+  }
+  void set_on_unsubscribe(std::function<on_unsubscribe_callback_t> &&callback) final {
+    this->mqtt_client_.onUnsubscribe(std::move(callback));
+  }
+  void set_on_message(std::function<on_message_callback_t> &&callback) final {
+    auto async_callback = [callback](const char *topic, const char *payload,
+                                     AsyncMqttClientMessageProperties async_properties, size_t len, size_t index,
+                                     size_t total) { callback(topic, payload, len, index, total); };
+    mqtt_client_.onMessage(std::move(async_callback));
+  }
+  void set_on_publish(std::function<on_publish_user_callback_t> &&callback) final {
+    this->mqtt_client_.onPublish(std::move(callback));
+  }
+
+  bool connected() const final { return mqtt_client_.connected(); }
+  void connect() final { mqtt_client_.connect(); }
+  void disconnect() final { mqtt_client_.disconnect(true); }
+  bool subscribe(const char *topic, uint8_t qos) final { return mqtt_client_.subscribe(topic, qos) != 0; }
+  bool unsubscribe(const char *topic) final { return mqtt_client_.unsubscribe(topic) != 0; }
+  bool publish(const char *topic, const char *payload, size_t length, uint8_t qos, bool retain) final {
+    return mqtt_client_.publish(topic, qos, retain, payload, length, false, 0) != 0;
+  }
+  using MQTTBackend::publish;
+
+ protected:
+  AsyncMqttClient mqtt_client_;
+};
+
+}  // namespace mqtt
+}  // namespace esphome
+
+#endif  // defined(USE_ARDUINO)

esphome/components/mqtt/mqtt_backend_idf.cpp

@@ -0,0 +1,149 @@
+#ifdef USE_ESP_IDF
+
+#include <string>
+#include "mqtt_backend_idf.h"
+#include "esphome/core/log.h"
+#include "esphome/core/helpers.h"
+
+namespace esphome {
+namespace mqtt {
+
+static const char *const TAG = "mqtt.idf";
+
+bool MQTTBackendIDF::initialize_() {
+  mqtt_cfg_.user_context = (void *) this;
+  mqtt_cfg_.buffer_size = MQTT_BUFFER_SIZE;
+
+  mqtt_cfg_.host = this->host_.c_str();
+  mqtt_cfg_.port = this->port_;
+  mqtt_cfg_.keepalive = this->keep_alive_;
+  mqtt_cfg_.disable_clean_session = !this->clean_session_;
+
+  if (!this->username_.empty()) {
+    mqtt_cfg_.username = this->username_.c_str();
+    if (!this->password_.empty()) {
+      mqtt_cfg_.password = this->password_.c_str();
+    }
+  }
+
+  if (!this->lwt_topic_.empty()) {
+    mqtt_cfg_.lwt_topic = this->lwt_topic_.c_str();
+    this->mqtt_cfg_.lwt_qos = this->lwt_qos_;
+    this->mqtt_cfg_.lwt_retain = this->lwt_retain_;
+
+    if (!this->lwt_message_.empty()) {
+      mqtt_cfg_.lwt_msg = this->lwt_message_.c_str();
+      mqtt_cfg_.lwt_msg_len = this->lwt_message_.size();
+    }
+  }
+
+  if (!this->client_id_.empty()) {
+    mqtt_cfg_.client_id = this->client_id_.c_str();
+  }
+  if (ca_certificate_.has_value()) {
+    mqtt_cfg_.cert_pem = ca_certificate_.value().c_str();
+    mqtt_cfg_.skip_cert_common_name_check = skip_cert_cn_check_;
+    mqtt_cfg_.transport = MQTT_TRANSPORT_OVER_SSL;
+  } else {
+    mqtt_cfg_.transport = MQTT_TRANSPORT_OVER_TCP;
+  }
+  auto *mqtt_client = esp_mqtt_client_init(&mqtt_cfg_);
+  if (mqtt_client) {
+    handler_.reset(mqtt_client);
+    is_initalized_ = true;
+    esp_mqtt_client_register_event(mqtt_client, MQTT_EVENT_ANY, mqtt_event_handler, this);
+    return true;
+  } else {
+    ESP_LOGE(TAG, "Failed to initialize IDF-MQTT");
+    return false;
+  }
+}
+
+void MQTTBackendIDF::loop() {
+  // process new events
+  // handle only 1 message per loop iteration
+  if (!mqtt_events_.empty()) {
+    auto &event = mqtt_events_.front();
+    mqtt_event_handler_(event);
+    mqtt_events_.pop();
+  }
+}
+
+void MQTTBackendIDF::mqtt_event_handler_(const esp_mqtt_event_t &event) {
+  ESP_LOGV(TAG, "Event dispatched from event loop event_id=%d", event.event_id);
+  switch (event.event_id) {
+    case MQTT_EVENT_BEFORE_CONNECT:
+      ESP_LOGV(TAG, "MQTT_EVENT_BEFORE_CONNECT");
+      break;
+
+    case MQTT_EVENT_CONNECTED:
+      ESP_LOGV(TAG, "MQTT_EVENT_CONNECTED");
+      // TODO session present check
+      this->is_connected_ = true;
+      this->on_connect_.call(!mqtt_cfg_.disable_clean_session);
+      break;
+    case MQTT_EVENT_DISCONNECTED:
+      ESP_LOGV(TAG, "MQTT_EVENT_DISCONNECTED");
+      // TODO is there a way to get the disconnect reason?
+      this->is_connected_ = false;
+      this->on_disconnect_.call(MQTTClientDisconnectReason::TCP_DISCONNECTED);
+      break;
+
+    case MQTT_EVENT_SUBSCRIBED:
+      ESP_LOGV(TAG, "MQTT_EVENT_SUBSCRIBED, msg_id=%d", event.msg_id);
+      // hardcode QoS to 0. QoS is not used in this context but required to mirror the AsyncMqtt interface
+      this->on_subscribe_.call((int) event.msg_id, 0);
+      break;
+    case MQTT_EVENT_UNSUBSCRIBED:
+      ESP_LOGV(TAG, "MQTT_EVENT_UNSUBSCRIBED, msg_id=%d", event.msg_id);
+      this->on_unsubscribe_.call((int) event.msg_id);
+      break;
+    case MQTT_EVENT_PUBLISHED:
+      ESP_LOGV(TAG, "MQTT_EVENT_PUBLISHED, msg_id=%d", event.msg_id);
+      this->on_publish_.call((int) event.msg_id);
+      break;
+    case MQTT_EVENT_DATA: {
+      static std::string topic;
+      if (event.topic) {
+        // not 0 terminated - create a string from it
+        topic = std::string(event.topic, event.topic_len);
+      }
+      ESP_LOGV(TAG, "MQTT_EVENT_DATA %s", topic.c_str());
+      auto data_len = event.data_len;
+      if (data_len == 0)
+        data_len = strlen(event.data);
+      this->on_message_.call(event.topic ? const_cast<char *>(topic.c_str()) : nullptr, event.data, data_len,
+                             event.current_data_offset, event.total_data_len);
+    } break;
+    case MQTT_EVENT_ERROR:
+      ESP_LOGE(TAG, "MQTT_EVENT_ERROR");
+      if (event.error_handle->error_type == MQTT_ERROR_TYPE_TCP_TRANSPORT) {
+        ESP_LOGE(TAG, "Last error code reported from esp-tls: 0x%x", event.error_handle->esp_tls_last_esp_err);
+        ESP_LOGE(TAG, "Last tls stack error number: 0x%x", event.error_handle->esp_tls_stack_err);
+        ESP_LOGE(TAG, "Last captured errno : %d (%s)", event.error_handle->esp_transport_sock_errno,
+                 strerror(event.error_handle->esp_transport_sock_errno));
+      } else if (event.error_handle->error_type == MQTT_ERROR_TYPE_CONNECTION_REFUSED) {
+        ESP_LOGE(TAG, "Connection refused error: 0x%x", event.error_handle->connect_return_code);
+      } else {
+        ESP_LOGE(TAG, "Unknown error type: 0x%x", event.error_handle->error_type);
+      }
+      break;
+    default:
+      ESP_LOGV(TAG, "Other event id:%d", event.event_id);
+      break;
+  }
+}
+
+/// static - Dispatch event to instance method
+void MQTTBackendIDF::mqtt_event_handler(void *handler_args, esp_event_base_t base, int32_t event_id, void *event_data) {
+  MQTTBackendIDF *instance = static_cast<MQTTBackendIDF *>(handler_args);
+  // queue event to decouple processing
+  if (instance) {
+    auto event = *static_cast<esp_mqtt_event_t *>(event_data);
+    instance->mqtt_events_.push(event);
+  }
+}
+
+}  // namespace mqtt
+}  // namespace esphome
+#endif  // USE_ESP_IDF

esphome/components/mqtt/mqtt_backend_idf.h

@@ -0,0 +1,143 @@
+#pragma once
+
+#ifdef USE_ESP_IDF
+
+#include <string>
+#include <queue>
+#include <mqtt_client.h>
+#include "esphome/components/network/ip_address.h"
+#include "esphome/core/helpers.h"
+#include "mqtt_backend.h"
+
+namespace esphome {
+namespace mqtt {
+
+class MQTTBackendIDF final : public MQTTBackend {
+ public:
+  static const size_t MQTT_BUFFER_SIZE = 4096;
+
+  void set_keep_alive(uint16_t keep_alive) final { this->keep_alive_ = keep_alive; }
+  void set_client_id(const char *client_id) final { this->client_id_ = client_id; }
+  void set_clean_session(bool clean_session) final { this->clean_session_ = clean_session; }
+
+  void set_credentials(const char *username, const char *password) final {
+    if (username)
+      this->username_ = username;
+    if (password)
+      this->password_ = password;
+  }
+  void set_will(const char *topic, uint8_t qos, bool retain, const char *payload) final {
+    if (topic)
+      this->lwt_topic_ = topic;
+    this->lwt_qos_ = qos;
+    if (payload)
+      this->lwt_message_ = payload;
+    this->lwt_retain_ = retain;
+  }
+  void set_server(network::IPAddress ip, uint16_t port) final {
+    this->host_ = ip.str();
+    this->port_ = port;
+  }
+  void set_server(const char *host, uint16_t port) final {
+    this->host_ = host;
+    this->port_ = port;
+  }
+  void set_on_connect(std::function<on_connect_callback_t> &&callback) final {
+    this->on_connect_.add(std::move(callback));
+  }
+  void set_on_disconnect(std::function<on_disconnect_callback_t> &&callback) final {
+    this->on_disconnect_.add(std::move(callback));
+  }
+  void set_on_subscribe(std::function<on_subscribe_callback_t> &&callback) final {
+    this->on_subscribe_.add(std::move(callback));
+  }
+  void set_on_unsubscribe(std::function<on_unsubscribe_callback_t> &&callback) final {
+    this->on_unsubscribe_.add(std::move(callback));
+  }
+  void set_on_message(std::function<on_message_callback_t> &&callback) final {
+    this->on_message_.add(std::move(callback));
+  }
+  void set_on_publish(std::function<on_publish_user_callback_t> &&callback) final {
+    this->on_publish_.add(std::move(callback));
+  }
+  bool connected() const final { return this->is_connected_; }
+
+  void connect() final {
+    if (!is_initalized_) {
+      if (initialize_()) {
+        esp_mqtt_client_start(handler_.get());
+      }
+    }
+  }
+  void disconnect() final {
+    if (is_initalized_)
+      esp_mqtt_client_disconnect(handler_.get());
+  }
+
+  bool subscribe(const char *topic, uint8_t qos) final {
+    return esp_mqtt_client_subscribe(handler_.get(), topic, qos) != -1;
+  }
+  bool unsubscribe(const char *topic) final { return esp_mqtt_client_unsubscribe(handler_.get(), topic) != -1; }
+
+  bool publish(const char *topic, const char *payload, size_t length, uint8_t qos, bool retain) final {
+#if defined(USE_MQTT_IDF_ENQUEUE)
+    // use the non-blocking version
+    // it can delay sending a couple of seconds but won't block
+    return esp_mqtt_client_enqueue(handler_.get(), topic, payload, length, qos, retain, true) != -1;
+#else
+    // might block for several seconds, either due to network timeout (10s)
+    // or if publishing payloads longer than internal buffer (due to message fragmentation)
+    return esp_mqtt_client_publish(handler_.get(), topic, payload, length, qos, retain) != -1;
+#endif
+  }
+  using MQTTBackend::publish;
+
+  void loop() final;
+
+  void set_ca_certificate(const std::string &cert) { ca_certificate_ = cert; }
+  void set_skip_cert_cn_check(bool skip_check) { skip_cert_cn_check_ = skip_check; }
+
+ protected:
+  bool initialize_();
+  void mqtt_event_handler_(const esp_mqtt_event_t &event);
+  static void mqtt_event_handler(void *handler_args, esp_event_base_t base, int32_t event_id, void *event_data);
+
+  struct MqttClientDeleter {
+    void operator()(esp_mqtt_client *client_handler) { esp_mqtt_client_destroy(client_handler); }
+  };
+  using ClientHandler_ = std::unique_ptr<esp_mqtt_client, MqttClientDeleter>;
+  ClientHandler_ handler_;
+
+  bool is_connected_{false};
+  bool is_initalized_{false};
+
+  esp_mqtt_client_config_t mqtt_cfg_{};
+
+  std::string host_;
+  uint16_t port_;
+  std::string username_;
+  std::string password_;
+  std::string lwt_topic_;
+  std::string lwt_message_;
+  uint8_t lwt_qos_;
+  bool lwt_retain_;
+  std::string client_id_;
+  uint16_t keep_alive_;
+  bool clean_session_;
+  optional<std::string> ca_certificate_;
+  bool skip_cert_cn_check_{false};
+
+  // callbacks
+  CallbackManager<on_connect_callback_t> on_connect_;
+  CallbackManager<on_disconnect_callback_t> on_disconnect_;
+  CallbackManager<on_subscribe_callback_t> on_subscribe_;
+  CallbackManager<on_unsubscribe_callback_t> on_unsubscribe_;
+  CallbackManager<on_message_callback_t> on_message_;
+  CallbackManager<on_publish_user_callback_t> on_publish_;
+  std::queue<esp_mqtt_event_t> mqtt_events_;
+};
+
+}  // namespace mqtt
+}  // namespace esphome
+
+#endif

esphome/components/mqtt/mqtt_client.cpp

@@ -27,21 +27,21 @@ MQTTClientComponent::MQTTClientComponent() {
 // Connection
 void MQTTClientComponent::setup() {
   ESP_LOGCONFIG(TAG, "Setting up MQTT...");
-  this->mqtt_client_.onMessage([this](char const *topic, char *payload, AsyncMqttClientMessageProperties properties,
-                                      size_t len, size_t index, size_t total) {
-    if (index == 0)
-      this->payload_buffer_.reserve(total);
+  this->mqtt_backend_.set_on_message(
+      [this](const char *topic, const char *payload, size_t len, size_t index, size_t total) {
+        if (index == 0)
+          this->payload_buffer_.reserve(total);
 
-    // append new payload, may contain incomplete MQTT message
-    this->payload_buffer_.append(payload, len);
+        // append new payload, may contain incomplete MQTT message
+        this->payload_buffer_.append(payload, len);
 
-    // MQTT fully received
-    if (len + index == total) {
-      this->on_message(topic, this->payload_buffer_);
-      this->payload_buffer_.clear();
-    }
-  });
-  this->mqtt_client_.onDisconnect([this](AsyncMqttClientDisconnectReason reason) {
+        // MQTT fully received
+        if (len + index == total) {
+          this->on_message(topic, this->payload_buffer_);
+          this->payload_buffer_.clear();
+        }
+      });
+  this->mqtt_backend_.set_on_disconnect([this](MQTTClientDisconnectReason reason) {
     this->state_ = MQTT_CLIENT_DISCONNECTED;
     this->disconnect_reason_ = reason;
   });
@@ -49,8 +49,10 @@ void MQTTClientComponent::setup() {
   if (this->is_log_message_enabled() && logger::global_logger != nullptr) {
     logger::global_logger->add_on_log_callback([this](int level, const char *tag, const char *message) {
       if (level <= this->log_level_ && this->is_connected()) {
-        this->publish(this->log_message_.topic, message, strlen(message), this->log_message_.qos,
-                      this->log_message_.retain);
+        this->publish({.topic = this->log_message_.topic,
+                       .payload = message,
+                       .qos = this->log_message_.qos,
+                       .retain = this->log_message_.retain});
       }
     });
   }
@@ -173,9 +175,9 @@ void MQTTClientComponent::start_connect_() {
 
   ESP_LOGI(TAG, "Connecting to MQTT...");
   // Force disconnect first
-  this->mqtt_client_.disconnect(true);
+  this->mqtt_backend_.disconnect();
 
-  this->mqtt_client_.setClientId(this->credentials_.client_id.c_str());
+  this->mqtt_backend_.set_client_id(this->credentials_.client_id.c_str());
   const char *username = nullptr;
   if (!this->credentials_.username.empty())
     username = this->credentials_.username.c_str();
@@ -183,24 +185,24 @@ void MQTTClientComponent::start_connect_() {
   if (!this->credentials_.password.empty())
     password = this->credentials_.password.c_str();
 
-  this->mqtt_client_.setCredentials(username, password);
+  this->mqtt_backend_.set_credentials(username, password);
 
-  this->mqtt_client_.setServer((uint32_t) this->ip_, this->credentials_.port);
+  this->mqtt_backend_.set_server((uint32_t) this->ip_, this->credentials_.port);
   if (!this->last_will_.topic.empty()) {
-    this->mqtt_client_.setWill(this->last_will_.topic.c_str(), this->last_will_.qos, this->last_will_.retain,
-                               this->last_will_.payload.c_str(), this->last_will_.payload.length());
+    this->mqtt_backend_.set_will(this->last_will_.topic.c_str(), this->last_will_.qos, this->last_will_.retain,
+                                 this->last_will_.payload.c_str());
   }
 
-  this->mqtt_client_.connect();
+  this->mqtt_backend_.connect();
   this->state_ = MQTT_CLIENT_CONNECTING;
   this->connect_begin_ = millis();
 }
 bool MQTTClientComponent::is_connected() {
-  return this->state_ == MQTT_CLIENT_CONNECTED && this->mqtt_client_.connected();
+  return this->state_ == MQTT_CLIENT_CONNECTED && this->mqtt_backend_.connected();
 }
 
 void MQTTClientComponent::check_connected() {
-  if (!this->mqtt_client_.connected()) {
+  if (!this->mqtt_backend_.connected()) {
     if (millis() - this->connect_begin_ > 60000) {
       this->state_ = MQTT_CLIENT_DISCONNECTED;
       this->start_dnslookup_();
@@ -222,31 +224,34 @@ void MQTTClientComponent::check_connected() {
 }
 
 void MQTTClientComponent::loop() {
+  // Call the backend loop first
+  mqtt_backend_.loop();
+
   if (this->disconnect_reason_.has_value()) {
     const LogString *reason_s;
     switch (*this->disconnect_reason_) {
-      case AsyncMqttClientDisconnectReason::TCP_DISCONNECTED:
+      case MQTTClientDisconnectReason::TCP_DISCONNECTED:
         reason_s = LOG_STR("TCP disconnected");
         break;
-      case AsyncMqttClientDisconnectReason::MQTT_UNACCEPTABLE_PROTOCOL_VERSION:
+      case MQTTClientDisconnectReason::MQTT_UNACCEPTABLE_PROTOCOL_VERSION:
         reason_s = LOG_STR("Unacceptable Protocol Version");
         break;
-      case AsyncMqttClientDisconnectReason::MQTT_IDENTIFIER_REJECTED:
+      case MQTTClientDisconnectReason::MQTT_IDENTIFIER_REJECTED:
         reason_s = LOG_STR("Identifier Rejected");
         break;
-      case AsyncMqttClientDisconnectReason::MQTT_SERVER_UNAVAILABLE:
+      case MQTTClientDisconnectReason::MQTT_SERVER_UNAVAILABLE:
         reason_s = LOG_STR("Server Unavailable");
         break;
-      case AsyncMqttClientDisconnectReason::MQTT_MALFORMED_CREDENTIALS:
+      case MQTTClientDisconnectReason::MQTT_MALFORMED_CREDENTIALS:
         reason_s = LOG_STR("Malformed Credentials");
         break;
-      case AsyncMqttClientDisconnectReason::MQTT_NOT_AUTHORIZED:
+      case MQTTClientDisconnectReason::MQTT_NOT_AUTHORIZED:
         reason_s = LOG_STR("Not Authorized");
         break;
-      case AsyncMqttClientDisconnectReason::ESP8266_NOT_ENOUGH_SPACE:
+      case MQTTClientDisconnectReason::ESP8266_NOT_ENOUGH_SPACE:
         reason_s = LOG_STR("Not Enough Space");
         break;
-      case AsyncMqttClientDisconnectReason::TLS_BAD_FINGERPRINT:
+      case MQTTClientDisconnectReason::TLS_BAD_FINGERPRINT:
         reason_s = LOG_STR("TLS Bad Fingerprint");
         break;
       default:
@@ -275,7 +280,7 @@ void MQTTClientComponent::loop() {
       this->check_connected();
       break;
     case MQTT_CLIENT_CONNECTED:
-      if (!this->mqtt_client_.connected()) {
+      if (!this->mqtt_backend_.connected()) {
         this->state_ = MQTT_CLIENT_DISCONNECTED;
         ESP_LOGW(TAG, "Lost MQTT Client connection!");
         this->start_dnslookup_();
@@ -302,10 +307,10 @@ bool MQTTClientComponent::subscribe_(const char *topic, uint8_t qos) {
   if (!this->is_connected())
     return false;
 
-  uint16_t ret = this->mqtt_client_.subscribe(topic, qos);
+  bool ret = this->mqtt_backend_.subscribe(topic, qos);
   yield();
 
-  if (ret != 0) {
+  if (ret) {
     ESP_LOGV(TAG, "subscribe(topic='%s')", topic);
   } else {
     delay(5);
@@ -360,9 +365,9 @@ void MQTTClientComponent::subscribe_json(const std::string &topic, const mqtt_js
 }
 
 void MQTTClientComponent::unsubscribe(const std::string &topic) {
-  uint16_t ret = this->mqtt_client_.unsubscribe(topic.c_str());
+  bool ret = this->mqtt_backend_.unsubscribe(topic.c_str());
   yield();
-  if (ret != 0) {
+  if (ret) {
     ESP_LOGV(TAG, "unsubscribe(topic='%s')", topic.c_str());
   } else {
     delay(5);
@@ -387,34 +392,35 @@ bool MQTTClientComponent::publish(const std::string &topic, const std::string &p
 
 bool MQTTClientComponent::publish(const std::string &topic, const char *payload, size_t payload_length, uint8_t qos,
                                   bool retain) {
+  return publish({.topic = topic, .payload = payload, .qos = qos, .retain = retain});
+}
+
+bool MQTTClientComponent::publish(const MQTTMessage &message) {
   if (!this->is_connected()) {
     // critical components will re-transmit their messages
     return false;
   }
-  bool logging_topic = topic == this->log_message_.topic;
-  uint16_t ret = this->mqtt_client_.publish(topic.c_str(), qos, retain, payload, payload_length);
+  bool logging_topic = this->log_message_.topic == message.topic;
+  bool ret = this->mqtt_backend_.publish(message);
   delay(0);
-  if (ret == 0 && !logging_topic && this->is_connected()) {
+  if (!ret && !logging_topic && this->is_connected()) {
     delay(0);
-    ret = this->mqtt_client_.publish(topic.c_str(), qos, retain, payload, payload_length);
+    ret = this->mqtt_backend_.publish(message);
     delay(0);
   }
 
   if (!logging_topic) {
-    if (ret != 0) {
-      ESP_LOGV(TAG, "Publish(topic='%s' payload='%s' retain=%d)", topic.c_str(), payload, retain);
+    if (ret) {
+      ESP_LOGV(TAG, "Publish(topic='%s' payload='%s' retain=%d)", message.topic.c_str(), message.payload.c_str(),
+               message.retain);
     } else {
-      ESP_LOGV(TAG, "Publish failed for topic='%s' (len=%u). will retry later..", topic.c_str(),
-               payload_length);  // NOLINT
+      ESP_LOGV(TAG, "Publish failed for topic='%s' (len=%u). will retry later..", message.topic.c_str(),
+               message.payload.length());
       this->status_momentary_warning("publish", 1000);
     }
   }
   return ret != 0;
 }
-
-bool MQTTClientComponent::publish(const MQTTMessage &message) {
-  return this->publish(message.topic, message.payload, message.qos, message.retain);
-}
 bool MQTTClientComponent::publish_json(const std::string &topic, const json::json_build_t &f, uint8_t qos,
                                        bool retain) {
   std::string message = json::build_json(f);
@@ -499,10 +505,10 @@ bool MQTTClientComponent::is_log_message_enabled() const { return !this->log_mes
 void MQTTClientComponent::set_reboot_timeout(uint32_t reboot_timeout) { this->reboot_timeout_ = reboot_timeout; }
 void MQTTClientComponent::register_mqtt_component(MQTTComponent *component) { this->children_.push_back(component); }
 void MQTTClientComponent::set_log_level(int level) { this->log_level_ = level; }
-void MQTTClientComponent::set_keep_alive(uint16_t keep_alive_s) { this->mqtt_client_.setKeepAlive(keep_alive_s); }
+void MQTTClientComponent::set_keep_alive(uint16_t keep_alive_s) { this->mqtt_backend_.set_keep_alive(keep_alive_s); }
 void MQTTClientComponent::set_log_message_template(MQTTMessage &&message) { this->log_message_ = std::move(message); }
 const MQTTDiscoveryInfo &MQTTClientComponent::get_discovery_info() const { return this->discovery_info_; }
-void MQTTClientComponent::set_topic_prefix(std::string topic_prefix) { this->topic_prefix_ = std::move(topic_prefix); }
+void MQTTClientComponent::set_topic_prefix(const std::string &topic_prefix) { this->topic_prefix_ = topic_prefix; }
 const std::string &MQTTClientComponent::get_topic_prefix() const { return this->topic_prefix_; }
 void MQTTClientComponent::disable_birth_message() {
   this->birth_message_.topic = "";
@@ -549,7 +555,13 @@ void MQTTClientComponent::set_discovery_info(std::string &&prefix, MQTTDiscovery
 void MQTTClientComponent::disable_last_will() { this->last_will_.topic = ""; }
 
 void MQTTClientComponent::disable_discovery() {
-  this->discovery_info_ = MQTTDiscoveryInfo{.prefix = "", .retain = false};
+  this->discovery_info_ = MQTTDiscoveryInfo{
+      .prefix = "",
+      .retain = false,
+      .clean = false,
+      .unique_id_generator = MQTT_LEGACY_UNIQUE_ID_GENERATOR,
+      .object_id_generator = MQTT_NONE_OBJECT_ID_GENERATOR,
+  };
 }
 void MQTTClientComponent::on_shutdown() {
   if (!this->shutdown_message_.topic.empty()) {
@@ -557,13 +569,13 @@ void MQTTClientComponent::on_shutdown() {
     this->publish(this->shutdown_message_);
     yield();
   }
-  this->mqtt_client_.disconnect(true);
+  this->mqtt_backend_.disconnect();
 }
 
 #if ASYNC_TCP_SSL_ENABLED
 void MQTTClientComponent::add_ssl_fingerprint(const std::array<uint8_t, SHA1_SIZE> &fingerprint) {
-  this->mqtt_client_.setSecure(true);
-  this->mqtt_client_.addServerFingerprint(fingerprint.data());
+  this->mqtt_backend_.setSecure(true);
+  this->mqtt_backend_.addServerFingerprint(fingerprint.data());
 }
 #endif
 

esphome/components/mqtt/mqtt_client.h

@@ -9,7 +9,11 @@
 #include "esphome/core/log.h"
 #include "esphome/components/json/json_util.h"
 #include "esphome/components/network/ip_address.h"
-#include <AsyncMqttClient.h>
+#if defined(USE_ESP_IDF)
+#include "mqtt_backend_idf.h"
+#elif defined(USE_ARDUINO)
+#include "mqtt_backend_arduino.h"
+#endif
 #include "lwip/ip_addr.h"
 
 namespace esphome {
@@ -22,14 +26,6 @@ namespace mqtt {
 using mqtt_callback_t = std::function<void(const std::string &, const std::string &)>;
 using mqtt_json_callback_t = std::function<void(const std::string &, JsonObject)>;
 
-/// internal struct for MQTT messages.
-struct MQTTMessage {
-  std::string topic;
-  std::string payload;
-  uint8_t qos;  ///< QoS. Only for last will testaments.
-  bool retain;
-};
-
 /// internal struct for MQTT subscriptions.
 struct MQTTSubscription {
   std::string topic;
@@ -139,7 +135,10 @@ class MQTTClientComponent : public Component {
    */
   void add_ssl_fingerprint(const std::array<uint8_t, SHA1_SIZE> &fingerprint);
 #endif
-
+#ifdef USE_ESP_IDF
+  void set_ca_certificate(const char *cert) { this->mqtt_backend_.set_ca_certificate(cert); }
+  void set_skip_cert_cn_check(bool skip_check) { this->mqtt_backend_.set_skip_cert_cn_check(skip_check); }
+#endif
   const Availability &get_availability();
 
   /** Set the topic prefix that will be prepended to all topics together with "/". This will, in most cases,
@@ -150,7 +149,7 @@ class MQTTClientComponent : public Component {
    *
    * @param topic_prefix The topic prefix. The last "/" is appended automatically.
    */
-  void set_topic_prefix(std::string topic_prefix);
+  void set_topic_prefix(const std::string &topic_prefix);
   /// Get the topic prefix of this device, using default if necessary
   const std::string &get_topic_prefix() const;
 
@@ -277,6 +276,8 @@ class MQTTClientComponent : public Component {
       .prefix = "homeassistant",
       .retain = true,
       .clean = false,
+      .unique_id_generator = MQTT_LEGACY_UNIQUE_ID_GENERATOR,
+      .object_id_generator = MQTT_NONE_OBJECT_ID_GENERATOR,
   };
   std::string topic_prefix_{};
   MQTTMessage log_message_;
@@ -284,7 +285,12 @@ class MQTTClientComponent : public Component {
   int log_level_{ESPHOME_LOG_LEVEL};
 
   std::vector<MQTTSubscription> subscriptions_;
-  AsyncMqttClient mqtt_client_;
+#if defined(USE_ESP_IDF)
+  MQTTBackendIDF mqtt_backend_;
+#elif defined(USE_ARDUINO)
+  MQTTBackendArduino mqtt_backend_;
+#endif
+
   MQTTClientState state_{MQTT_CLIENT_DISCONNECTED};
   network::IPAddress ip_;
   bool dns_resolved_{false};
@@ -293,7 +299,7 @@ class MQTTClientComponent : public Component {
   uint32_t reboot_timeout_{300000};
   uint32_t connect_begin_;
   uint32_t last_connected_{0};
-  optional<AsyncMqttClientDisconnectReason> disconnect_reason_{};
+  optional<MQTTClientDisconnectReason> disconnect_reason_{};
 };
 
 extern MQTTClientComponent *global_mqtt_client;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)

esphome/components/mqtt/mqtt_select.cpp

@@ -21,7 +21,7 @@ void MQTTSelectComponent::setup() {
     call.set_option(state);
     call.perform();
   });
-  this->select_->add_on_state_callback([this](const std::string &state) { this->publish_state(state); });
+  this->select_->add_on_state_callback([this](const std::string &state, size_t index) { this->publish_state(state); });
 }
 
 void MQTTSelectComponent::dump_config() {

esphome/components/nfc/__init__.py

@@ -1,3 +1,4 @@
+from esphome import automation
 import esphome.codegen as cg
 
 CODEOWNERS = ["@jesserockz"]
@@ -5,3 +6,7 @@ CODEOWNERS = ["@jesserockz"]
 nfc_ns = cg.esphome_ns.namespace("nfc")
 
 NfcTag = nfc_ns.class_("NfcTag")
+
+NfcOnTagTrigger = nfc_ns.class_(
+    "NfcOnTagTrigger", automation.Trigger.template(cg.std_string, NfcTag)
+)

esphome/components/nfc/automation.cpp

@@ -0,0 +1,9 @@
+#include "automation.h"
+
+namespace esphome {
+namespace nfc {
+
+void NfcOnTagTrigger::process(const std::unique_ptr<NfcTag> &tag) { this->trigger(format_uid(tag->get_uid()), *tag); }
+
+}  // namespace nfc
+}  // namespace esphome

esphome/components/nfc/automation.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <string>
+#include "esphome/core/automation.h"
+
+#include "nfc.h"
+
+namespace esphome {
+namespace nfc {
+
+class NfcOnTagTrigger : public Trigger<std::string, NfcTag> {
+ public:
+  void process(const std::unique_ptr<NfcTag> &tag);
+};
+
+}  // namespace nfc
+}  // namespace esphome

esphome/components/number/__init__.py

@@ -14,6 +14,8 @@ from esphome.const import (
     CONF_UNIT_OF_MEASUREMENT,
     CONF_MQTT_ID,
     CONF_VALUE,
+    CONF_OPERATION,
+    CONF_CYCLE,
 )
 from esphome.core import CORE, coroutine_with_priority
 from esphome.cpp_helpers import setup_entity
@@ -35,6 +37,7 @@ ValueRangeTrigger = number_ns.class_(
 
 # Actions
 NumberSetAction = number_ns.class_("NumberSetAction", automation.Action)
+NumberOperationAction = number_ns.class_("NumberOperationAction", automation.Action)
 
 # Conditions
 NumberInRangeCondition = number_ns.class_(
@@ -49,6 +52,15 @@ NUMBER_MODES = {
     "SLIDER": NumberMode.NUMBER_MODE_SLIDER,
 }
 
+NumberOperation = number_ns.enum("NumberOperation")
+
+NUMBER_OPERATION_OPTIONS = {
+    "INCREMENT": NumberOperation.NUMBER_OP_INCREMENT,
+    "DECREMENT": NumberOperation.NUMBER_OP_DECREMENT,
+    "TO_MIN": NumberOperation.NUMBER_OP_TO_MIN,
+    "TO_MAX": NumberOperation.NUMBER_OP_TO_MAX,
+}
+
 icon = cv.icon
 
 NUMBER_SCHEMA = cv.ENTITY_BASE_SCHEMA.extend(cv.MQTT_COMMAND_COMPONENT_SCHEMA).extend(
@@ -63,8 +75,8 @@ NUMBER_SCHEMA = cv.ENTITY_BASE_SCHEMA.extend(cv.MQTT_COMMAND_COMPONENT_SCHEMA).e
         cv.Optional(CONF_ON_VALUE_RANGE): automation.validate_automation(
             {
                 cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(ValueRangeTrigger),
-                cv.Optional(CONF_ABOVE): cv.float_,
-                cv.Optional(CONF_BELOW): cv.float_,
+                cv.Optional(CONF_ABOVE): cv.templatable(cv.float_),
+                cv.Optional(CONF_BELOW): cv.templatable(cv.float_),
             },
             cv.has_at_least_one_key(CONF_ABOVE, CONF_BELOW),
         ),
@@ -159,12 +171,18 @@ async def to_code(config):
     cg.add_global(number_ns.using)
 
 
+OPERATION_BASE_SCHEMA = cv.Schema(
+    {
+        cv.Required(CONF_ID): cv.use_id(Number),
+    }
+)
+
+
 @automation.register_action(
     "number.set",
     NumberSetAction,
-    cv.Schema(
+    OPERATION_BASE_SCHEMA.extend(
         {
-            cv.Required(CONF_ID): cv.use_id(Number),
             cv.Required(CONF_VALUE): cv.templatable(cv.float_),
         }
     ),
@@ -175,3 +193,85 @@ async def number_set_to_code(config, action_id, template_arg, args):
     template_ = await cg.templatable(config[CONF_VALUE], args, float)
     cg.add(var.set_value(template_))
     return var
+
+
+@automation.register_action(
+    "number.increment",
+    NumberOperationAction,
+    automation.maybe_simple_id(
+        OPERATION_BASE_SCHEMA.extend(
+            {
+                cv.Optional(CONF_MODE, default="INCREMENT"): cv.one_of(
+                    "INCREMENT", upper=True
+                ),
+                cv.Optional(CONF_CYCLE, default=True): cv.boolean,
+            }
+        )
+    ),
+)
+@automation.register_action(
+    "number.decrement",
+    NumberOperationAction,
+    automation.maybe_simple_id(
+        OPERATION_BASE_SCHEMA.extend(
+            {
+                cv.Optional(CONF_MODE, default="DECREMENT"): cv.one_of(
+                    "DECREMENT", upper=True
+                ),
+                cv.Optional(CONF_CYCLE, default=True): cv.boolean,
+            }
+        )
+    ),
+)
+@automation.register_action(
+    "number.to_min",
+    NumberOperationAction,
+    automation.maybe_simple_id(
+        OPERATION_BASE_SCHEMA.extend(
+            {
+                cv.Optional(CONF_MODE, default="TO_MIN"): cv.one_of(
+                    "TO_MIN", upper=True
+                ),
+            }
+        )
+    ),
+)
+@automation.register_action(
+    "number.to_max",
+    NumberOperationAction,
+    automation.maybe_simple_id(
+        OPERATION_BASE_SCHEMA.extend(
+            {
+                cv.Optional(CONF_MODE, default="TO_MAX"): cv.one_of(
+                    "TO_MAX", upper=True
+                ),
+            }
+        )
+    ),
+)
+@automation.register_action(
+    "number.operation",
+    NumberOperationAction,
+    OPERATION_BASE_SCHEMA.extend(
+        {
+            cv.Required(CONF_OPERATION): cv.templatable(
+                cv.enum(NUMBER_OPERATION_OPTIONS, upper=True)
+            ),
+            cv.Optional(CONF_CYCLE, default=True): cv.templatable(cv.boolean),
+        }
+    ),
+)
+async def number_to_to_code(config, action_id, template_arg, args):
+    paren = await cg.get_variable(config[CONF_ID])
+    var = cg.new_Pvariable(action_id, template_arg, paren)
+    if CONF_OPERATION in config:
+        to_ = await cg.templatable(config[CONF_OPERATION], args, NumberOperation)
+        cg.add(var.set_operation(to_))
+        if CONF_CYCLE in config:
+            cycle_ = await cg.templatable(config[CONF_CYCLE], args, bool)
+            cg.add(var.set_cycle(cycle_))
+    if CONF_MODE in config:
+        cg.add(var.set_operation(NUMBER_OPERATION_OPTIONS[config[CONF_MODE]]))
+        if CONF_CYCLE in config:
+            cg.add(var.set_cycle(config[CONF_CYCLE]))
+    return var

esphome/components/number/automation.h

@@ -29,6 +29,25 @@ template<typename... Ts> class NumberSetAction : public Action<Ts...> {
   Number *number_;
 };
 
+template<typename... Ts> class NumberOperationAction : public Action<Ts...> {
+ public:
+  explicit NumberOperationAction(Number *number) : number_(number) {}
+  TEMPLATABLE_VALUE(NumberOperation, operation)
+  TEMPLATABLE_VALUE(bool, cycle)
+
+  void play(Ts... x) override {
+    auto call = this->number_->make_call();
+    call.with_operation(this->operation_.value(x...));
+    if (this->cycle_.has_value()) {
+      call.with_cycle(this->cycle_.value(x...));
+    }
+    call.perform();
+  }
+
+ protected:
+  Number *number_;
+};
+
 class ValueRangeTrigger : public Trigger<float>, public Component {
  public:
   explicit ValueRangeTrigger(Number *parent) : parent_(parent) {}

esphome/components/number/number.cpp

@@ -6,30 +6,6 @@ namespace number {
 
 static const char *const TAG = "number";
 
-void NumberCall::perform() {
-  ESP_LOGD(TAG, "'%s' - Setting", this->parent_->get_name().c_str());
-  if (!this->value_.has_value() || std::isnan(*this->value_)) {
-    ESP_LOGW(TAG, "No value set for NumberCall");
-    return;
-  }
-
-  const auto &traits = this->parent_->traits;
-  auto value = *this->value_;
-
-  float min_value = traits.get_min_value();
-  if (value < min_value) {
-    ESP_LOGW(TAG, "  Value %f must not be less than minimum %f", value, min_value);
-    return;
-  }
-  float max_value = traits.get_max_value();
-  if (value > max_value) {
-    ESP_LOGW(TAG, "  Value %f must not be greater than maximum %f", value, max_value);
-    return;
-  }
-  ESP_LOGD(TAG, "  Value: %f", *this->value_);
-  this->parent_->control(*this->value_);
-}
-
 void Number::publish_state(float state) {
   this->has_state_ = true;
   this->state = state;
@@ -41,15 +17,6 @@ void Number::add_on_state_callback(std::function<void(float)> &&callback) {
   this->state_callback_.add(std::move(callback));
 }
 
-std::string NumberTraits::get_unit_of_measurement() {
-  if (this->unit_of_measurement_.has_value())
-    return *this->unit_of_measurement_;
-  return "";
-}
-void NumberTraits::set_unit_of_measurement(const std::string &unit_of_measurement) {
-  this->unit_of_measurement_ = unit_of_measurement;
-}
-
 uint32_t Number::hash_base() { return 2282307003UL; }
 
 }  // namespace number

esphome/components/number/number.h

@@ -3,6 +3,8 @@
 #include "esphome/core/component.h"
 #include "esphome/core/entity_base.h"
 #include "esphome/core/helpers.h"
+#include "number_call.h"
+#include "number_traits.h"
 
 namespace esphome {
 namespace number {
@@ -20,54 +22,6 @@ namespace number {
 
 class Number;
 
-class NumberCall {
- public:
-  explicit NumberCall(Number *parent) : parent_(parent) {}
-  void perform();
-
-  NumberCall &set_value(float value) {
-    value_ = value;
-    return *this;
-  }
-  const optional<float> &get_value() const { return value_; }
-
- protected:
-  Number *const parent_;
-  optional<float> value_;
-};
-
-enum NumberMode : uint8_t {
-  NUMBER_MODE_AUTO = 0,
-  NUMBER_MODE_BOX = 1,
-  NUMBER_MODE_SLIDER = 2,
-};
-
-class NumberTraits {
- public:
-  void set_min_value(float min_value) { min_value_ = min_value; }
-  float get_min_value() const { return min_value_; }
-  void set_max_value(float max_value) { max_value_ = max_value; }
-  float get_max_value() const { return max_value_; }
-  void set_step(float step) { step_ = step; }
-  float get_step() const { return step_; }
-
-  /// Get the unit of measurement, using the manual override if set.
-  std::string get_unit_of_measurement();
-  /// Manually set the unit of measurement.
-  void set_unit_of_measurement(const std::string &unit_of_measurement);
-
-  // Get/set the frontend mode.
-  NumberMode get_mode() const { return this->mode_; }
-  void set_mode(NumberMode mode) { this->mode_ = mode; }
-
- protected:
-  float min_value_ = NAN;
-  float max_value_ = NAN;
-  float step_ = NAN;
-  optional<std::string> unit_of_measurement_;  ///< Unit of measurement override
-  NumberMode mode_{NUMBER_MODE_AUTO};
-};
-
 /** Base-class for all numbers.
  *
  * A number can use publish_state to send out a new value.
@@ -79,7 +33,6 @@ class Number : public EntityBase {
   void publish_state(float state);
 
   NumberCall make_call() { return NumberCall(this); }
-  void set(float value) { make_call().set_value(value).perform(); }
 
   void add_on_state_callback(std::function<void(float)> &&callback);
 

esphome/components/number/number_call.cpp

@@ -0,0 +1,118 @@
+#include "number_call.h"
+#include "number.h"
+#include "esphome/core/log.h"
+
+namespace esphome {
+namespace number {
+
+static const char *const TAG = "number";
+
+NumberCall &NumberCall::set_value(float value) { return this->with_operation(NUMBER_OP_SET).with_value(value); }
+
+NumberCall &NumberCall::number_increment(bool cycle) {
+  return this->with_operation(NUMBER_OP_INCREMENT).with_cycle(cycle);
+}
+
+NumberCall &NumberCall::number_decrement(bool cycle) {
+  return this->with_operation(NUMBER_OP_DECREMENT).with_cycle(cycle);
+}
+
+NumberCall &NumberCall::number_to_min() { return this->with_operation(NUMBER_OP_TO_MIN); }
+
+NumberCall &NumberCall::number_to_max() { return this->with_operation(NUMBER_OP_TO_MAX); }
+
+NumberCall &NumberCall::with_operation(NumberOperation operation) {
+  this->operation_ = operation;
+  return *this;
+}
+
+NumberCall &NumberCall::with_value(float value) {
+  this->value_ = value;
+  return *this;
+}
+
+NumberCall &NumberCall::with_cycle(bool cycle) {
+  this->cycle_ = cycle;
+  return *this;
+}
+
+void NumberCall::perform() {
+  auto *parent = this->parent_;
+  const auto *name = parent->get_name().c_str();
+  const auto &traits = parent->traits;
+
+  if (this->operation_ == NUMBER_OP_NONE) {
+    ESP_LOGW(TAG, "'%s' - NumberCall performed without selecting an operation", name);
+    return;
+  }
+
+  float target_value = NAN;
+  float min_value = traits.get_min_value();
+  float max_value = traits.get_max_value();
+
+  if (this->operation_ == NUMBER_OP_SET) {
+    ESP_LOGD(TAG, "'%s' - Setting number value", name);
+    if (!this->value_.has_value() || std::isnan(*this->value_)) {
+      ESP_LOGW(TAG, "'%s' - No value set for NumberCall", name);
+      return;
+    }
+    target_value = this->value_.value();
+  } else if (this->operation_ == NUMBER_OP_TO_MIN) {
+    if (std::isnan(min_value)) {
+      ESP_LOGW(TAG, "'%s' - Can't set to min value through NumberCall: no min_value defined", name);
+    } else {
+      target_value = min_value;
+    }
+  } else if (this->operation_ == NUMBER_OP_TO_MAX) {
+    if (std::isnan(max_value)) {
+      ESP_LOGW(TAG, "'%s' - Can't set to max value through NumberCall: no max_value defined", name);
+    } else {
+      target_value = max_value;
+    }
+  } else if (this->operation_ == NUMBER_OP_INCREMENT) {
+    ESP_LOGD(TAG, "'%s' - Increment number, with%s cycling", name, this->cycle_ ? "" : "out");
+    if (!parent->has_state()) {
+      ESP_LOGW(TAG, "'%s' - Can't increment number through NumberCall: no active state to modify", name);
+      return;
+    }
+    auto step = traits.get_step();
+    target_value = parent->state + (std::isnan(step) ? 1 : step);
+    if (target_value > max_value) {
+      if (this->cycle_ && !std::isnan(min_value)) {
+        target_value = min_value;
+      } else {
+        target_value = max_value;
+      }
+    }
+  } else if (this->operation_ == NUMBER_OP_DECREMENT) {
+    ESP_LOGD(TAG, "'%s' - Decrement number, with%s cycling", name, this->cycle_ ? "" : "out");
+    if (!parent->has_state()) {
+      ESP_LOGW(TAG, "'%s' - Can't decrement number through NumberCall: no active state to modify", name);
+      return;
+    }
+    auto step = traits.get_step();
+    target_value = parent->state - (std::isnan(step) ? 1 : step);
+    if (target_value < min_value) {
+      if (this->cycle_ && !std::isnan(max_value)) {
+        target_value = max_value;
+      } else {
+        target_value = min_value;
+      }
+    }
+  }
+
+  if (target_value < min_value) {
+    ESP_LOGW(TAG, "'%s' - Value %f must not be less than minimum %f", name, target_value, min_value);
+    return;
+  }
+  if (target_value > max_value) {
+    ESP_LOGW(TAG, "'%s' - Value %f must not be greater than maximum %f", name, target_value, max_value);
+    return;
+  }
+
+  ESP_LOGD(TAG, "  New number value: %f", target_value);
+  this->parent_->control(target_value);
+}
+
+}  // namespace number
+}  // namespace esphome

esphome/components/number/number_call.h

@@ -0,0 +1,43 @@
+#pragma once
+
+#include "esphome/core/helpers.h"
+#include "number_traits.h"
+
+namespace esphome {
+namespace number {
+
+class Number;
+
+enum NumberOperation {
+  NUMBER_OP_NONE,
+  NUMBER_OP_SET,
+  NUMBER_OP_INCREMENT,
+  NUMBER_OP_DECREMENT,
+  NUMBER_OP_TO_MIN,
+  NUMBER_OP_TO_MAX,
+};
+
+class NumberCall {
+ public:
+  explicit NumberCall(Number *parent) : parent_(parent) {}
+  void perform();
+
+  NumberCall &set_value(float value);
+  NumberCall &number_increment(bool cycle);
+  NumberCall &number_decrement(bool cycle);
+  NumberCall &number_to_min();
+  NumberCall &number_to_max();
+
+  NumberCall &with_operation(NumberOperation operation);
+  NumberCall &with_value(float value);
+  NumberCall &with_cycle(bool cycle);
+
+ protected:
+  Number *const parent_;
+  NumberOperation operation_{NUMBER_OP_NONE};
+  optional<float> value_;
+  bool cycle_;
+};
+
+}  // namespace number
+}  // namespace esphome

esphome/components/number/number_traits.cpp

@@ -0,0 +1,20 @@
+#include "esphome/core/log.h"
+#include "number_traits.h"
+
+namespace esphome {
+namespace number {
+
+static const char *const TAG = "number";
+
+void NumberTraits::set_unit_of_measurement(const std::string &unit_of_measurement) {
+  this->unit_of_measurement_ = unit_of_measurement;
+}
+
+std::string NumberTraits::get_unit_of_measurement() {
+  if (this->unit_of_measurement_.has_value())
+    return *this->unit_of_measurement_;
+  return "";
+}
+
+}  // namespace number
+}  // namespace esphome

esphome/components/number/number_traits.h

@@ -0,0 +1,44 @@
+#pragma once
+
+#include "esphome/core/helpers.h"
+
+namespace esphome {
+namespace number {
+
+enum NumberMode : uint8_t {
+  NUMBER_MODE_AUTO = 0,
+  NUMBER_MODE_BOX = 1,
+  NUMBER_MODE_SLIDER = 2,
+};
+
+class NumberTraits {
+ public:
+  // Set/get the number value boundaries.
+  void set_min_value(float min_value) { min_value_ = min_value; }
+  float get_min_value() const { return min_value_; }
+  void set_max_value(float max_value) { max_value_ = max_value; }
+  float get_max_value() const { return max_value_; }
+
+  // Set/get the step size for incrementing or decrementing the number value.
+  void set_step(float step) { step_ = step; }
+  float get_step() const { return step_; }
+
+  /// Manually set the unit of measurement.
+  void set_unit_of_measurement(const std::string &unit_of_measurement);
+  /// Get the unit of measurement, using the manual override if set.
+  std::string get_unit_of_measurement();
+
+  // Set/get the frontend mode.
+  void set_mode(NumberMode mode) { this->mode_ = mode; }
+  NumberMode get_mode() const { return this->mode_; }
+
+ protected:
+  float min_value_ = NAN;
+  float max_value_ = NAN;
+  float step_ = NAN;
+  optional<std::string> unit_of_measurement_;  ///< Unit of measurement override
+  NumberMode mode_{NUMBER_MODE_AUTO};
+};
+
+}  // namespace number
+}  // namespace esphome

esphome/components/ota/ota_component.cpp

@@ -473,6 +473,8 @@ bool OTAComponent::should_enter_safe_mode(uint8_t num_attempts, uint32_t enable_
       App.reboot();
     });
 
+    // Delay here to allow power to stabilise before Wi-Fi/Ethernet is initialised.
+    delay(300);  // NOLINT
     App.setup();
 
     ESP_LOGI(TAG, "Waiting for OTA attempt.");

esphome/components/pmsx003/pmsx003.cpp

@@ -49,6 +49,47 @@ void PMSX003Component::set_formaldehyde_sensor(sensor::Sensor *formaldehyde_sens
 
 void PMSX003Component::loop() {
   const uint32_t now = millis();
+
+  // If we update less often than it takes the device to stabilise, spin the fan down
+  // rather than running it constantly. It does take some time to stabilise, so we
+  // need to keep track of what state we're in.
+  if (this->update_interval_ > PMS_STABILISING_MS) {
+    if (this->initialised_ == 0) {
+      this->send_command_(PMS_CMD_AUTO_MANUAL, 0);
+      this->send_command_(PMS_CMD_ON_STANDBY, 1);
+      this->initialised_ = 1;
+    }
+    switch (this->state_) {
+      case PMSX003_STATE_IDLE:
+        // Power on the sensor now so it'll be ready when we hit the update time
+        if (now - this->last_update_ < (this->update_interval_ - PMS_STABILISING_MS))
+          return;
+
+        this->state_ = PMSX003_STATE_STABILISING;
+        this->send_command_(PMS_CMD_ON_STANDBY, 1);
+        this->fan_on_time_ = now;
+        return;
+      case PMSX003_STATE_STABILISING:
+        // wait for the sensor to be stable
+        if (now - this->fan_on_time_ < PMS_STABILISING_MS)
+          return;
+        // consume any command responses that are in the serial buffer
+        while (this->available())
+          this->read_byte(&this->data_[0]);
+        // Trigger a new read
+        this->send_command_(PMS_CMD_TRIG_MANUAL, 0);
+        this->state_ = PMSX003_STATE_WAITING;
+        break;
+      case PMSX003_STATE_WAITING:
+        // Just go ahead and read stuff
+        break;
+    }
+  } else if (now - this->last_update_ < this->update_interval_) {
+    // Otherwise just leave the sensor powered up and come back when we hit the update
+    // time
+    return;
+  }
+
   if (now - this->last_transmission_ >= 500) {
     // last transmission too long ago. Reset RX index.
     this->data_index_ = 0;
@@ -65,6 +106,7 @@ void PMSX003Component::loop() {
       // finished
       this->parse_data_();
       this->data_index_ = 0;
+      this->last_update_ = now;
     } else if (!*check) {
       // wrong data
       this->data_index_ = 0;
@@ -131,6 +173,25 @@ optional<bool> PMSX003Component::check_byte_() {
   return {};
 }
 
+void PMSX003Component::send_command_(uint8_t cmd, uint16_t data) {
+  this->data_index_ = 0;
+  this->data_[data_index_++] = 0x42;
+  this->data_[data_index_++] = 0x4D;
+  this->data_[data_index_++] = cmd;
+  this->data_[data_index_++] = (data >> 8) & 0xFF;
+  this->data_[data_index_++] = (data >> 0) & 0xFF;
+  int sum = 0;
+  for (int i = 0; i < data_index_; i++) {
+    sum += this->data_[i];
+  }
+  this->data_[data_index_++] = (sum >> 8) & 0xFF;
+  this->data_[data_index_++] = (sum >> 0) & 0xFF;
+  for (int i = 0; i < data_index_; i++) {
+    this->write_byte(this->data_[i]);
+  }
+  this->data_index_ = 0;
+}
+
 void PMSX003Component::parse_data_() {
   switch (this->type_) {
     case PMSX003_TYPE_5003ST: {
@@ -218,6 +279,13 @@ void PMSX003Component::parse_data_() {
     }
   }
 
+  // Spin down the sensor again if we aren't going to need it until more time has
+  // passed than it takes to stabilise
+  if (this->update_interval_ > PMS_STABILISING_MS) {
+    this->send_command_(PMS_CMD_ON_STANDBY, 0);
+    this->state_ = PMSX003_STATE_IDLE;
+  }
+
   this->status_clear_warning();
 }
 uint16_t PMSX003Component::get_16_bit_uint_(uint8_t start_index) {

esphome/components/pmsx003/pmsx003.h

@@ -7,6 +7,13 @@
 namespace esphome {
 namespace pmsx003 {
 
+// known command bytes
+#define PMS_CMD_AUTO_MANUAL 0xE1  // data=0: perform measurement manually, data=1: perform measurement automatically
+#define PMS_CMD_TRIG_MANUAL 0xE2  // trigger a manual measurement
+#define PMS_CMD_ON_STANDBY 0xE4   // data=0: go to standby mode, data=1: go to normal mode
+
+static const uint16_t PMS_STABILISING_MS = 30000;  // time taken for the sensor to become stable after power on
+
 enum PMSX003Type {
   PMSX003_TYPE_X003 = 0,
   PMSX003_TYPE_5003T,
@@ -14,6 +21,12 @@ enum PMSX003Type {
   PMSX003_TYPE_5003S,
 };
 
+enum PMSX003State {
+  PMSX003_STATE_IDLE = 0,
+  PMSX003_STATE_STABILISING,
+  PMSX003_STATE_WAITING,
+};
+
 class PMSX003Component : public uart::UARTDevice, public Component {
  public:
   PMSX003Component() = default;
@@ -23,6 +36,8 @@ class PMSX003Component : public uart::UARTDevice, public Component {
 
   void set_type(PMSX003Type type) { type_ = type; }
 
+  void set_update_interval(uint32_t val) { update_interval_ = val; };
+
   void set_pm_1_0_std_sensor(sensor::Sensor *pm_1_0_std_sensor);
   void set_pm_2_5_std_sensor(sensor::Sensor *pm_2_5_std_sensor);
   void set_pm_10_0_std_sensor(sensor::Sensor *pm_10_0_std_sensor);
@@ -45,11 +60,17 @@ class PMSX003Component : public uart::UARTDevice, public Component {
  protected:
   optional<bool> check_byte_();
   void parse_data_();
+  void send_command_(uint8_t cmd, uint16_t data);
   uint16_t get_16_bit_uint_(uint8_t start_index);
 
   uint8_t data_[64];
   uint8_t data_index_{0};
+  uint8_t initialised_{0};
+  uint32_t fan_on_time_{0};
+  uint32_t last_update_{0};
   uint32_t last_transmission_{0};
+  uint32_t update_interval_{0};
+  PMSX003State state_{PMSX003_STATE_IDLE};
   PMSX003Type type_;
 
   // "Standard Particle"

esphome/components/pmsx003/sensor.py

@@ -1,6 +1,7 @@
 import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.components import sensor, uart
+
 from esphome.const import (
     CONF_FORMALDEHYDE,
     CONF_HUMIDITY,
@@ -17,6 +18,7 @@ from esphome.const import (
     CONF_PM_2_5UM,
     CONF_PM_5_0UM,
     CONF_PM_10_0UM,
+    CONF_UPDATE_INTERVAL,
     CONF_TEMPERATURE,
     CONF_TYPE,
     DEVICE_CLASS_PM1,
@@ -44,6 +46,7 @@ TYPE_PMS5003ST = "PMS5003ST"
 TYPE_PMS5003S = "PMS5003S"
 
 PMSX003Type = pmsx003_ns.enum("PMSX003Type")
+
 PMSX003_TYPES = {
     TYPE_PMSX003: PMSX003Type.PMSX003_TYPE_X003,
     TYPE_PMS5003T: PMSX003Type.PMSX003_TYPE_5003T,
@@ -68,6 +71,17 @@ def validate_pmsx003_sensors(value):
     return value
 
 
+def validate_update_interval(value):
+    value = cv.positive_time_period_milliseconds(value)
+    if value == cv.time_period("0s"):
+        return value
+    if value < cv.time_period("30s"):
+        raise cv.Invalid(
+            "Update interval must be greater than or equal to 30 seconds if set."
+        )
+    return value
+
+
 CONFIG_SCHEMA = (
     cv.Schema(
         {
@@ -157,6 +171,7 @@ CONFIG_SCHEMA = (
                 accuracy_decimals=0,
                 state_class=STATE_CLASS_MEASUREMENT,
             ),
+            cv.Optional(CONF_UPDATE_INTERVAL, default="0s"): validate_update_interval,
         }
     )
     .extend(cv.COMPONENT_SCHEMA)
@@ -164,6 +179,17 @@ CONFIG_SCHEMA = (
 )
 
 
+def final_validate(config):
+    require_tx = config[CONF_UPDATE_INTERVAL] > cv.time_period("0s")
+    schema = uart.final_validate_device_schema(
+        "pmsx003", baud_rate=9600, require_rx=True, require_tx=require_tx
+    )
+    schema(config)
+
+
+FINAL_VALIDATE_SCHEMA = final_validate
+
+
 async def to_code(config):
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
@@ -230,3 +256,5 @@ async def to_code(config):
     if CONF_FORMALDEHYDE in config:
         sens = await sensor.new_sensor(config[CONF_FORMALDEHYDE])
         cg.add(var.set_formaldehyde_sensor(sens))
+
+    cg.add(var.set_update_interval(config[CONF_UPDATE_INTERVAL]))

esphome/components/pn532/__init__.py

@@ -14,9 +14,6 @@ CONF_ON_FINISHED_WRITE = "on_finished_write"
 pn532_ns = cg.esphome_ns.namespace("pn532")
 PN532 = pn532_ns.class_("PN532", cg.PollingComponent)
 
-PN532OnTagTrigger = pn532_ns.class_(
-    "PN532OnTagTrigger", automation.Trigger.template(cg.std_string, nfc.NfcTag)
-)
 PN532OnFinishedWriteTrigger = pn532_ns.class_(
     "PN532OnFinishedWriteTrigger", automation.Trigger.template()
 )
@@ -30,7 +27,7 @@ PN532_SCHEMA = cv.Schema(
         cv.GenerateID(): cv.declare_id(PN532),
         cv.Optional(CONF_ON_TAG): automation.validate_automation(
             {
-                cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(PN532OnTagTrigger),
+                cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(nfc.NfcOnTagTrigger),
             }
         ),
         cv.Optional(CONF_ON_FINISHED_WRITE): automation.validate_automation(
@@ -42,7 +39,7 @@ PN532_SCHEMA = cv.Schema(
         ),
         cv.Optional(CONF_ON_TAG_REMOVED): automation.validate_automation(
             {
-                cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(PN532OnTagTrigger),
+                cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(nfc.NfcOnTagTrigger),
             }
         ),
     }

esphome/components/pn532/pn532.cpp

@@ -144,9 +144,9 @@ void PN532::loop() {
   }
 
   if (nfcid.size() == this->current_uid_.size()) {
-    bool same_uid = false;
+    bool same_uid = true;
     for (size_t i = 0; i < nfcid.size(); i++)
-      same_uid |= nfcid[i] == this->current_uid_[i];
+      same_uid &= nfcid[i] == this->current_uid_[i];
     if (same_uid)
       return;
   }
@@ -376,9 +376,6 @@ bool PN532BinarySensor::process(std::vector<uint8_t> &data) {
   this->found_ = true;
   return true;
 }
-void PN532OnTagTrigger::process(const std::unique_ptr<nfc::NfcTag> &tag) {
-  this->trigger(nfc::format_uid(tag->get_uid()), *tag);
-}
 
 }  // namespace pn532
 }  // namespace esphome

esphome/components/pn532/pn532.h

@@ -5,6 +5,7 @@
 #include "esphome/components/binary_sensor/binary_sensor.h"
 #include "esphome/components/nfc/nfc_tag.h"
 #include "esphome/components/nfc/nfc.h"
+#include "esphome/components/nfc/automation.h"
 
 namespace esphome {
 namespace pn532 {
@@ -16,7 +17,6 @@ static const uint8_t PN532_COMMAND_INDATAEXCHANGE = 0x40;
 static const uint8_t PN532_COMMAND_INLISTPASSIVETARGET = 0x4A;
 
 class PN532BinarySensor;
-class PN532OnTagTrigger;
 
 class PN532 : public PollingComponent {
  public:
@@ -30,8 +30,8 @@ class PN532 : public PollingComponent {
   void loop() override;
 
   void register_tag(PN532BinarySensor *tag) { this->binary_sensors_.push_back(tag); }
-  void register_ontag_trigger(PN532OnTagTrigger *trig) { this->triggers_ontag_.push_back(trig); }
-  void register_ontagremoved_trigger(PN532OnTagTrigger *trig) { this->triggers_ontagremoved_.push_back(trig); }
+  void register_ontag_trigger(nfc::NfcOnTagTrigger *trig) { this->triggers_ontag_.push_back(trig); }
+  void register_ontagremoved_trigger(nfc::NfcOnTagTrigger *trig) { this->triggers_ontagremoved_.push_back(trig); }
 
   void add_on_finished_write_callback(std::function<void()> callback) {
     this->on_finished_write_callback_.add(std::move(callback));
@@ -79,8 +79,8 @@ class PN532 : public PollingComponent {
 
   bool requested_read_{false};
   std::vector<PN532BinarySensor *> binary_sensors_;
-  std::vector<PN532OnTagTrigger *> triggers_ontag_;
-  std::vector<PN532OnTagTrigger *> triggers_ontagremoved_;
+  std::vector<nfc::NfcOnTagTrigger *> triggers_ontag_;
+  std::vector<nfc::NfcOnTagTrigger *> triggers_ontagremoved_;
   std::vector<uint8_t> current_uid_;
   nfc::NdefMessage *next_task_message_to_write_;
   enum NfcTask {
@@ -115,11 +115,6 @@ class PN532BinarySensor : public binary_sensor::BinarySensor {
   bool found_{false};
 };
 
-class PN532OnTagTrigger : public Trigger<std::string, nfc::NfcTag> {
- public:
-  void process(const std::unique_ptr<nfc::NfcTag> &tag);
-};
-
 class PN532OnFinishedWriteTrigger : public Trigger<> {
  public:
   explicit PN532OnFinishedWriteTrigger(PN532 *parent) {

esphome/components/qmp6988/__init__.py

@@ -0,0 +1 @@
+CODEOWNERS = ["@andrewpc"]

esphome/components/qmp6988/qmp6988.cpp

@@ -0,0 +1,397 @@
+#include "qmp6988.h"
+#include <cmath>
+
+namespace esphome {
+namespace qmp6988 {
+
+static const uint8_t QMP6988_CHIP_ID = 0x5C;
+
+static const uint8_t QMP6988_CHIP_ID_REG = 0xD1;     /* Chip ID confirmation Register */
+static const uint8_t QMP6988_RESET_REG = 0xE0;       /* Device reset register */
+static const uint8_t QMP6988_DEVICE_STAT_REG = 0xF3; /* Device state register */
+static const uint8_t QMP6988_CTRLMEAS_REG = 0xF4;    /* Measurement Condition Control Register */
+/* data */
+static const uint8_t QMP6988_PRESSURE_MSB_REG = 0xF7;    /* Pressure MSB Register */
+static const uint8_t QMP6988_TEMPERATURE_MSB_REG = 0xFA; /* Temperature MSB Reg */
+
+/* compensation calculation */
+static const uint8_t QMP6988_CALIBRATION_DATA_START = 0xA0; /* QMP6988 compensation coefficients */
+static const uint8_t QMP6988_CALIBRATION_DATA_LENGTH = 25;
+
+static const uint8_t SHIFT_RIGHT_4_POSITION = 4;
+static const uint8_t SHIFT_LEFT_2_POSITION = 2;
+static const uint8_t SHIFT_LEFT_4_POSITION = 4;
+static const uint8_t SHIFT_LEFT_5_POSITION = 5;
+static const uint8_t SHIFT_LEFT_8_POSITION = 8;
+static const uint8_t SHIFT_LEFT_12_POSITION = 12;
+static const uint8_t SHIFT_LEFT_16_POSITION = 16;
+
+/* power mode */
+static const uint8_t QMP6988_SLEEP_MODE = 0x00;
+static const uint8_t QMP6988_FORCED_MODE = 0x01;
+static const uint8_t QMP6988_NORMAL_MODE = 0x03;
+
+static const uint8_t QMP6988_CTRLMEAS_REG_MODE_POS = 0;
+static const uint8_t QMP6988_CTRLMEAS_REG_MODE_MSK = 0x03;
+static const uint8_t QMP6988_CTRLMEAS_REG_MODE_LEN = 2;
+
+static const uint8_t QMP6988_CTRLMEAS_REG_OSRST_POS = 5;
+static const uint8_t QMP6988_CTRLMEAS_REG_OSRST_MSK = 0xE0;
+static const uint8_t QMP6988_CTRLMEAS_REG_OSRST_LEN = 3;
+
+static const uint8_t QMP6988_CTRLMEAS_REG_OSRSP_POS = 2;
+static const uint8_t QMP6988_CTRLMEAS_REG_OSRSP_MSK = 0x1C;
+static const uint8_t QMP6988_CTRLMEAS_REG_OSRSP_LEN = 3;
+
+static const uint8_t QMP6988_CONFIG_REG = 0xF1; /*IIR filter co-efficient setting Register*/
+static const uint8_t QMP6988_CONFIG_REG_FILTER_POS = 0;
+static const uint8_t QMP6988_CONFIG_REG_FILTER_MSK = 0x07;
+static const uint8_t QMP6988_CONFIG_REG_FILTER_LEN = 3;
+
+static const uint32_t SUBTRACTOR = 8388608;
+
+static const char *const TAG = "qmp6988";
+
+static const char *oversampling_to_str(QMP6988Oversampling oversampling) {
+  switch (oversampling) {
+    case QMP6988_OVERSAMPLING_SKIPPED:
+      return "None";
+    case QMP6988_OVERSAMPLING_1X:
+      return "1x";
+    case QMP6988_OVERSAMPLING_2X:
+      return "2x";
+    case QMP6988_OVERSAMPLING_4X:
+      return "4x";
+    case QMP6988_OVERSAMPLING_8X:
+      return "8x";
+    case QMP6988_OVERSAMPLING_16X:
+      return "16x";
+    case QMP6988_OVERSAMPLING_32X:
+      return "32x";
+    case QMP6988_OVERSAMPLING_64X:
+      return "64x";
+    default:
+      return "UNKNOWN";
+  }
+}
+
+static const char *iir_filter_to_str(QMP6988IIRFilter filter) {
+  switch (filter) {
+    case QMP6988_IIR_FILTER_OFF:
+      return "OFF";
+    case QMP6988_IIR_FILTER_2X:
+      return "2x";
+    case QMP6988_IIR_FILTER_4X:
+      return "4x";
+    case QMP6988_IIR_FILTER_8X:
+      return "8x";
+    case QMP6988_IIR_FILTER_16X:
+      return "16x";
+    case QMP6988_IIR_FILTER_32X:
+      return "32x";
+    default:
+      return "UNKNOWN";
+  }
+}
+
+bool QMP6988Component::device_check_() {
+  uint8_t ret = 0;
+
+  ret = this->read_register(QMP6988_CHIP_ID_REG, &(qmp6988_data_.chip_id), 1);
+  if (ret != i2c::ERROR_OK) {
+    ESP_LOGE(TAG, "%s: read chip ID (0xD1) failed", __func__);
+  }
+  ESP_LOGD(TAG, "qmp6988 read chip id = 0x%x", qmp6988_data_.chip_id);
+
+  return qmp6988_data_.chip_id == QMP6988_CHIP_ID;
+}
+
+bool QMP6988Component::get_calibration_data_() {
+  uint8_t status = 0;
+  // BITFIELDS temp_COE;
+  uint8_t a_data_uint8_tr[QMP6988_CALIBRATION_DATA_LENGTH] = {0};
+  int len;
+
+  for (len = 0; len < QMP6988_CALIBRATION_DATA_LENGTH; len += 1) {
+    status = this->read_register(QMP6988_CALIBRATION_DATA_START + len, &a_data_uint8_tr[len], 1);
+    if (status != i2c::ERROR_OK) {
+      ESP_LOGE(TAG, "qmp6988 read calibration data (0xA0) error!");
+      return false;
+    }
+  }
+
+  qmp6988_data_.qmp6988_cali.COE_a0 =
+      (QMP6988_S32_t)(((a_data_uint8_tr[18] << SHIFT_LEFT_12_POSITION) |
+                       (a_data_uint8_tr[19] << SHIFT_LEFT_4_POSITION) | (a_data_uint8_tr[24] & 0x0f))
+                      << 12);
+  qmp6988_data_.qmp6988_cali.COE_a0 = qmp6988_data_.qmp6988_cali.COE_a0 >> 12;
+
+  qmp6988_data_.qmp6988_cali.COE_a1 =
+      (QMP6988_S16_t)(((a_data_uint8_tr[20]) << SHIFT_LEFT_8_POSITION) | a_data_uint8_tr[21]);
+  qmp6988_data_.qmp6988_cali.COE_a2 =
+      (QMP6988_S16_t)(((a_data_uint8_tr[22]) << SHIFT_LEFT_8_POSITION) | a_data_uint8_tr[23]);
+
+  qmp6988_data_.qmp6988_cali.COE_b00 =
+      (QMP6988_S32_t)(((a_data_uint8_tr[0] << SHIFT_LEFT_12_POSITION) | (a_data_uint8_tr[1] << SHIFT_LEFT_4_POSITION) |
+                       ((a_data_uint8_tr[24] & 0xf0) >> SHIFT_RIGHT_4_POSITION))
+                      << 12);
+  qmp6988_data_.qmp6988_cali.COE_b00 = qmp6988_data_.qmp6988_cali.COE_b00 >> 12;
+
+  qmp6988_data_.qmp6988_cali.COE_bt1 =
+      (QMP6988_S16_t)(((a_data_uint8_tr[2]) << SHIFT_LEFT_8_POSITION) | a_data_uint8_tr[3]);
+  qmp6988_data_.qmp6988_cali.COE_bt2 =
+      (QMP6988_S16_t)(((a_data_uint8_tr[4]) << SHIFT_LEFT_8_POSITION) | a_data_uint8_tr[5]);
+  qmp6988_data_.qmp6988_cali.COE_bp1 =
+      (QMP6988_S16_t)(((a_data_uint8_tr[6]) << SHIFT_LEFT_8_POSITION) | a_data_uint8_tr[7]);
+  qmp6988_data_.qmp6988_cali.COE_b11 =
+      (QMP6988_S16_t)(((a_data_uint8_tr[8]) << SHIFT_LEFT_8_POSITION) | a_data_uint8_tr[9]);
+  qmp6988_data_.qmp6988_cali.COE_bp2 =
+      (QMP6988_S16_t)(((a_data_uint8_tr[10]) << SHIFT_LEFT_8_POSITION) | a_data_uint8_tr[11]);
+  qmp6988_data_.qmp6988_cali.COE_b12 =
+      (QMP6988_S16_t)(((a_data_uint8_tr[12]) << SHIFT_LEFT_8_POSITION) | a_data_uint8_tr[13]);
+  qmp6988_data_.qmp6988_cali.COE_b21 =
+      (QMP6988_S16_t)(((a_data_uint8_tr[14]) << SHIFT_LEFT_8_POSITION) | a_data_uint8_tr[15]);
+  qmp6988_data_.qmp6988_cali.COE_bp3 =
+      (QMP6988_S16_t)(((a_data_uint8_tr[16]) << SHIFT_LEFT_8_POSITION) | a_data_uint8_tr[17]);
+
+  ESP_LOGV(TAG, "<-----------calibration data-------------->\r\n");
+  ESP_LOGV(TAG, "COE_a0[%d] COE_a1[%d] COE_a2[%d] COE_b00[%d]\r\n", qmp6988_data_.qmp6988_cali.COE_a0,
+           qmp6988_data_.qmp6988_cali.COE_a1, qmp6988_data_.qmp6988_cali.COE_a2, qmp6988_data_.qmp6988_cali.COE_b00);
+  ESP_LOGV(TAG, "COE_bt1[%d] COE_bt2[%d] COE_bp1[%d] COE_b11[%d]\r\n", qmp6988_data_.qmp6988_cali.COE_bt1,
+           qmp6988_data_.qmp6988_cali.COE_bt2, qmp6988_data_.qmp6988_cali.COE_bp1, qmp6988_data_.qmp6988_cali.COE_b11);
+  ESP_LOGV(TAG, "COE_bp2[%d] COE_b12[%d] COE_b21[%d] COE_bp3[%d]\r\n", qmp6988_data_.qmp6988_cali.COE_bp2,
+           qmp6988_data_.qmp6988_cali.COE_b12, qmp6988_data_.qmp6988_cali.COE_b21, qmp6988_data_.qmp6988_cali.COE_bp3);
+  ESP_LOGV(TAG, "<-----------calibration data-------------->\r\n");
+
+  qmp6988_data_.ik.a0 = qmp6988_data_.qmp6988_cali.COE_a0;    // 20Q4
+  qmp6988_data_.ik.b00 = qmp6988_data_.qmp6988_cali.COE_b00;  // 20Q4
+
+  qmp6988_data_.ik.a1 = 3608L * (QMP6988_S32_t) qmp6988_data_.qmp6988_cali.COE_a1 - 1731677965L;  // 31Q23
+  qmp6988_data_.ik.a2 = 16889L * (QMP6988_S32_t) qmp6988_data_.qmp6988_cali.COE_a2 - 87619360L;   // 30Q47
+
+  qmp6988_data_.ik.bt1 = 2982L * (QMP6988_S64_t) qmp6988_data_.qmp6988_cali.COE_bt1 + 107370906L;    // 28Q15
+  qmp6988_data_.ik.bt2 = 329854L * (QMP6988_S64_t) qmp6988_data_.qmp6988_cali.COE_bt2 + 108083093L;  // 34Q38
+  qmp6988_data_.ik.bp1 = 19923L * (QMP6988_S64_t) qmp6988_data_.qmp6988_cali.COE_bp1 + 1133836764L;  // 31Q20
+  qmp6988_data_.ik.b11 = 2406L * (QMP6988_S64_t) qmp6988_data_.qmp6988_cali.COE_b11 + 118215883L;    // 28Q34
+  qmp6988_data_.ik.bp2 = 3079L * (QMP6988_S64_t) qmp6988_data_.qmp6988_cali.COE_bp2 - 181579595L;    // 29Q43
+  qmp6988_data_.ik.b12 = 6846L * (QMP6988_S64_t) qmp6988_data_.qmp6988_cali.COE_b12 + 85590281L;     // 29Q53
+  qmp6988_data_.ik.b21 = 13836L * (QMP6988_S64_t) qmp6988_data_.qmp6988_cali.COE_b21 + 79333336L;    // 29Q60
+  qmp6988_data_.ik.bp3 = 2915L * (QMP6988_S64_t) qmp6988_data_.qmp6988_cali.COE_bp3 + 157155561L;    // 28Q65
+  ESP_LOGV(TAG, "<----------- int calibration data -------------->\r\n");
+  ESP_LOGV(TAG, "a0[%d] a1[%d] a2[%d] b00[%d]\r\n", qmp6988_data_.ik.a0, qmp6988_data_.ik.a1, qmp6988_data_.ik.a2,
+           qmp6988_data_.ik.b00);
+  ESP_LOGV(TAG, "bt1[%lld] bt2[%lld] bp1[%lld] b11[%lld]\r\n", qmp6988_data_.ik.bt1, qmp6988_data_.ik.bt2,
+           qmp6988_data_.ik.bp1, qmp6988_data_.ik.b11);
+  ESP_LOGV(TAG, "bp2[%lld] b12[%lld] b21[%lld] bp3[%lld]\r\n", qmp6988_data_.ik.bp2, qmp6988_data_.ik.b12,
+           qmp6988_data_.ik.b21, qmp6988_data_.ik.bp3);
+  ESP_LOGV(TAG, "<----------- int calibration data -------------->\r\n");
+  return true;
+}
+
+QMP6988_S16_t QMP6988Component::get_compensated_temperature_(qmp6988_ik_data_t *ik, QMP6988_S32_t dt) {
+  QMP6988_S16_t ret;
+  QMP6988_S64_t wk1, wk2;
+
+  // wk1: 60Q4 // bit size
+  wk1 = ((QMP6988_S64_t) ik->a1 * (QMP6988_S64_t) dt);        // 31Q23+24-1=54 (54Q23)
+  wk2 = ((QMP6988_S64_t) ik->a2 * (QMP6988_S64_t) dt) >> 14;  // 30Q47+24-1=53 (39Q33)
+  wk2 = (wk2 * (QMP6988_S64_t) dt) >> 10;                     // 39Q33+24-1=62 (52Q23)
+  wk2 = ((wk1 + wk2) / 32767) >> 19;                          // 54,52->55Q23 (20Q04)
+  ret = (QMP6988_S16_t)((ik->a0 + wk2) >> 4);                 // 21Q4 -> 17Q0
+  return ret;
+}
+
+QMP6988_S32_t QMP6988Component::get_compensated_pressure_(qmp6988_ik_data_t *ik, QMP6988_S32_t dp, QMP6988_S16_t tx) {
+  QMP6988_S32_t ret;
+  QMP6988_S64_t wk1, wk2, wk3;
+
+  // wk1 = 48Q16 // bit size
+  wk1 = ((QMP6988_S64_t) ik->bt1 * (QMP6988_S64_t) tx);        // 28Q15+16-1=43 (43Q15)
+  wk2 = ((QMP6988_S64_t) ik->bp1 * (QMP6988_S64_t) dp) >> 5;   // 31Q20+24-1=54 (49Q15)
+  wk1 += wk2;                                                  // 43,49->50Q15
+  wk2 = ((QMP6988_S64_t) ik->bt2 * (QMP6988_S64_t) tx) >> 1;   // 34Q38+16-1=49 (48Q37)
+  wk2 = (wk2 * (QMP6988_S64_t) tx) >> 8;                       // 48Q37+16-1=63 (55Q29)
+  wk3 = wk2;                                                   // 55Q29
+  wk2 = ((QMP6988_S64_t) ik->b11 * (QMP6988_S64_t) tx) >> 4;   // 28Q34+16-1=43 (39Q30)
+  wk2 = (wk2 * (QMP6988_S64_t) dp) >> 1;                       // 39Q30+24-1=62 (61Q29)
+  wk3 += wk2;                                                  // 55,61->62Q29
+  wk2 = ((QMP6988_S64_t) ik->bp2 * (QMP6988_S64_t) dp) >> 13;  // 29Q43+24-1=52 (39Q30)
+  wk2 = (wk2 * (QMP6988_S64_t) dp) >> 1;                       // 39Q30+24-1=62 (61Q29)
+  wk3 += wk2;                                                  // 62,61->63Q29
+  wk1 += wk3 >> 14;                                            // Q29 >> 14 -> Q15
+  wk2 = ((QMP6988_S64_t) ik->b12 * (QMP6988_S64_t) tx);        // 29Q53+16-1=45 (45Q53)
+  wk2 = (wk2 * (QMP6988_S64_t) tx) >> 22;                      // 45Q53+16-1=61 (39Q31)
+  wk2 = (wk2 * (QMP6988_S64_t) dp) >> 1;                       // 39Q31+24-1=62 (61Q30)
+  wk3 = wk2;                                                   // 61Q30
+  wk2 = ((QMP6988_S64_t) ik->b21 * (QMP6988_S64_t) tx) >> 6;   // 29Q60+16-1=45 (39Q54)
+  wk2 = (wk2 * (QMP6988_S64_t) dp) >> 23;                      // 39Q54+24-1=62 (39Q31)
+  wk2 = (wk2 * (QMP6988_S64_t) dp) >> 1;                       // 39Q31+24-1=62 (61Q20)
+  wk3 += wk2;                                                  // 61,61->62Q30
+  wk2 = ((QMP6988_S64_t) ik->bp3 * (QMP6988_S64_t) dp) >> 12;  // 28Q65+24-1=51 (39Q53)
+  wk2 = (wk2 * (QMP6988_S64_t) dp) >> 23;                      // 39Q53+24-1=62 (39Q30)
+  wk2 = (wk2 * (QMP6988_S64_t) dp);                            // 39Q30+24-1=62 (62Q30)
+  wk3 += wk2;                                                  // 62,62->63Q30
+  wk1 += wk3 >> 15;                                            // Q30 >> 15 = Q15
+  wk1 /= 32767L;
+  wk1 >>= 11;      // Q15 >> 7 = Q4
+  wk1 += ik->b00;  // Q4 + 20Q4
+  // wk1 >>= 4; // 28Q4 -> 24Q0
+  ret = (QMP6988_S32_t) wk1;
+  return ret;
+}
+
+void QMP6988Component::software_reset_() {
+  uint8_t ret = 0;
+
+  ret = this->write_byte(QMP6988_RESET_REG, 0xe6);
+  if (ret != i2c::ERROR_OK) {
+    ESP_LOGE(TAG, "Software Reset (0xe6) failed");
+  }
+  delay(10);
+
+  this->write_byte(QMP6988_RESET_REG, 0x00);
+}
+
+void QMP6988Component::set_power_mode_(uint8_t power_mode) {
+  uint8_t data;
+
+  ESP_LOGD(TAG, "Setting Power mode to: %d", power_mode);
+
+  qmp6988_data_.power_mode = power_mode;
+  this->read_register(QMP6988_CTRLMEAS_REG, &data, 1);
+  data = data & 0xfc;
+  if (power_mode == QMP6988_SLEEP_MODE) {
+    data |= 0x00;
+  } else if (power_mode == QMP6988_FORCED_MODE) {
+    data |= 0x01;
+  } else if (power_mode == QMP6988_NORMAL_MODE) {
+    data |= 0x03;
+  }
+  this->write_byte(QMP6988_CTRLMEAS_REG, data);
+
+  ESP_LOGD(TAG, "Set Power mode 0xf4=0x%x \r\n", data);
+
+  delay(10);
+}
+
+void QMP6988Component::write_filter_(unsigned char filter) {
+  uint8_t data;
+
+  data = (filter & 0x03);
+  this->write_byte(QMP6988_CONFIG_REG, data);
+  delay(10);
+}
+
+void QMP6988Component::write_oversampling_pressure_(unsigned char oversampling_p) {
+  uint8_t data;
+
+  this->read_register(QMP6988_CTRLMEAS_REG, &data, 1);
+  data &= 0xe3;
+  data |= (oversampling_p << 2);
+  this->write_byte(QMP6988_CTRLMEAS_REG, data);
+  delay(10);
+}
+
+void QMP6988Component::write_oversampling_temperature_(unsigned char oversampling_t) {
+  uint8_t data;
+
+  this->read_register(QMP6988_CTRLMEAS_REG, &data, 1);
+  data &= 0x1f;
+  data |= (oversampling_t << 5);
+  this->write_byte(QMP6988_CTRLMEAS_REG, data);
+  delay(10);
+}
+
+void QMP6988Component::set_temperature_oversampling(QMP6988Oversampling oversampling_t) {
+  this->temperature_oversampling_ = oversampling_t;
+}
+
+void QMP6988Component::set_pressure_oversampling(QMP6988Oversampling oversampling_p) {
+  this->pressure_oversampling_ = oversampling_p;
+}
+
+void QMP6988Component::set_iir_filter(QMP6988IIRFilter iirfilter) { this->iir_filter_ = iirfilter; }
+
+void QMP6988Component::calculate_altitude_(float pressure, float temp) {
+  float altitude;
+  altitude = (pow((101325 / pressure), 1 / 5.257) - 1) * (temp + 273.15) / 0.0065;
+  this->qmp6988_data_.altitude = altitude;
+}
+
+void QMP6988Component::calculate_pressure_() {
+  uint8_t err = 0;
+  QMP6988_U32_t p_read, t_read;
+  QMP6988_S32_t p_raw, t_raw;
+  uint8_t a_data_uint8_tr[6] = {0};
+  QMP6988_S32_t t_int, p_int;
+  this->qmp6988_data_.temperature = 0;
+  this->qmp6988_data_.pressure = 0;
+
+  err = this->read_register(QMP6988_PRESSURE_MSB_REG, a_data_uint8_tr, 6);
+  if (err != i2c::ERROR_OK) {
+    ESP_LOGE(TAG, "Error reading raw pressure/temp values");
+    return;
+  }
+  p_read = (QMP6988_U32_t)((((QMP6988_U32_t)(a_data_uint8_tr[0])) << SHIFT_LEFT_16_POSITION) |
+                           (((QMP6988_U16_t)(a_data_uint8_tr[1])) << SHIFT_LEFT_8_POSITION) | (a_data_uint8_tr[2]));
+  p_raw = (QMP6988_S32_t)(p_read - SUBTRACTOR);
+
+  t_read = (QMP6988_U32_t)((((QMP6988_U32_t)(a_data_uint8_tr[3])) << SHIFT_LEFT_16_POSITION) |
+                           (((QMP6988_U16_t)(a_data_uint8_tr[4])) << SHIFT_LEFT_8_POSITION) | (a_data_uint8_tr[5]));
+  t_raw = (QMP6988_S32_t)(t_read - SUBTRACTOR);
+
+  t_int = this->get_compensated_temperature_(&(qmp6988_data_.ik), t_raw);
+  p_int = this->get_compensated_pressure_(&(qmp6988_data_.ik), p_raw, t_int);
+
+  this->qmp6988_data_.temperature = (float) t_int / 256.0f;
+  this->qmp6988_data_.pressure = (float) p_int / 16.0f;
+}
+
+void QMP6988Component::setup() {
+  ESP_LOGCONFIG(TAG, "Setting up QMP6988");
+
+  bool ret;
+  ret = this->device_check_();
+  if (!ret) {
+    ESP_LOGCONFIG(TAG, "Setup failed - device not found");
+  }
+
+  this->software_reset_();
+  this->get_calibration_data_();
+  this->set_power_mode_(QMP6988_NORMAL_MODE);
+  this->write_filter_(iir_filter_);
+  this->write_oversampling_pressure_(this->pressure_oversampling_);
+  this->write_oversampling_temperature_(this->temperature_oversampling_);
+}
+
+void QMP6988Component::dump_config() {
+  ESP_LOGCONFIG(TAG, "QMP6988:");
+  LOG_I2C_DEVICE(this);
+  if (this->is_failed()) {
+    ESP_LOGE(TAG, "Communication with QMP6988 failed!");
+  }
+  LOG_UPDATE_INTERVAL(this);
+
+  LOG_SENSOR("  ", "Temperature", this->temperature_sensor_);
+  ESP_LOGCONFIG(TAG, "    Temperature Oversampling: %s", oversampling_to_str(this->temperature_oversampling_));
+  LOG_SENSOR("  ", "Pressure", this->pressure_sensor_);
+  ESP_LOGCONFIG(TAG, "    Pressure Oversampling: %s", oversampling_to_str(this->pressure_oversampling_));
+  ESP_LOGCONFIG(TAG, "  IIR Filter: %s", iir_filter_to_str(this->iir_filter_));
+}
+
+float QMP6988Component::get_setup_priority() const { return setup_priority::DATA; }
+
+void QMP6988Component::update() {
+  this->calculate_pressure_();
+  float pressurehectopascals = this->qmp6988_data_.pressure / 100;
+  float temperature = this->qmp6988_data_.temperature;
+
+  ESP_LOGD(TAG, "Temperature=%.2f°C, Pressure=%.2fhPa", temperature, pressurehectopascals);
+  if (this->temperature_sensor_ != nullptr)
+    this->temperature_sensor_->publish_state(temperature);
+  if (this->pressure_sensor_ != nullptr)
+    this->pressure_sensor_->publish_state(pressurehectopascals);
+}
+
+}  // namespace qmp6988
+}  // namespace esphome

esphome/components/qmp6988/qmp6988.h

@@ -0,0 +1,116 @@
+#pragma once
+
+#include "esphome/core/log.h"
+#include "esphome/core/component.h"
+#include "esphome/core/hal.h"
+#include "esphome/core/helpers.h"
+#include "esphome/components/sensor/sensor.h"
+#include "esphome/components/i2c/i2c.h"
+
+namespace esphome {
+namespace qmp6988 {
+
+#define QMP6988_U16_t unsigned short
+#define QMP6988_S16_t short
+#define QMP6988_U32_t unsigned int
+#define QMP6988_S32_t int
+#define QMP6988_U64_t unsigned long long
+#define QMP6988_S64_t long long
+
+/* oversampling */
+enum QMP6988Oversampling {
+  QMP6988_OVERSAMPLING_SKIPPED = 0x00,
+  QMP6988_OVERSAMPLING_1X = 0x01,
+  QMP6988_OVERSAMPLING_2X = 0x02,
+  QMP6988_OVERSAMPLING_4X = 0x03,
+  QMP6988_OVERSAMPLING_8X = 0x04,
+  QMP6988_OVERSAMPLING_16X = 0x05,
+  QMP6988_OVERSAMPLING_32X = 0x06,
+  QMP6988_OVERSAMPLING_64X = 0x07,
+};
+
+/* filter */
+enum QMP6988IIRFilter {
+  QMP6988_IIR_FILTER_OFF = 0x00,
+  QMP6988_IIR_FILTER_2X = 0x01,
+  QMP6988_IIR_FILTER_4X = 0x02,
+  QMP6988_IIR_FILTER_8X = 0x03,
+  QMP6988_IIR_FILTER_16X = 0x04,
+  QMP6988_IIR_FILTER_32X = 0x05,
+};
+
+using qmp6988_cali_data_t = struct Qmp6988CaliData {
+  QMP6988_S32_t COE_a0;
+  QMP6988_S16_t COE_a1;
+  QMP6988_S16_t COE_a2;
+  QMP6988_S32_t COE_b00;
+  QMP6988_S16_t COE_bt1;
+  QMP6988_S16_t COE_bt2;
+  QMP6988_S16_t COE_bp1;
+  QMP6988_S16_t COE_b11;
+  QMP6988_S16_t COE_bp2;
+  QMP6988_S16_t COE_b12;
+  QMP6988_S16_t COE_b21;
+  QMP6988_S16_t COE_bp3;
+};
+
+using qmp6988_fk_data_t = struct Qmp6988FkData {
+  float a0, b00;
+  float a1, a2, bt1, bt2, bp1, b11, bp2, b12, b21, bp3;
+};
+
+using qmp6988_ik_data_t = struct Qmp6988IkData {
+  QMP6988_S32_t a0, b00;
+  QMP6988_S32_t a1, a2;
+  QMP6988_S64_t bt1, bt2, bp1, b11, bp2, b12, b21, bp3;
+};
+
+using qmp6988_data_t = struct Qmp6988Data {
+  uint8_t chip_id;
+  uint8_t power_mode;
+  float temperature;
+  float pressure;
+  float altitude;
+  qmp6988_cali_data_t qmp6988_cali;
+  qmp6988_ik_data_t ik;
+};
+
+class QMP6988Component : public PollingComponent, public i2c::I2CDevice {
+ public:
+  void set_temperature_sensor(sensor::Sensor *temperature_sensor) { temperature_sensor_ = temperature_sensor; }
+  void set_pressure_sensor(sensor::Sensor *pressure_sensor) { pressure_sensor_ = pressure_sensor; }
+
+  void setup() override;
+  void dump_config() override;
+  float get_setup_priority() const override;
+  void update() override;
+
+  void set_iir_filter(QMP6988IIRFilter iirfilter);
+  void set_temperature_oversampling(QMP6988Oversampling oversampling_t);
+  void set_pressure_oversampling(QMP6988Oversampling oversampling_p);
+
+ protected:
+  qmp6988_data_t qmp6988_data_;
+  sensor::Sensor *temperature_sensor_;
+  sensor::Sensor *pressure_sensor_;
+
+  QMP6988Oversampling temperature_oversampling_{QMP6988_OVERSAMPLING_16X};
+  QMP6988Oversampling pressure_oversampling_{QMP6988_OVERSAMPLING_16X};
+  QMP6988IIRFilter iir_filter_{QMP6988_IIR_FILTER_OFF};
+
+  void software_reset_();
+  bool get_calibration_data_();
+  bool device_check_();
+  void set_power_mode_(uint8_t power_mode);
+  void write_oversampling_temperature_(unsigned char oversampling_t);
+  void write_oversampling_pressure_(unsigned char oversampling_p);
+  void write_filter_(unsigned char filter);
+  void calculate_pressure_();
+  void calculate_altitude_(float pressure, float temp);
+
+  QMP6988_S32_t get_compensated_pressure_(qmp6988_ik_data_t *ik, QMP6988_S32_t dp, QMP6988_S16_t tx);
+  QMP6988_S16_t get_compensated_temperature_(qmp6988_ik_data_t *ik, QMP6988_S32_t dt);
+};
+
+}  // namespace qmp6988
+}  // namespace esphome

esphome/components/qmp6988/sensor.py

@@ -0,0 +1,101 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import i2c, sensor
+from esphome.const import (
+    CONF_ID,
+    CONF_PRESSURE,
+    CONF_TEMPERATURE,
+    DEVICE_CLASS_PRESSURE,
+    DEVICE_CLASS_TEMPERATURE,
+    STATE_CLASS_MEASUREMENT,
+    UNIT_CELSIUS,
+    UNIT_HECTOPASCAL,
+    CONF_IIR_FILTER,
+    CONF_OVERSAMPLING,
+)
+
+DEPENDENCIES = ["i2c"]
+
+qmp6988_ns = cg.esphome_ns.namespace("qmp6988")
+QMP6988Component = qmp6988_ns.class_(
+    "QMP6988Component", cg.PollingComponent, i2c.I2CDevice
+)
+
+QMP6988Oversampling = qmp6988_ns.enum("QMP6988Oversampling")
+OVERSAMPLING_OPTIONS = {
+    "NONE": QMP6988Oversampling.QMP6988_OVERSAMPLING_SKIPPED,
+    "1X": QMP6988Oversampling.QMP6988_OVERSAMPLING_1X,
+    "2X": QMP6988Oversampling.QMP6988_OVERSAMPLING_2X,
+    "4X": QMP6988Oversampling.QMP6988_OVERSAMPLING_4X,
+    "8X": QMP6988Oversampling.QMP6988_OVERSAMPLING_8X,
+    "16X": QMP6988Oversampling.QMP6988_OVERSAMPLING_16X,
+    "32X": QMP6988Oversampling.QMP6988_OVERSAMPLING_32X,
+    "64X": QMP6988Oversampling.QMP6988_OVERSAMPLING_64X,
+}
+
+QMP6988IIRFilter = qmp6988_ns.enum("QMP6988IIRFilter")
+IIR_FILTER_OPTIONS = {
+    "OFF": QMP6988IIRFilter.QMP6988_IIR_FILTER_OFF,
+    "2X": QMP6988IIRFilter.QMP6988_IIR_FILTER_2X,
+    "4X": QMP6988IIRFilter.QMP6988_IIR_FILTER_4X,
+    "8X": QMP6988IIRFilter.QMP6988_IIR_FILTER_8X,
+    "16X": QMP6988IIRFilter.QMP6988_IIR_FILTER_16X,
+    "32X": QMP6988IIRFilter.QMP6988_IIR_FILTER_32X,
+}
+
+CONFIG_SCHEMA = (
+    cv.Schema(
+        {
+            cv.GenerateID(): cv.declare_id(QMP6988Component),
+            cv.Optional(CONF_TEMPERATURE): sensor.sensor_schema(
+                unit_of_measurement=UNIT_CELSIUS,
+                accuracy_decimals=1,
+                device_class=DEVICE_CLASS_TEMPERATURE,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ).extend(
+                {
+                    cv.Optional(CONF_OVERSAMPLING, default="8X"): cv.enum(
+                        OVERSAMPLING_OPTIONS, upper=True
+                    ),
+                }
+            ),
+            cv.Optional(CONF_PRESSURE): sensor.sensor_schema(
+                unit_of_measurement=UNIT_HECTOPASCAL,
+                accuracy_decimals=1,
+                device_class=DEVICE_CLASS_PRESSURE,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ).extend(
+                {
+                    cv.Optional(CONF_OVERSAMPLING, default="8X"): cv.enum(
+                        OVERSAMPLING_OPTIONS, upper=True
+                    ),
+                }
+            ),
+            cv.Optional(CONF_IIR_FILTER, default="OFF"): cv.enum(
+                IIR_FILTER_OPTIONS, upper=True
+            ),
+        }
+    )
+    .extend(cv.polling_component_schema("60s"))
+    .extend(i2c.i2c_device_schema(0x70))
+)
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await cg.register_component(var, config)
+    await i2c.register_i2c_device(var, config)
+
+    if CONF_TEMPERATURE in config:
+        conf = config[CONF_TEMPERATURE]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_temperature_sensor(sens))
+        cg.add(var.set_temperature_oversampling(conf[CONF_OVERSAMPLING]))
+
+    if CONF_PRESSURE in config:
+        conf = config[CONF_PRESSURE]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_pressure_sensor(sens))
+        cg.add(var.set_pressure_oversampling(conf[CONF_OVERSAMPLING]))
+
+    cg.add(var.set_iir_filter(config[CONF_IIR_FILTER]))

esphome/components/rc522_spi/rc522_spi.h

@@ -1,3 +1,10 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/rc522/rc522.h"
+#include "esphome/components/spi/spi.h"
+
+namespace esphome {
 /**
  * Library based on https://github.com/miguelbalboa/rfid
  * and adapted to ESPHome by @glmnet
@@ -6,14 +13,6 @@
  *
  *
  */
-
-#pragma once
-
-#include "esphome/core/component.h"
-#include "esphome/components/rc522/rc522.h"
-#include "esphome/components/spi/spi.h"
-
-namespace esphome {
 namespace rc522_spi {
 
 class RC522Spi : public rc522::RC522,

esphome/components/remote_base/pronto_protocol.cpp

@@ -40,6 +40,24 @@ namespace remote_base {
 
 static const char *const TAG = "remote.pronto";
 
+bool ProntoData::operator==(const ProntoData &rhs) const {
+  std::vector<uint16_t> data1 = encode_pronto(data);
+  std::vector<uint16_t> data2 = encode_pronto(rhs.data);
+
+  uint32_t total_diff = 0;
+  // Don't need to check the last one, it's the large gap at the end.
+  for (std::vector<uint16_t>::size_type i = 0; i < data1.size() - 1; ++i) {
+    int diff = data2[i] - data1[i];
+    diff *= diff;
+    if (diff > 9)
+      return false;
+
+    total_diff += diff;
+  }
+
+  return total_diff <= data1.size() * 3;
+}
+
 // DO NOT EXPORT from this file
 static const uint16_t MICROSECONDS_T_MAX = 0xFFFFU;
 static const uint16_t LEARNED_TOKEN = 0x0000U;
@@ -52,6 +70,7 @@ static const uint32_t REFERENCE_FREQUENCY = 4145146UL;
 static const uint16_t FALLBACK_FREQUENCY = 64767U;  // To use with frequency = 0;
 static const uint32_t MICROSECONDS_IN_SECONDS = 1000000UL;
 static const uint16_t PRONTO_DEFAULT_GAP = 45000;
+static const uint16_t MARK_EXCESS_MICROS = 20;
 
 static uint16_t to_frequency_k_hz(uint16_t code) {
   if (code == 0)
@@ -107,7 +126,7 @@ void ProntoProtocol::send_pronto_(RemoteTransmitData *dst, const std::vector<uin
   }
 }
 
-void ProntoProtocol::send_pronto_(RemoteTransmitData *dst, const std::string &str) {
+std::vector<uint16_t> encode_pronto(const std::string &str) {
   size_t len = str.length() / (DIGITS_IN_PRONTO_NUMBER + 1) + 1;
   std::vector<uint16_t> data;
   const char *p = str.c_str();
@@ -122,12 +141,90 @@ void ProntoProtocol::send_pronto_(RemoteTransmitData *dst, const std::string &st
     data.push_back(x);  // If input is conforming, there can be no overflow!
     p = *endptr;
   }
+
+  return data;
+}
+
+void ProntoProtocol::send_pronto_(RemoteTransmitData *dst, const std::string &str) {
+  std::vector<uint16_t> data = encode_pronto(str);
   send_pronto_(dst, data);
 }
 
 void ProntoProtocol::encode(RemoteTransmitData *dst, const ProntoData &data) { send_pronto_(dst, data.data); }
 
-optional<ProntoData> ProntoProtocol::decode(RemoteReceiveData src) { return {}; }
+uint16_t ProntoProtocol::effective_frequency_(uint16_t frequency) {
+  return frequency > 0 ? frequency : FALLBACK_FREQUENCY;
+}
+
+uint16_t ProntoProtocol::to_timebase_(uint16_t frequency) {
+  return MICROSECONDS_IN_SECONDS / effective_frequency_(frequency);
+}
+
+uint16_t ProntoProtocol::to_frequency_code_(uint16_t frequency) {
+  return REFERENCE_FREQUENCY / effective_frequency_(frequency);
+}
+
+std::string ProntoProtocol::dump_digit_(uint8_t x) {
+  return std::string(1, (char) (x <= 9 ? ('0' + x) : ('A' + (x - 10))));
+}
+
+std::string ProntoProtocol::dump_number_(uint16_t number, bool end /* = false */) {
+  std::string num;
+
+  for (uint8_t i = 0; i < DIGITS_IN_PRONTO_NUMBER; ++i) {
+    uint8_t shifts = BITS_IN_HEXADECIMAL * (DIGITS_IN_PRONTO_NUMBER - 1 - i);
+    num += dump_digit_((number >> shifts) & HEX_MASK);
+  }
+
+  if (!end)
+    num += ' ';
+
+  return num;
+}
+
+std::string ProntoProtocol::dump_duration_(uint32_t duration, uint16_t timebase, bool end /* = false */) {
+  return dump_number_((duration + timebase / 2) / timebase, end);
+}
+
+std::string ProntoProtocol::compensate_and_dump_sequence_(std::vector<int32_t> *data, uint16_t timebase) {
+  std::string out;
+
+  for (std::vector<int32_t>::size_type i = 0; i < data->size() - 1; i++) {
+    int32_t t_length = data->at(i);
+    uint32_t t_duration;
+    if (t_length > 0) {
+      // Mark
+      t_duration = t_length - MARK_EXCESS_MICROS;
+    } else {
+      t_duration = -t_length + MARK_EXCESS_MICROS;
+    }
+    out += dump_duration_(t_duration, timebase);
+  }
+
+  // append minimum gap
+  out += dump_duration_(PRONTO_DEFAULT_GAP, timebase, true);
+
+  return out;
+}
+
+optional<ProntoData> ProntoProtocol::decode(RemoteReceiveData src) {
+  ProntoData out;
+
+  uint16_t frequency = 38000U;
+  std::vector<int32_t> *data = src.get_raw_data();
+  std::string prontodata;
+
+  prontodata += dump_number_(frequency > 0 ? LEARNED_TOKEN : LEARNED_NON_MODULATED_TOKEN);
+  prontodata += dump_number_(to_frequency_code_(frequency));
+  prontodata += dump_number_((data->size() + 1) / 2);
+  prontodata += dump_number_(0);
+  uint16_t timebase = to_timebase_(frequency);
+  prontodata += compensate_and_dump_sequence_(data, timebase);
+
+  out.data = prontodata;
+
+  return out;
+}
 
 void ProntoProtocol::dump(const ProntoData &data) { ESP_LOGD(TAG, "Received Pronto: data=%s", data.data.c_str()); }
 

esphome/components/remote_base/pronto_protocol.h

@@ -6,10 +6,12 @@
 namespace esphome {
 namespace remote_base {
 
+std::vector<uint16_t> encode_pronto(const std::string &str);
+
 struct ProntoData {
   std::string data;
 
-  bool operator==(const ProntoData &rhs) const { return data == rhs.data; }
+  bool operator==(const ProntoData &rhs) const;
 };
 
 class ProntoProtocol : public RemoteProtocol<ProntoData> {
@@ -17,6 +19,14 @@ class ProntoProtocol : public RemoteProtocol<ProntoData> {
   void send_pronto_(RemoteTransmitData *dst, const std::vector<uint16_t> &data);
   void send_pronto_(RemoteTransmitData *dst, const std::string &str);
 
+  uint16_t effective_frequency_(uint16_t frequency);
+  uint16_t to_timebase_(uint16_t frequency);
+  uint16_t to_frequency_code_(uint16_t frequency);
+  std::string dump_digit_(uint8_t x);
+  std::string dump_number_(uint16_t number, bool end = false);
+  std::string dump_duration_(uint32_t duration, uint16_t timebase, bool end = false);
+  std::string compensate_and_dump_sequence_(std::vector<int32_t> *data, uint16_t timebase);
+
  public:
   void encode(RemoteTransmitData *dst, const ProntoData &data) override;
   optional<ProntoData> decode(RemoteReceiveData src) override;

esphome/components/scd30/scd30.cpp

@@ -33,14 +33,8 @@ void SCD30Component::setup() {
 #endif
 
   /// Firmware version identification
-  if (!this->write_command_(SCD30_CMD_GET_FIRMWARE_VERSION)) {
-    this->error_code_ = COMMUNICATION_FAILED;
-    this->mark_failed();
-    return;
-  }
   uint16_t raw_firmware_version[3];
-
-  if (!this->read_data_(raw_firmware_version, 3)) {
+  if (!this->get_register(SCD30_CMD_GET_FIRMWARE_VERSION, raw_firmware_version, 3)) {
     this->error_code_ = FIRMWARE_IDENTIFICATION_FAILED;
     this->mark_failed();
     return;
@@ -49,7 +43,7 @@ void SCD30Component::setup() {
            uint16_t(raw_firmware_version[0] & 0xFF));
 
   if (this->temperature_offset_ != 0) {
-    if (!this->write_command_(SCD30_CMD_TEMPERATURE_OFFSET, (uint16_t)(temperature_offset_ * 100.0))) {
+    if (!this->write_command(SCD30_CMD_TEMPERATURE_OFFSET, (uint16_t)(temperature_offset_ * 100.0))) {
       ESP_LOGE(TAG, "Sensor SCD30 error setting temperature offset.");
       this->error_code_ = MEASUREMENT_INIT_FAILED;
       this->mark_failed();
@@ -69,7 +63,7 @@ void SCD30Component::setup() {
   delay(30);
 #endif
 
-  if (!this->write_command_(SCD30_CMD_MEASUREMENT_INTERVAL, update_interval_)) {
+  if (!this->write_command(SCD30_CMD_MEASUREMENT_INTERVAL, update_interval_)) {
     ESP_LOGE(TAG, "Sensor SCD30 error setting update interval.");
     this->error_code_ = MEASUREMENT_INIT_FAILED;
     this->mark_failed();
@@ -81,7 +75,7 @@ void SCD30Component::setup() {
 
   // The start measurement command disables the altitude compensation, if any, so we only set it if it's turned on
   if (this->altitude_compensation_ != 0xFFFF) {
-    if (!this->write_command_(SCD30_CMD_ALTITUDE_COMPENSATION, altitude_compensation_)) {
+    if (!this->write_command(SCD30_CMD_ALTITUDE_COMPENSATION, altitude_compensation_)) {
       ESP_LOGE(TAG, "Sensor SCD30 error setting altitude compensation.");
       this->error_code_ = MEASUREMENT_INIT_FAILED;
       this->mark_failed();
@@ -92,7 +86,7 @@ void SCD30Component::setup() {
   delay(30);
 #endif
 
-  if (!this->write_command_(SCD30_CMD_AUTOMATIC_SELF_CALIBRATION, enable_asc_ ? 1 : 0)) {
+  if (!this->write_command(SCD30_CMD_AUTOMATIC_SELF_CALIBRATION, enable_asc_ ? 1 : 0)) {
     ESP_LOGE(TAG, "Sensor SCD30 error setting automatic self calibration.");
     this->error_code_ = MEASUREMENT_INIT_FAILED;
     this->mark_failed();
@@ -103,7 +97,7 @@ void SCD30Component::setup() {
 #endif
 
   /// Sensor initialization
-  if (!this->write_command_(SCD30_CMD_START_CONTINUOUS_MEASUREMENTS, this->ambient_pressure_compensation_)) {
+  if (!this->write_command(SCD30_CMD_START_CONTINUOUS_MEASUREMENTS, this->ambient_pressure_compensation_)) {
     ESP_LOGE(TAG, "Sensor SCD30 error starting continuous measurements.");
     this->error_code_ = MEASUREMENT_INIT_FAILED;
     this->mark_failed();
@@ -151,14 +145,14 @@ void SCD30Component::dump_config() {
 }
 
 void SCD30Component::update() {
-  uint16_t raw_read_status[1];
-  if (!this->read_data_(raw_read_status, 1) || raw_read_status[0] == 0x00) {
+  uint16_t raw_read_status;
+  if (!this->read_data(raw_read_status) || raw_read_status == 0x00) {
     this->status_set_warning();
     ESP_LOGW(TAG, "Data not ready yet!");
     return;
   }
 
-  if (!this->write_command_(SCD30_CMD_READ_MEASUREMENT)) {
+  if (!this->write_command(SCD30_CMD_READ_MEASUREMENT)) {
     ESP_LOGW(TAG, "Error reading measurement!");
     this->status_set_warning();
     return;
@@ -166,7 +160,7 @@ void SCD30Component::update() {
 
   this->set_timeout(50, [this]() {
     uint16_t raw_data[6];
-    if (!this->read_data_(raw_data, 6)) {
+    if (!this->read_data(raw_data, 6)) {
       this->status_set_warning();
       return;
     }
@@ -197,77 +191,16 @@ void SCD30Component::update() {
 }
 
 bool SCD30Component::is_data_ready_() {
-  if (!this->write_command_(SCD30_CMD_GET_DATA_READY_STATUS)) {
+  if (!this->write_command(SCD30_CMD_GET_DATA_READY_STATUS)) {
     return false;
   }
   delay(4);
   uint16_t is_data_ready;
-  if (!this->read_data_(&is_data_ready, 1)) {
+  if (!this->read_data(&is_data_ready, 1)) {
     return false;
   }
   return is_data_ready == 1;
 }
 
-bool SCD30Component::write_command_(uint16_t command) {
-  // Warning ugly, trick the I2Ccomponent base by setting register to the first 8 bit.
-  return this->write_byte(command >> 8, command & 0xFF);
-}
-
-bool SCD30Component::write_command_(uint16_t command, uint16_t data) {
-  uint8_t raw[5];
-  raw[0] = command >> 8;
-  raw[1] = command & 0xFF;
-  raw[2] = data >> 8;
-  raw[3] = data & 0xFF;
-  raw[4] = sht_crc_(raw[2], raw[3]);
-  return this->write(raw, 5) == i2c::ERROR_OK;
-}
-
-uint8_t SCD30Component::sht_crc_(uint8_t data1, uint8_t data2) {
-  uint8_t bit;
-  uint8_t crc = 0xFF;
-
-  crc ^= data1;
-  for (bit = 8; bit > 0; --bit) {
-    if (crc & 0x80) {
-      crc = (crc << 1) ^ 0x131;
-    } else {
-      crc = (crc << 1);
-    }
-  }
-
-  crc ^= data2;
-  for (bit = 8; bit > 0; --bit) {
-    if (crc & 0x80) {
-      crc = (crc << 1) ^ 0x131;
-    } else {
-      crc = (crc << 1);
-    }
-  }
-
-  return crc;
-}
-
-bool SCD30Component::read_data_(uint16_t *data, uint8_t len) {
-  const uint8_t num_bytes = len * 3;
-  std::vector<uint8_t> buf(num_bytes);
-
-  if (this->read(buf.data(), num_bytes) != i2c::ERROR_OK) {
-    return false;
-  }
-
-  for (uint8_t i = 0; i < len; i++) {
-    const uint8_t j = 3 * i;
-    uint8_t crc = sht_crc_(buf[j], buf[j + 1]);
-    if (crc != buf[j + 2]) {
-      ESP_LOGE(TAG, "CRC8 Checksum invalid! 0x%02X != 0x%02X", buf[j + 2], crc);
-      return false;
-    }
-    data[i] = (buf[j] << 8) | buf[j + 1];
-  }
-
-  return true;
-}
-
 }  // namespace scd30
 }  // namespace esphome

esphome/components/scd30/scd30.h

@@ -2,13 +2,13 @@
 
 #include "esphome/core/component.h"
 #include "esphome/components/sensor/sensor.h"
-#include "esphome/components/i2c/i2c.h"
+#include "esphome/components/sensirion_common/i2c_sensirion.h"
 
 namespace esphome {
 namespace scd30 {
 
 /// This class implements support for the Sensirion scd30 i2c GAS (VOC and CO2eq) sensors.
-class SCD30Component : public Component, public i2c::I2CDevice {
+class SCD30Component : public Component, public sensirion_common::SensirionI2CDevice {
  public:
   void set_co2_sensor(sensor::Sensor *co2) { co2_sensor_ = co2; }
   void set_humidity_sensor(sensor::Sensor *humidity) { humidity_sensor_ = humidity; }
@@ -27,10 +27,6 @@ class SCD30Component : public Component, public i2c::I2CDevice {
   float get_setup_priority() const override { return setup_priority::DATA; }
 
  protected:
-  bool write_command_(uint16_t command);
-  bool write_command_(uint16_t command, uint16_t data);
-  bool read_data_(uint16_t *data, uint8_t len);
-  uint8_t sht_crc_(uint8_t data1, uint8_t data2);
   bool is_data_ready_();
 
   enum ErrorCode {

esphome/components/scd30/sensor.py

@@ -2,6 +2,7 @@ from esphome import core
 import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.components import i2c, sensor
+from esphome.components import sensirion_common
 from esphome.const import (
     CONF_ID,
     CONF_HUMIDITY,
@@ -18,9 +19,12 @@ from esphome.const import (
 )
 
 DEPENDENCIES = ["i2c"]
+AUTO_LOAD = ["sensirion_common"]
 
 scd30_ns = cg.esphome_ns.namespace("scd30")
-SCD30Component = scd30_ns.class_("SCD30Component", cg.Component, i2c.I2CDevice)
+SCD30Component = scd30_ns.class_(
+    "SCD30Component", cg.Component, sensirion_common.SensirionI2CDevice
+)
 
 CONF_AUTOMATIC_SELF_CALIBRATION = "automatic_self_calibration"
 CONF_ALTITUDE_COMPENSATION = "altitude_compensation"

esphome/components/scd4x/automation.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/core/automation.h"
+#include "scd4x.h"
+
+namespace esphome {
+namespace scd4x {
+
+template<typename... Ts> class PerformForcedCalibrationAction : public Action<Ts...>, public Parented<SCD4XComponent> {
+ public:
+  void play(Ts... x) override {
+    if (this->value_.has_value()) {
+      this->parent_->perform_forced_calibration(value_.value());
+    }
+  }
+
+ protected:
+  TEMPLATABLE_VALUE(uint16_t, value)
+};
+
+template<typename... Ts> class FactoryResetAction : public Action<Ts...>, public Parented<SCD4XComponent> {
+ public:
+  void play(Ts... x) override { this->parent_->factory_reset(); }
+};
+
+}  // namespace scd4x
+}  // namespace esphome

esphome/components/scd4x/scd4x.cpp

@@ -13,55 +13,34 @@ static const uint16_t SCD4X_CMD_ALTITUDE_COMPENSATION = 0x2427;
 static const uint16_t SCD4X_CMD_AMBIENT_PRESSURE_COMPENSATION = 0xe000;
 static const uint16_t SCD4X_CMD_AUTOMATIC_SELF_CALIBRATION = 0x2416;
 static const uint16_t SCD4X_CMD_START_CONTINUOUS_MEASUREMENTS = 0x21b1;
+static const uint16_t SCD4X_CMD_START_LOW_POWER_CONTINUOUS_MEASUREMENTS = 0x21ac;
+static const uint16_t SCD4X_CMD_START_LOW_POWER_SINGLE_SHOT = 0x219d;  // SCD41 only
+static const uint16_t SCD4X_CMD_START_LOW_POWER_SINGLE_SHOT_RHT_ONLY = 0x2196;
 static const uint16_t SCD4X_CMD_GET_DATA_READY_STATUS = 0xe4b8;
 static const uint16_t SCD4X_CMD_READ_MEASUREMENT = 0xec05;
 static const uint16_t SCD4X_CMD_PERFORM_FORCED_CALIBRATION = 0x362f;
 static const uint16_t SCD4X_CMD_STOP_MEASUREMENTS = 0x3f86;
-
+static const uint16_t SCD4X_CMD_FACTORY_RESET = 0x3632;
+static const uint16_t SCD4X_CMD_GET_FEATURESET = 0x202f;
 static const float SCD4X_TEMPERATURE_OFFSET_MULTIPLIER = (1 << 16) / 175.0f;
+static const uint16_t SCD41_ID = 0x1408;
+static const uint16_t SCD40_ID = 0x440;
 
 void SCD4XComponent::setup() {
   ESP_LOGCONFIG(TAG, "Setting up scd4x...");
-
   // the sensor needs 1000 ms to enter the idle state
   this->set_timeout(1000, [this]() {
-    // Check if measurement is ready before reading the value
-    if (!this->write_command_(SCD4X_CMD_GET_DATA_READY_STATUS)) {
-      ESP_LOGE(TAG, "Failed to write data ready status command");
+    this->status_clear_error();
+    if (!this->write_command(SCD4X_CMD_STOP_MEASUREMENTS)) {
+      ESP_LOGE(TAG, "Failed to stop measurements");
       this->mark_failed();
       return;
     }
-
-    uint16_t raw_read_status[1];
-    if (!this->read_data_(raw_read_status, 1)) {
-      ESP_LOGE(TAG, "Failed to read data ready status");
-      this->mark_failed();
-      return;
-    }
-
-    uint32_t stop_measurement_delay = 0;
-    // In order to query the device periodic measurement must be ceased
-    if (raw_read_status[0]) {
-      ESP_LOGD(TAG, "Sensor has data available, stopping periodic measurement");
-      if (!this->write_command_(SCD4X_CMD_STOP_MEASUREMENTS)) {
-        ESP_LOGE(TAG, "Failed to stop measurements");
-        this->mark_failed();
-        return;
-      }
-      // According to the SCD4x datasheet the sensor will only respond to other commands after waiting 500 ms after
-      // issuing the stop_periodic_measurement command
-      stop_measurement_delay = 500;
-    }
-    this->set_timeout(stop_measurement_delay, [this]() {
-      if (!this->write_command_(SCD4X_CMD_GET_SERIAL_NUMBER)) {
-        ESP_LOGE(TAG, "Failed to write get serial command");
-        this->error_code_ = COMMUNICATION_FAILED;
-        this->mark_failed();
-        return;
-      }
-
+    // According to the SCD4x datasheet the sensor will only respond to other commands after waiting 500 ms after
+    // issuing the stop_periodic_measurement command
+    this->set_timeout(500, [this]() {
       uint16_t raw_serial_number[3];
-      if (!this->read_data_(raw_serial_number, 3)) {
+      if (!this->get_register(SCD4X_CMD_GET_SERIAL_NUMBER, raw_serial_number, 3, 1)) {
         ESP_LOGE(TAG, "Failed to read serial number");
         this->error_code_ = SERIAL_NUMBER_IDENTIFICATION_FAILED;
         this->mark_failed();
@@ -70,8 +49,8 @@ void SCD4XComponent::setup() {
       ESP_LOGD(TAG, "Serial number %02d.%02d.%02d", (uint16_t(raw_serial_number[0]) >> 8),
                uint16_t(raw_serial_number[0] & 0xFF), (uint16_t(raw_serial_number[1]) >> 8));
 
-      if (!this->write_command_(SCD4X_CMD_TEMPERATURE_OFFSET,
-                                (uint16_t)(temperature_offset_ * SCD4X_TEMPERATURE_OFFSET_MULTIPLIER))) {
+      if (!this->write_command(SCD4X_CMD_TEMPERATURE_OFFSET,
+                               (uint16_t)(temperature_offset_ * SCD4X_TEMPERATURE_OFFSET_MULTIPLIER))) {
         ESP_LOGE(TAG, "Error setting temperature offset.");
         this->error_code_ = MEASUREMENT_INIT_FAILED;
         this->mark_failed();
@@ -88,7 +67,7 @@ void SCD4XComponent::setup() {
           return;
         }
       } else {
-        if (!this->write_command_(SCD4X_CMD_ALTITUDE_COMPENSATION, altitude_compensation_)) {
+        if (!this->write_command(SCD4X_CMD_ALTITUDE_COMPENSATION, altitude_compensation_)) {
           ESP_LOGE(TAG, "Error setting altitude compensation.");
           this->error_code_ = MEASUREMENT_INIT_FAILED;
           this->mark_failed();
@@ -96,22 +75,16 @@ void SCD4XComponent::setup() {
         }
       }
 
-      if (!this->write_command_(SCD4X_CMD_AUTOMATIC_SELF_CALIBRATION, enable_asc_ ? 1 : 0)) {
+      if (!this->write_command(SCD4X_CMD_AUTOMATIC_SELF_CALIBRATION, enable_asc_ ? 1 : 0)) {
         ESP_LOGE(TAG, "Error setting automatic self calibration.");
         this->error_code_ = MEASUREMENT_INIT_FAILED;
         this->mark_failed();
         return;
       }
 
-      // Finally start sensor measurements
-      if (!this->write_command_(SCD4X_CMD_START_CONTINUOUS_MEASUREMENTS)) {
-        ESP_LOGE(TAG, "Error starting continuous measurements.");
-        this->error_code_ = MEASUREMENT_INIT_FAILED;
-        this->mark_failed();
-        return;
-      }
-
       initialized_ = true;
+      // Finally start sensor measurements
+      this->start_measurement_();
       ESP_LOGD(TAG, "Sensor initialized");
     });
   });
@@ -137,12 +110,31 @@ void SCD4XComponent::dump_config() {
     }
   }
   ESP_LOGCONFIG(TAG, "  Automatic self calibration: %s", ONOFF(this->enable_asc_));
-  if (this->ambient_pressure_compensation_) {
-    ESP_LOGCONFIG(TAG, "  Altitude compensation disabled");
-    ESP_LOGCONFIG(TAG, "  Ambient pressure compensation: %dmBar", this->ambient_pressure_);
+  if (this->ambient_pressure_source_ != nullptr) {
+    ESP_LOGCONFIG(TAG, "  Dynamic ambient pressure compensation using sensor '%s'",
+                  this->ambient_pressure_source_->get_name().c_str());
   } else {
-    ESP_LOGCONFIG(TAG, "  Ambient pressure compensation disabled");
-    ESP_LOGCONFIG(TAG, "  Altitude compensation: %dm", this->altitude_compensation_);
+    if (this->ambient_pressure_compensation_) {
+      ESP_LOGCONFIG(TAG, "  Altitude compensation disabled");
+      ESP_LOGCONFIG(TAG, "  Ambient pressure compensation: %dmBar", this->ambient_pressure_);
+    } else {
+      ESP_LOGCONFIG(TAG, "  Ambient pressure compensation disabled");
+      ESP_LOGCONFIG(TAG, "  Altitude compensation: %dm", this->altitude_compensation_);
+    }
+  }
+  switch (this->measurement_mode_) {
+    case PERIODIC:
+      ESP_LOGCONFIG(TAG, "  Measurement mode: periodic (5s)");
+      break;
+    case LOW_POWER_PERIODIC:
+      ESP_LOGCONFIG(TAG, "  Measurement mode: low power periodic (30s)");
+      break;
+    case SINGLE_SHOT:
+      ESP_LOGCONFIG(TAG, "  Measurement mode: single shot");
+      break;
+    case SINGLE_SHOT_RHT_ONLY:
+      ESP_LOGCONFIG(TAG, "  Measurement mode: single shot rht only");
+      break;
   }
   ESP_LOGCONFIG(TAG, "  Temperature offset: %.2f °C", this->temperature_offset_);
   LOG_UPDATE_INTERVAL(this);
@@ -163,47 +155,105 @@ void SCD4XComponent::update() {
     }
   }
 
-  // Check if data is ready
-  if (!this->write_command_(SCD4X_CMD_GET_DATA_READY_STATUS)) {
-    this->status_set_warning();
-    return;
+  uint32_t wait_time = 0;
+  if (this->measurement_mode_ == SINGLE_SHOT || this->measurement_mode_ == SINGLE_SHOT_RHT_ONLY) {
+    start_measurement_();
+    wait_time =
+        this->measurement_mode_ == SINGLE_SHOT ? 5000 : 50;  // Single shot measurement takes 5 secs rht mode 50 ms
   }
+  this->set_timeout(wait_time, [this]() {
+    // Check if data is ready
+    if (!this->write_command(SCD4X_CMD_GET_DATA_READY_STATUS)) {
+      this->status_set_warning();
+      return;
+    }
 
-  uint16_t raw_read_status[1];
-  if (!this->read_data_(raw_read_status, 1) || raw_read_status[0] == 0x00) {
-    this->status_set_warning();
-    ESP_LOGW(TAG, "Data not ready yet!");
-    return;
-  }
+    uint16_t raw_read_status;
 
-  if (!this->write_command_(SCD4X_CMD_READ_MEASUREMENT)) {
-    ESP_LOGW(TAG, "Error reading measurement!");
-    this->status_set_warning();
-    return;
-  }
+    if (!this->read_data(raw_read_status) || raw_read_status == 0x00) {
+      this->status_set_warning();
+      ESP_LOGW(TAG, "Data not ready yet!");
+      return;
+    }
 
-  // Read off sensor data
-  uint16_t raw_data[3];
-  if (!this->read_data_(raw_data, 3)) {
-    this->status_set_warning();
-    return;
-  }
+    if (!this->write_command(SCD4X_CMD_READ_MEASUREMENT)) {
+      ESP_LOGW(TAG, "Error reading measurement!");
+      this->status_set_warning();
+      return;  // NO RETRY
+    }
+    // Read off sensor data
+    uint16_t raw_data[3];
+    if (!this->read_data(raw_data, 3)) {
+      this->status_set_warning();
+      return;
+    }
+    if (this->co2_sensor_ != nullptr)
+      this->co2_sensor_->publish_state(raw_data[0]);
 
-  if (this->co2_sensor_ != nullptr)
-    this->co2_sensor_->publish_state(raw_data[0]);
-
-  if (this->temperature_sensor_ != nullptr) {
-    const float temperature = -45.0f + (175.0f * (raw_data[1])) / (1 << 16);
-    this->temperature_sensor_->publish_state(temperature);
-  }
-
-  if (this->humidity_sensor_ != nullptr) {
-    const float humidity = (100.0f * raw_data[2]) / (1 << 16);
-    this->humidity_sensor_->publish_state(humidity);
-  }
-
-  this->status_clear_warning();
+    if (this->temperature_sensor_ != nullptr) {
+      const float temperature = -45.0f + (175.0f * (raw_data[1])) / (1 << 16);
+      this->temperature_sensor_->publish_state(temperature);
+    }
+    if (this->humidity_sensor_ != nullptr) {
+      const float humidity = (100.0f * raw_data[2]) / (1 << 16);
+      this->humidity_sensor_->publish_state(humidity);
+    }
+    this->status_clear_warning();
+  });  // set_timeout
 }
+
+bool SCD4XComponent::perform_forced_calibration(uint16_t current_co2_concentration) {
+  /*
+    Operate the SCD4x in the operation mode later used in normal sensor operation (periodic measurement, low power
+    periodic measurement or single shot) for > 3 minutes in an environment with homogenous and constant CO2
+    concentration before performing a forced recalibration.
+  */
+  if (!this->write_command(SCD4X_CMD_STOP_MEASUREMENTS)) {
+    ESP_LOGE(TAG, "Failed to stop measurements");
+    this->status_set_warning();
+  }
+  this->set_timeout(500, [this, current_co2_concentration]() {
+    if (this->write_command(SCD4X_CMD_PERFORM_FORCED_CALIBRATION, current_co2_concentration)) {
+      ESP_LOGD(TAG, "setting forced calibration Co2 level %d ppm", current_co2_concentration);
+      // frc takes 400 ms
+      // because this method will be used very rarly
+      // the simple aproach with delay is ok
+      delay(400);  // NOLINT'
+      if (!this->start_measurement_()) {
+        return false;
+      } else {
+        ESP_LOGD(TAG, "forced calibration complete");
+      }
+      return true;
+    } else {
+      ESP_LOGE(TAG, "force calibration failed");
+      this->error_code_ = FRC_FAILED;
+      this->status_set_warning();
+      return false;
+    }
+  });
+  return true;
+}
+
+bool SCD4XComponent::factory_reset() {
+  if (!this->write_command(SCD4X_CMD_STOP_MEASUREMENTS)) {
+    ESP_LOGE(TAG, "Failed to stop measurements");
+    this->status_set_warning();
+    return false;
+  }
+
+  this->set_timeout(500, [this]() {
+    if (!this->write_command(SCD4X_CMD_FACTORY_RESET)) {
+      ESP_LOGE(TAG, "Failed to send factory reset command");
+      this->status_set_warning();
+      return false;
+    }
+    ESP_LOGD(TAG, "Factory reset complete");
+    return true;
+  });
+  return true;
+}
+
 // Note pressure in bar here. Convert to hPa
 void SCD4XComponent::set_ambient_pressure_compensation(float pressure_in_bar) {
   ambient_pressure_compensation_ = true;
@@ -218,7 +268,7 @@ void SCD4XComponent::set_ambient_pressure_compensation(float pressure_in_bar) {
 }
 
 bool SCD4XComponent::update_ambient_pressure_compensation_(uint16_t pressure_in_hpa) {
-  if (this->write_command_(SCD4X_CMD_AMBIENT_PRESSURE_COMPENSATION, pressure_in_hpa)) {
+  if (this->write_command(SCD4X_CMD_AMBIENT_PRESSURE_COMPENSATION, pressure_in_hpa)) {
     ESP_LOGD(TAG, "setting ambient pressure compensation to %d hPa", pressure_in_hpa);
     return true;
   } else {
@@ -227,69 +277,37 @@ bool SCD4XComponent::update_ambient_pressure_compensation_(uint16_t pressure_in_
   }
 }
 
-uint8_t SCD4XComponent::sht_crc_(uint8_t data1, uint8_t data2) {
-  uint8_t bit;
-  uint8_t crc = 0xFF;
+bool SCD4XComponent::start_measurement_() {
+  uint16_t measurement_command = SCD4X_CMD_START_CONTINUOUS_MEASUREMENTS;
+  switch (this->measurement_mode_) {
+    case PERIODIC:
+      measurement_command = SCD4X_CMD_START_CONTINUOUS_MEASUREMENTS;
+      break;
+    case LOW_POWER_PERIODIC:
+      measurement_command = SCD4X_CMD_START_LOW_POWER_CONTINUOUS_MEASUREMENTS;
+      break;
+    case SINGLE_SHOT:
+      measurement_command = SCD4X_CMD_START_LOW_POWER_SINGLE_SHOT;
+      break;
+    case SINGLE_SHOT_RHT_ONLY:
+      measurement_command = SCD4X_CMD_START_LOW_POWER_SINGLE_SHOT_RHT_ONLY;
+      break;
+  }
 
-  crc ^= data1;
-  for (bit = 8; bit > 0; --bit) {
-    if (crc & 0x80) {
-      crc = (crc << 1) ^ 0x131;
-    } else {
-      crc = (crc << 1);
+  static uint8_t remaining_retries = 3;
+  while (remaining_retries) {
+    if (!this->write_command(measurement_command)) {
+      ESP_LOGE(TAG, "Error starting measurements.");
+      this->error_code_ = MEASUREMENT_INIT_FAILED;
+      this->status_set_warning();
+      if (--remaining_retries == 0)
+        return false;
+      delay(50);  // NOLINT wait 50 ms and try again
     }
+    this->status_clear_warning();
+    return true;
   }
-
-  crc ^= data2;
-  for (bit = 8; bit > 0; --bit) {
-    if (crc & 0x80) {
-      crc = (crc << 1) ^ 0x131;
-    } else {
-      crc = (crc << 1);
-    }
-  }
-
-  return crc;
-}
-
-bool SCD4XComponent::read_data_(uint16_t *data, uint8_t len) {
-  const uint8_t num_bytes = len * 3;
-  std::vector<uint8_t> buf(num_bytes);
-
-  if (this->read(buf.data(), num_bytes) != i2c::ERROR_OK) {
-    return false;
-  }
-
-  for (uint8_t i = 0; i < len; i++) {
-    const uint8_t j = 3 * i;
-    uint8_t crc = sht_crc_(buf[j], buf[j + 1]);
-    if (crc != buf[j + 2]) {
-      ESP_LOGE(TAG, "CRC8 Checksum invalid! 0x%02X != 0x%02X", buf[j + 2], crc);
-      return false;
-    }
-    data[i] = (buf[j] << 8) | buf[j + 1];
-  }
-  return true;
-}
-
-bool SCD4XComponent::write_command_(uint16_t command) {
-  const uint8_t num_bytes = 2;
-  uint8_t buffer[num_bytes];
-
-  buffer[0] = (command >> 8);
-  buffer[1] = command & 0xff;
-
-  return this->write(buffer, num_bytes) == i2c::ERROR_OK;
-}
-
-bool SCD4XComponent::write_command_(uint16_t command, uint16_t data) {
-  uint8_t raw[5];
-  raw[0] = command >> 8;
-  raw[1] = command & 0xFF;
-  raw[2] = data >> 8;
-  raw[3] = data & 0xFF;
-  raw[4] = sht_crc_(raw[2], raw[3]);
-  return this->write(raw, 5) == i2c::ERROR_OK;
+  return false;
 }
 
 }  // namespace scd4x

esphome/components/scd4x/scd4x.h

@@ -1,15 +1,23 @@
 #pragma once
-
+#include <vector>
+#include "esphome/core/application.h"
 #include "esphome/core/component.h"
 #include "esphome/components/sensor/sensor.h"
-#include "esphome/components/i2c/i2c.h"
+#include "esphome/components/sensirion_common/i2c_sensirion.h"
 
 namespace esphome {
 namespace scd4x {
 
-enum ERRORCODE { COMMUNICATION_FAILED, SERIAL_NUMBER_IDENTIFICATION_FAILED, MEASUREMENT_INIT_FAILED, UNKNOWN };
+enum ERRORCODE {
+  COMMUNICATION_FAILED,
+  SERIAL_NUMBER_IDENTIFICATION_FAILED,
+  MEASUREMENT_INIT_FAILED,
+  FRC_FAILED,
+  UNKNOWN
+};
+enum MeasurementMode { PERIODIC, LOW_POWER_PERIODIC, SINGLE_SHOT, SINGLE_SHOT_RHT_ONLY };
 
-class SCD4XComponent : public PollingComponent, public i2c::I2CDevice {
+class SCD4XComponent : public PollingComponent, public sensirion_common::SensirionI2CDevice {
  public:
   float get_setup_priority() const override { return setup_priority::DATA; }
   void setup() override;
@@ -25,14 +33,13 @@ class SCD4XComponent : public PollingComponent, public i2c::I2CDevice {
   void set_co2_sensor(sensor::Sensor *co2) { co2_sensor_ = co2; }
   void set_temperature_sensor(sensor::Sensor *temperature) { temperature_sensor_ = temperature; };
   void set_humidity_sensor(sensor::Sensor *humidity) { humidity_sensor_ = humidity; }
+  void set_measurement_mode(MeasurementMode mode) { measurement_mode_ = mode; }
+  bool perform_forced_calibration(uint16_t current_co2_concentration);
+  bool factory_reset();
 
  protected:
-  uint8_t sht_crc_(uint8_t data1, uint8_t data2);
-  bool read_data_(uint16_t *data, uint8_t len);
-  bool write_command_(uint16_t command);
-  bool write_command_(uint16_t command, uint16_t data);
   bool update_ambient_pressure_compensation_(uint16_t pressure_in_hpa);
-
+  bool start_measurement_();
   ERRORCODE error_code_;
 
   bool initialized_{false};
@@ -42,7 +49,7 @@ class SCD4XComponent : public PollingComponent, public i2c::I2CDevice {
   bool ambient_pressure_compensation_;
   uint16_t ambient_pressure_;
   bool enable_asc_;
-
+  MeasurementMode measurement_mode_{PERIODIC};
   sensor::Sensor *co2_sensor_{nullptr};
   sensor::Sensor *temperature_sensor_{nullptr};
   sensor::Sensor *humidity_sensor_{nullptr};

esphome/components/scd4x/sensor.py

@@ -1,12 +1,16 @@
 import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.components import i2c, sensor
+from esphome.components import sensirion_common
+from esphome import automation
+from esphome.automation import maybe_simple_id
 
 from esphome.const import (
     CONF_ID,
     CONF_CO2,
     CONF_HUMIDITY,
     CONF_TEMPERATURE,
+    CONF_VALUE,
     DEVICE_CLASS_CARBON_DIOXIDE,
     DEVICE_CLASS_HUMIDITY,
     DEVICE_CLASS_TEMPERATURE,
@@ -19,17 +23,37 @@ from esphome.const import (
     UNIT_PERCENT,
 )
 
-CODEOWNERS = ["@sjtrny"]
+CODEOWNERS = ["@sjtrny", "@martgras"]
 DEPENDENCIES = ["i2c"]
+AUTO_LOAD = ["sensirion_common"]
 
 scd4x_ns = cg.esphome_ns.namespace("scd4x")
-SCD4XComponent = scd4x_ns.class_("SCD4XComponent", cg.PollingComponent, i2c.I2CDevice)
+SCD4XComponent = scd4x_ns.class_(
+    "SCD4XComponent", cg.PollingComponent, sensirion_common.SensirionI2CDevice
+)
+MeasurementMode = scd4x_ns.enum("MEASUREMENT_MODE")
+MEASUREMENT_MODE_OPTIONS = {
+    "periodic": MeasurementMode.PERIODIC,
+    "low_power_periodic": MeasurementMode.LOW_POWER_PERIODIC,
+    "single_shot": MeasurementMode.SINGLE_SHOT,
+    "single_shot_rht_only": MeasurementMode.SINGLE_SHOT_RHT_ONLY,
+}
+
+
+# Actions
+PerformForcedCalibrationAction = scd4x_ns.class_(
+    "PerformForcedCalibrationAction", automation.Action
+)
+FactoryResetAction = scd4x_ns.class_("FactoryResetAction", automation.Action)
+
 
-CONF_AUTOMATIC_SELF_CALIBRATION = "automatic_self_calibration"
 CONF_ALTITUDE_COMPENSATION = "altitude_compensation"
 CONF_AMBIENT_PRESSURE_COMPENSATION = "ambient_pressure_compensation"
-CONF_TEMPERATURE_OFFSET = "temperature_offset"
 CONF_AMBIENT_PRESSURE_COMPENSATION_SOURCE = "ambient_pressure_compensation_source"
+CONF_AUTOMATIC_SELF_CALIBRATION = "automatic_self_calibration"
+CONF_MEASUREMENT_MODE = "measurement_mode"
+CONF_TEMPERATURE_OFFSET = "temperature_offset"
+
 
 CONFIG_SCHEMA = (
     cv.Schema(
@@ -66,6 +90,9 @@ CONFIG_SCHEMA = (
             cv.Optional(CONF_AMBIENT_PRESSURE_COMPENSATION_SOURCE): cv.use_id(
                 sensor.Sensor
             ),
+            cv.Optional(CONF_MEASUREMENT_MODE, default="periodic"): cv.enum(
+                MEASUREMENT_MODE_OPTIONS, lower=True
+            ),
         }
     )
     .extend(cv.polling_component_schema("60s"))
@@ -103,3 +130,42 @@ async def to_code(config):
     if CONF_AMBIENT_PRESSURE_COMPENSATION_SOURCE in config:
         sens = await cg.get_variable(config[CONF_AMBIENT_PRESSURE_COMPENSATION_SOURCE])
         cg.add(var.set_ambient_pressure_source(sens))
+
+    cg.add(var.set_measurement_mode(config[CONF_MEASUREMENT_MODE]))
+
+
+SCD4X_ACTION_SCHEMA = maybe_simple_id(
+    {
+        cv.GenerateID(): cv.use_id(SCD4XComponent),
+        cv.Required(CONF_VALUE): cv.templatable(cv.positive_int),
+    }
+)
+
+
+@automation.register_action(
+    "scd4x.perform_forced_calibration",
+    PerformForcedCalibrationAction,
+    SCD4X_ACTION_SCHEMA,
+)
+async def scd4x_frc_to_code(config, action_id, template_arg, args):
+    var = cg.new_Pvariable(action_id, template_arg)
+    await cg.register_parented(var, config[CONF_ID])
+    template_ = await cg.templatable(config[CONF_VALUE], args, cg.uint16)
+    cg.add(var.set_value(template_))
+    return var
+
+
+SCD4X_RESET_ACTION_SCHEMA = maybe_simple_id(
+    {
+        cv.Required(CONF_ID): cv.use_id(SCD4XComponent),
+    }
+)
+
+
+@automation.register_action(
+    "scd4x.factory_reset", FactoryResetAction, SCD4X_RESET_ACTION_SCHEMA
+)
+async def scd4x_reset_to_code(config, action_id, template_arg, args):
+    var = cg.new_Pvariable(action_id, template_arg)
+    await cg.register_parented(var, config[CONF_ID])
+    return var

esphome/components/sdp3x/sdp3x.cpp

@@ -7,55 +7,50 @@ namespace esphome {
 namespace sdp3x {
 
 static const char *const TAG = "sdp3x.sensor";
-static const uint8_t SDP3X_SOFT_RESET[2] = {0x00, 0x06};
-static const uint8_t SDP3X_READ_ID1[2] = {0x36, 0x7C};
-static const uint8_t SDP3X_READ_ID2[2] = {0xE1, 0x02};
-static const uint8_t SDP3X_START_DP_AVG[2] = {0x36, 0x15};
-static const uint8_t SDP3X_START_MASS_FLOW_AVG[2] = {0x36, 0x03};
-static const uint8_t SDP3X_STOP_MEAS[2] = {0x3F, 0xF9};
+static const uint16_t SDP3X_SOFT_RESET = 0x0006;
+static const uint16_t SDP3X_READ_ID1 = 0x367C;
+static const uint16_t SDP3X_READ_ID2 = 0xE102;
+static const uint16_t SDP3X_START_DP_AVG = 0x3615;
+static const uint16_t SDP3X_START_MASS_FLOW_AVG = 0x3603;
+static const uint16_t SDP3X_STOP_MEAS = 0x3FF9;
 
 void SDP3XComponent::update() { this->read_pressure_(); }
 
 void SDP3XComponent::setup() {
   ESP_LOGD(TAG, "Setting up SDP3X...");
 
-  if (this->write(SDP3X_STOP_MEAS, 2) != i2c::ERROR_OK) {
+  if (!this->write_command(SDP3X_STOP_MEAS)) {
     ESP_LOGW(TAG, "Stop SDP3X failed!");  // This sometimes fails for no good reason
   }
 
-  if (this->write(SDP3X_SOFT_RESET, 2) != i2c::ERROR_OK) {
+  if (!this->write_command(SDP3X_SOFT_RESET)) {
     ESP_LOGW(TAG, "Soft Reset SDP3X failed!");  // This sometimes fails for no good reason
   }
 
   this->set_timeout(20, [this] {
-    if (this->write(SDP3X_READ_ID1, 2) != i2c::ERROR_OK) {
+    if (!this->write_command(SDP3X_READ_ID1)) {
       ESP_LOGE(TAG, "Read ID1 SDP3X failed!");
       this->mark_failed();
       return;
     }
-    if (this->write(SDP3X_READ_ID2, 2) != i2c::ERROR_OK) {
+    if (!this->write_command(SDP3X_READ_ID2)) {
       ESP_LOGE(TAG, "Read ID2 SDP3X failed!");
       this->mark_failed();
       return;
     }
 
-    uint8_t data[18];
-    if (this->read(data, 18) != i2c::ERROR_OK) {
+    uint16_t data[6];
+    if (this->read_data(data, 6) != i2c::ERROR_OK) {
       ESP_LOGE(TAG, "Read ID SDP3X failed!");
       this->mark_failed();
       return;
     }
-    if (!(check_crc_(&data[0], 2, data[2]) && check_crc_(&data[3], 2, data[5]))) {
-      ESP_LOGE(TAG, "CRC ID SDP3X failed!");
-      this->mark_failed();
-      return;
-    }
 
     // SDP8xx
     // ref:
     // https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/8_Differential_Pressure/Datasheets/Sensirion_Differential_Pressure_Datasheet_SDP8xx_Digital.pdf
-    if (data[2] == 0x02) {
-      switch (data[3]) {
+    if (data[1] >> 8 == 0x02) {
+      switch (data[1] & 0xFF) {
         case 0x01:  // SDP800-500Pa
           ESP_LOGCONFIG(TAG, "Sensor is SDP800-500Pa");
           break;
@@ -75,15 +70,16 @@ void SDP3XComponent::setup() {
           ESP_LOGCONFIG(TAG, "Sensor is SDP810-125Pa");
           break;
       }
-    } else if (data[2] == 0x01) {
-      if (data[3] == 0x01) {
+    } else if (data[1] >> 8 == 0x01) {
+      if ((data[1] & 0xFF) == 0x01) {
         ESP_LOGCONFIG(TAG, "Sensor is SDP31-500Pa");
-      } else if (data[3] == 0x02) {
+      } else if ((data[1] & 0xFF) == 0x02) {
         ESP_LOGCONFIG(TAG, "Sensor is SDP32-125Pa");
       }
     }
 
-    if (this->write(measurement_mode_ == DP_AVG ? SDP3X_START_DP_AVG : SDP3X_START_MASS_FLOW_AVG, 2) != i2c::ERROR_OK) {
+    if (this->write_command(measurement_mode_ == DP_AVG ? SDP3X_START_DP_AVG : SDP3X_START_MASS_FLOW_AVG) !=
+        i2c::ERROR_OK) {
       ESP_LOGE(TAG, "Start Measurements SDP3X failed!");
       this->mark_failed();
       return;
@@ -101,22 +97,16 @@ void SDP3XComponent::dump_config() {
 }
 
 void SDP3XComponent::read_pressure_() {
-  uint8_t data[9];
-  if (this->read(data, 9) != i2c::ERROR_OK) {
+  uint16_t data[3];
+  if (this->read_data(data, 3) != i2c::ERROR_OK) {
     ESP_LOGW(TAG, "Couldn't read SDP3X data!");
     this->status_set_warning();
     return;
   }
 
-  if (!(check_crc_(&data[0], 2, data[2]) && check_crc_(&data[3], 2, data[5]) && check_crc_(&data[6], 2, data[8]))) {
-    ESP_LOGW(TAG, "Invalid SDP3X data!");
-    this->status_set_warning();
-    return;
-  }
-
-  int16_t pressure_raw = encode_uint16(data[0], data[1]);
-  int16_t temperature_raw = encode_uint16(data[3], data[4]);
-  int16_t scale_factor_raw = encode_uint16(data[6], data[7]);
+  int16_t pressure_raw = data[0];
+  int16_t temperature_raw = data[1];
+  int16_t scale_factor_raw = data[2];
   // scale factor is in Pa - convert to hPa
   float pressure = pressure_raw / (scale_factor_raw * 100.0f);
   ESP_LOGV(TAG, "Got raw pressure=%d, raw scale factor =%d, raw temperature=%d ", pressure_raw, scale_factor_raw,
@@ -129,26 +119,5 @@ void SDP3XComponent::read_pressure_() {
 
 float SDP3XComponent::get_setup_priority() const { return setup_priority::DATA; }
 
-// Check CRC function from SDP3X sample code provided by sensirion
-// Returns true if a checksum is OK
-bool SDP3XComponent::check_crc_(const uint8_t data[], uint8_t size, uint8_t checksum) {
-  uint8_t crc = 0xFF;
-
-  // calculates 8-Bit checksum with given polynomial 0x31 (x^8 + x^5 + x^4 + 1)
-  for (int i = 0; i < size; i++) {
-    crc ^= (data[i]);
-    for (uint8_t bit = 8; bit > 0; --bit) {
-      if (crc & 0x80) {
-        crc = (crc << 1) ^ 0x31;
-      } else {
-        crc = (crc << 1);
-      }
-    }
-  }
-
-  // verify checksum
-  return (crc == checksum);
-}
-
 }  // namespace sdp3x
 }  // namespace esphome

esphome/components/sdp3x/sdp3x.h

@@ -2,14 +2,14 @@
 
 #include "esphome/core/component.h"
 #include "esphome/components/sensor/sensor.h"
-#include "esphome/components/i2c/i2c.h"
+#include "esphome/components/sensirion_common/i2c_sensirion.h"
 
 namespace esphome {
 namespace sdp3x {
 
 enum MeasurementMode { MASS_FLOW_AVG, DP_AVG };
 
-class SDP3XComponent : public PollingComponent, public i2c::I2CDevice, public sensor::Sensor {
+class SDP3XComponent : public PollingComponent, public sensirion_common::SensirionI2CDevice, public sensor::Sensor {
  public:
   /// Schedule temperature+pressure readings.
   void update() override;
@@ -23,8 +23,6 @@ class SDP3XComponent : public PollingComponent, public i2c::I2CDevice, public se
  protected:
   /// Internal method to read the pressure from the component after it has been scheduled.
   void read_pressure_();
-
-  bool check_crc_(const uint8_t data[], uint8_t size, uint8_t checksum);
   MeasurementMode measurement_mode_;
 };
 

esphome/components/sdp3x/sensor.py

@@ -1,6 +1,7 @@
 import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.components import i2c, sensor
+from esphome.components import sensirion_common
 from esphome.const import (
     DEVICE_CLASS_PRESSURE,
     STATE_CLASS_MEASUREMENT,
@@ -8,10 +9,13 @@ from esphome.const import (
 )
 
 DEPENDENCIES = ["i2c"]
+AUTO_LOAD = ["sensirion_common"]
 CODEOWNERS = ["@Azimath"]
 
 sdp3x_ns = cg.esphome_ns.namespace("sdp3x")
-SDP3XComponent = sdp3x_ns.class_("SDP3XComponent", cg.PollingComponent, i2c.I2CDevice)
+SDP3XComponent = sdp3x_ns.class_(
+    "SDP3XComponent", cg.PollingComponent, sensirion_common.SensirionI2CDevice
+)
 
 
 MeasurementMode = sdp3x_ns.enum("MeasurementMode")

esphome/components/select/__init__.py

@@ -9,6 +9,10 @@ from esphome.const import (
     CONF_OPTION,
     CONF_TRIGGER_ID,
     CONF_MQTT_ID,
+    CONF_CYCLE,
+    CONF_MODE,
+    CONF_OPERATION,
+    CONF_INDEX,
 )
 from esphome.core import CORE, coroutine_with_priority
 from esphome.cpp_helpers import setup_entity
@@ -22,14 +26,27 @@ SelectPtr = Select.operator("ptr")
 
 # Triggers
 SelectStateTrigger = select_ns.class_(
-    "SelectStateTrigger", automation.Trigger.template(cg.float_)
+    "SelectStateTrigger",
+    automation.Trigger.template(cg.std_string, cg.size_t),
 )
 
 # Actions
 SelectSetAction = select_ns.class_("SelectSetAction", automation.Action)
+SelectSetIndexAction = select_ns.class_("SelectSetIndexAction", automation.Action)
+SelectOperationAction = select_ns.class_("SelectOperationAction", automation.Action)
+
+# Enums
+SelectOperation = select_ns.enum("SelectOperation")
+SELECT_OPERATION_OPTIONS = {
+    "NEXT": SelectOperation.SELECT_OP_NEXT,
+    "PREVIOUS": SelectOperation.SELECT_OP_PREVIOUS,
+    "FIRST": SelectOperation.SELECT_OP_FIRST,
+    "LAST": SelectOperation.SELECT_OP_LAST,
+}
 
 icon = cv.icon
 
+
 SELECT_SCHEMA = cv.ENTITY_BASE_SCHEMA.extend(cv.MQTT_COMMAND_COMPONENT_SCHEMA).extend(
     {
         cv.OnlyWith(CONF_MQTT_ID, "mqtt"): cv.declare_id(mqtt.MQTTSelectComponent),
@@ -50,7 +67,9 @@ async def setup_select_core_(var, config, *, options: List[str]):
 
     for conf in config.get(CONF_ON_VALUE, []):
         trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
-        await automation.build_automation(trigger, [(cg.std_string, "x")], conf)
+        await automation.build_automation(
+            trigger, [(cg.std_string, "x"), (cg.size_t, "i")], conf
+        )
 
     if CONF_MQTT_ID in config:
         mqtt_ = cg.new_Pvariable(config[CONF_MQTT_ID], var)
@@ -76,12 +95,18 @@ async def to_code(config):
     cg.add_global(select_ns.using)
 
 
+OPERATION_BASE_SCHEMA = cv.Schema(
+    {
+        cv.Required(CONF_ID): cv.use_id(Select),
+    }
+)
+
+
 @automation.register_action(
     "select.set",
     SelectSetAction,
-    cv.Schema(
+    OPERATION_BASE_SCHEMA.extend(
         {
-            cv.Required(CONF_ID): cv.use_id(Select),
             cv.Required(CONF_OPTION): cv.templatable(cv.string_strict),
         }
     ),
@@ -92,3 +117,96 @@ async def select_set_to_code(config, action_id, template_arg, args):
     template_ = await cg.templatable(config[CONF_OPTION], args, cg.std_string)
     cg.add(var.set_option(template_))
     return var
+
+
+@automation.register_action(
+    "select.set_index",
+    SelectSetIndexAction,
+    OPERATION_BASE_SCHEMA.extend(
+        {
+            cv.Required(CONF_INDEX): cv.templatable(cv.positive_int),
+        }
+    ),
+)
+async def select_set_index_to_code(config, action_id, template_arg, args):
+    paren = await cg.get_variable(config[CONF_ID])
+    var = cg.new_Pvariable(action_id, template_arg, paren)
+    template_ = await cg.templatable(config[CONF_INDEX], args, cg.size_t)
+    cg.add(var.set_index(template_))
+    return var
+
+
+@automation.register_action(
+    "select.operation",
+    SelectOperationAction,
+    OPERATION_BASE_SCHEMA.extend(
+        {
+            cv.Required(CONF_OPERATION): cv.templatable(
+                cv.enum(SELECT_OPERATION_OPTIONS, upper=True)
+            ),
+            cv.Optional(CONF_CYCLE, default=True): cv.templatable(cv.boolean),
+        }
+    ),
+)
+@automation.register_action(
+    "select.next",
+    SelectOperationAction,
+    automation.maybe_simple_id(
+        OPERATION_BASE_SCHEMA.extend(
+            {
+                cv.Optional(CONF_MODE, default="NEXT"): cv.one_of("NEXT", upper=True),
+                cv.Optional(CONF_CYCLE, default=True): cv.boolean,
+            }
+        )
+    ),
+)
+@automation.register_action(
+    "select.previous",
+    SelectOperationAction,
+    automation.maybe_simple_id(
+        OPERATION_BASE_SCHEMA.extend(
+            {
+                cv.Optional(CONF_MODE, default="PREVIOUS"): cv.one_of(
+                    "PREVIOUS", upper=True
+                ),
+                cv.Optional(CONF_CYCLE, default=True): cv.boolean,
+            }
+        )
+    ),
+)
+@automation.register_action(
+    "select.first",
+    SelectOperationAction,
+    automation.maybe_simple_id(
+        OPERATION_BASE_SCHEMA.extend(
+            {
+                cv.Optional(CONF_MODE, default="FIRST"): cv.one_of("FIRST", upper=True),
+            }
+        )
+    ),
+)
+@automation.register_action(
+    "select.last",
+    SelectOperationAction,
+    automation.maybe_simple_id(
+        OPERATION_BASE_SCHEMA.extend(
+            {
+                cv.Optional(CONF_MODE, default="LAST"): cv.one_of("LAST", upper=True),
+            }
+        )
+    ),
+)
+async def select_operation_to_code(config, action_id, template_arg, args):
+    paren = await cg.get_variable(config[CONF_ID])
+    var = cg.new_Pvariable(action_id, template_arg, paren)
+    if CONF_OPERATION in config:
+        op_ = await cg.templatable(config[CONF_OPERATION], args, SelectOperation)
+        cg.add(var.set_operation(op_))
+        if CONF_CYCLE in config:
+            cycle_ = await cg.templatable(config[CONF_CYCLE], args, bool)
+            cg.add(var.set_cycle(cycle_))
+    if CONF_MODE in config:
+        cg.add(var.set_operation(SELECT_OPERATION_OPTIONS[config[CONF_MODE]]))
+        if CONF_CYCLE in config:
+            cg.add(var.set_cycle(config[CONF_CYCLE]))
+    return var

esphome/components/select/automation.h

@@ -7,16 +7,16 @@
 namespace esphome {
 namespace select {
 
-class SelectStateTrigger : public Trigger<std::string> {
+class SelectStateTrigger : public Trigger<std::string, size_t> {
  public:
   explicit SelectStateTrigger(Select *parent) {
-    parent->add_on_state_callback([this](const std::string &value) { this->trigger(value); });
+    parent->add_on_state_callback([this](const std::string &value, size_t index) { this->trigger(value, index); });
   }
 };
 
 template<typename... Ts> class SelectSetAction : public Action<Ts...> {
  public:
-  SelectSetAction(Select *select) : select_(select) {}
+  explicit SelectSetAction(Select *select) : select_(select) {}
   TEMPLATABLE_VALUE(std::string, option)
 
   void play(Ts... x) override {
@@ -29,5 +29,39 @@ template<typename... Ts> class SelectSetAction : public Action<Ts...> {
   Select *select_;
 };
 
+template<typename... Ts> class SelectSetIndexAction : public Action<Ts...> {
+ public:
+  explicit SelectSetIndexAction(Select *select) : select_(select) {}
+  TEMPLATABLE_VALUE(size_t, index)
+
+  void play(Ts... x) override {
+    auto call = this->select_->make_call();
+    call.set_index(this->index_.value(x...));
+    call.perform();
+  }
+
+ protected:
+  Select *select_;
+};
+
+template<typename... Ts> class SelectOperationAction : public Action<Ts...> {
+ public:
+  explicit SelectOperationAction(Select *select) : select_(select) {}
+  TEMPLATABLE_VALUE(bool, cycle)
+  TEMPLATABLE_VALUE(SelectOperation, operation)
+
+  void play(Ts... x) override {
+    auto call = this->select_->make_call();
+    call.with_operation(this->operation_.value(x...));
+    if (this->cycle_.has_value()) {
+      call.with_cycle(this->cycle_.value(x...));
+    }
+    call.perform();
+  }
+
+ protected:
+  Select *select_;
+};
+
 }  // namespace select
 }  // namespace esphome

esphome/components/select/select.cpp

@@ -6,37 +6,58 @@ namespace select {
 
 static const char *const TAG = "select";
 
-void SelectCall::perform() {
-  ESP_LOGD(TAG, "'%s' - Setting", this->parent_->get_name().c_str());
-  if (!this->option_.has_value()) {
-    ESP_LOGW(TAG, "No value set for SelectCall");
-    return;
-  }
-
-  const auto &traits = this->parent_->traits;
-  auto value = *this->option_;
-  auto options = traits.get_options();
-
-  if (std::find(options.begin(), options.end(), value) == options.end()) {
-    ESP_LOGW(TAG, "  Option %s is not a valid option.", value.c_str());
-    return;
-  }
-
-  ESP_LOGD(TAG, "  Option: %s", (*this->option_).c_str());
-  this->parent_->control(*this->option_);
-}
-
 void Select::publish_state(const std::string &state) {
-  this->has_state_ = true;
-  this->state = state;
-  ESP_LOGD(TAG, "'%s': Sending state %s", this->get_name().c_str(), state.c_str());
-  this->state_callback_.call(state);
+  auto index = this->index_of(state);
+  const auto *name = this->get_name().c_str();
+  if (index.has_value()) {
+    this->has_state_ = true;
+    this->state = state;
+    ESP_LOGD(TAG, "'%s': Sending state %s (index %d)", name, state.c_str(), index.value());
+    this->state_callback_.call(state, index.value());
+  } else {
+    ESP_LOGE(TAG, "'%s': invalid state for publish_state(): %s", name, state.c_str());
+  }
 }
 
-void Select::add_on_state_callback(std::function<void(std::string)> &&callback) {
+void Select::add_on_state_callback(std::function<void(std::string, size_t)> &&callback) {
   this->state_callback_.add(std::move(callback));
 }
 
+bool Select::has_option(const std::string &option) const { return this->index_of(option).has_value(); }
+
+bool Select::has_index(size_t index) const { return index < this->size(); }
+
+size_t Select::size() const {
+  auto options = traits.get_options();
+  return options.size();
+}
+
+optional<size_t> Select::index_of(const std::string &option) const {
+  auto options = traits.get_options();
+  auto it = std::find(options.begin(), options.end(), option);
+  if (it == options.end()) {
+    return {};
+  }
+  return std::distance(options.begin(), it);
+}
+
+optional<size_t> Select::active_index() const {
+  if (this->has_state()) {
+    return this->index_of(this->state);
+  } else {
+    return {};
+  }
+}
+
+optional<std::string> Select::at(size_t index) const {
+  if (this->has_index(index)) {
+    auto options = traits.get_options();
+    return options.at(index);
+  } else {
+    return {};
+  }
+}
+
 uint32_t Select::hash_base() { return 2812997003UL; }
 
 }  // namespace select

esphome/components/select/select.h

@@ -1,10 +1,10 @@
 #pragma once
 
-#include <set>
-#include <utility>
 #include "esphome/core/component.h"
 #include "esphome/core/entity_base.h"
 #include "esphome/core/helpers.h"
+#include "select_call.h"
+#include "select_traits.h"
 
 namespace esphome {
 namespace select {
@@ -17,33 +17,6 @@ namespace select {
     } \
   }
 
-class Select;
-
-class SelectCall {
- public:
-  explicit SelectCall(Select *parent) : parent_(parent) {}
-  void perform();
-
-  SelectCall &set_option(const std::string &option) {
-    option_ = option;
-    return *this;
-  }
-  const optional<std::string> &get_option() const { return option_; }
-
- protected:
-  Select *const parent_;
-  optional<std::string> option_;
-};
-
-class SelectTraits {
- public:
-  void set_options(std::vector<std::string> options) { this->options_ = std::move(options); }
-  std::vector<std::string> get_options() const { return this->options_; }
-
- protected:
-  std::vector<std::string> options_;
-};
-
 /** Base-class for all selects.
  *
  * A select can use publish_state to send out a new value.
@@ -51,19 +24,36 @@ class SelectTraits {
 class Select : public EntityBase {
  public:
   std::string state;
+  SelectTraits traits;
 
   void publish_state(const std::string &state);
 
-  SelectCall make_call() { return SelectCall(this); }
-  void set(const std::string &value) { make_call().set_option(value).perform(); }
-
-  void add_on_state_callback(std::function<void(std::string)> &&callback);
-
-  SelectTraits traits;
-
-  /// Return whether this select has gotten a full state yet.
+  /// Return whether this select component has gotten a full state yet.
   bool has_state() const { return has_state_; }
 
+  /// Instantiate a SelectCall object to modify this select component's state.
+  SelectCall make_call() { return SelectCall(this); }
+
+  /// Return whether this select component contains the provided option.
+  bool has_option(const std::string &option) const;
+
+  /// Return whether this select component contains the provided index offset.
+  bool has_index(size_t index) const;
+
+  /// Return the number of options in this select component.
+  size_t size() const;
+
+  /// Find the (optional) index offset of the provided option value.
+  optional<size_t> index_of(const std::string &option) const;
+
+  /// Return the (optional) index offset of the currently active option.
+  optional<size_t> active_index() const;
+
+  /// Return the (optional) option value at the provided index offset.
+  optional<std::string> at(size_t index) const;
+
+  void add_on_state_callback(std::function<void(std::string, size_t)> &&callback);
+
  protected:
   friend class SelectCall;
 
@@ -77,7 +67,7 @@ class Select : public EntityBase {
 
   uint32_t hash_base() override;
 
-  CallbackManager<void(std::string)> state_callback_;
+  CallbackManager<void(std::string, size_t)> state_callback_;
   bool has_state_{false};
 };
 

esphome/components/select/select_call.cpp

@@ -0,0 +1,120 @@
+#include "select_call.h"
+#include "select.h"
+#include "esphome/core/log.h"
+
+namespace esphome {
+namespace select {
+
+static const char *const TAG = "select";
+
+SelectCall &SelectCall::set_option(const std::string &option) {
+  return with_operation(SELECT_OP_SET).with_option(option);
+}
+
+SelectCall &SelectCall::set_index(size_t index) { return with_operation(SELECT_OP_SET_INDEX).with_index(index); }
+
+SelectCall &SelectCall::select_next(bool cycle) { return with_operation(SELECT_OP_NEXT).with_cycle(cycle); }
+
+SelectCall &SelectCall::select_previous(bool cycle) { return with_operation(SELECT_OP_PREVIOUS).with_cycle(cycle); }
+
+SelectCall &SelectCall::select_first() { return with_operation(SELECT_OP_FIRST); }
+
+SelectCall &SelectCall::select_last() { return with_operation(SELECT_OP_LAST); }
+
+SelectCall &SelectCall::with_operation(SelectOperation operation) {
+  this->operation_ = operation;
+  return *this;
+}
+
+SelectCall &SelectCall::with_cycle(bool cycle) {
+  this->cycle_ = cycle;
+  return *this;
+}
+
+SelectCall &SelectCall::with_option(const std::string &option) {
+  this->option_ = option;
+  return *this;
+}
+
+SelectCall &SelectCall::with_index(size_t index) {
+  this->index_ = index;
+  return *this;
+}
+
+void SelectCall::perform() {
+  auto *parent = this->parent_;
+  const auto *name = parent->get_name().c_str();
+  const auto &traits = parent->traits;
+  auto options = traits.get_options();
+
+  if (this->operation_ == SELECT_OP_NONE) {
+    ESP_LOGW(TAG, "'%s' - SelectCall performed without selecting an operation", name);
+    return;
+  }
+  if (options.empty()) {
+    ESP_LOGW(TAG, "'%s' - Cannot perform SelectCall, select has no options", name);
+    return;
+  }
+
+  std::string target_value;
+
+  if (this->operation_ == SELECT_OP_SET) {
+    ESP_LOGD(TAG, "'%s' - Setting", name);
+    if (!this->option_.has_value()) {
+      ESP_LOGW(TAG, "'%s' - No option value set for SelectCall", name);
+      return;
+    }
+    target_value = this->option_.value();
+  } else if (this->operation_ == SELECT_OP_SET_INDEX) {
+    if (!this->index_.has_value()) {
+      ESP_LOGW(TAG, "'%s' - No index value set for SelectCall", name);
+      return;
+    }
+    if (this->index_.value() >= options.size()) {
+      ESP_LOGW(TAG, "'%s' - Index value %d out of bounds", name, this->index_.value());
+      return;
+    }
+    target_value = options[this->index_.value()];
+  } else if (this->operation_ == SELECT_OP_FIRST) {
+    target_value = options.front();
+  } else if (this->operation_ == SELECT_OP_LAST) {
+    target_value = options.back();
+  } else if (this->operation_ == SELECT_OP_NEXT || this->operation_ == SELECT_OP_PREVIOUS) {
+    auto cycle = this->cycle_;
+    ESP_LOGD(TAG, "'%s' - Selecting %s, with%s cycling", name, this->operation_ == SELECT_OP_NEXT ? "next" : "previous",
+             cycle ? "" : "out");
+    if (!parent->has_state()) {
+      target_value = this->operation_ == SELECT_OP_NEXT ? options.front() : options.back();
+    } else {
+      auto index = parent->index_of(parent->state);
+      if (index.has_value()) {
+        auto size = options.size();
+        if (cycle) {
+          auto use_index = (size + index.value() + (this->operation_ == SELECT_OP_NEXT ? +1 : -1)) % size;
+          target_value = options[use_index];
+        } else {
+          if (this->operation_ == SELECT_OP_PREVIOUS && index.value() > 0) {
+            target_value = options[index.value() - 1];
+          } else if (this->operation_ == SELECT_OP_NEXT && index.value() < options.size() - 1) {
+            target_value = options[index.value() + 1];
+          } else {
+            return;
+          }
+        }
+      } else {
+        target_value = this->operation_ == SELECT_OP_NEXT ? options.front() : options.back();
+      }
+    }
+  }
+
+  if (std::find(options.begin(), options.end(), target_value) == options.end()) {
+    ESP_LOGW(TAG, "'%s' - Option %s is not a valid option", name, target_value.c_str());
+    return;
+  }
+
+  ESP_LOGD(TAG, "'%s' - Set selected option to: %s", name, target_value.c_str());
+  parent->control(target_value);
+}
+
+}  // namespace select
+}  // namespace esphome

esphome/components/select/select_call.h

@@ -0,0 +1,47 @@
+#pragma once
+
+#include "esphome/core/helpers.h"
+
+namespace esphome {
+namespace select {
+
+class Select;
+
+enum SelectOperation {
+  SELECT_OP_NONE,
+  SELECT_OP_SET,
+  SELECT_OP_SET_INDEX,
+  SELECT_OP_NEXT,
+  SELECT_OP_PREVIOUS,
+  SELECT_OP_FIRST,
+  SELECT_OP_LAST
+};
+
+class SelectCall {
+ public:
+  explicit SelectCall(Select *parent) : parent_(parent) {}
+  void perform();
+
+  SelectCall &set_option(const std::string &option);
+  SelectCall &set_index(size_t index);
+
+  SelectCall &select_next(bool cycle);
+  SelectCall &select_previous(bool cycle);
+  SelectCall &select_first();
+  SelectCall &select_last();
+
+  SelectCall &with_operation(SelectOperation operation);
+  SelectCall &with_cycle(bool cycle);
+  SelectCall &with_option(const std::string &option);
+  SelectCall &with_index(size_t index);
+
+ protected:
+  Select *const parent_;
+  optional<std::string> option_;
+  optional<size_t> index_;
+  SelectOperation operation_{SELECT_OP_NONE};
+  bool cycle_;
+};
+
+}  // namespace select
+}  // namespace esphome

esphome/components/select/select_traits.cpp

@@ -0,0 +1,11 @@
+#include "select_traits.h"
+
+namespace esphome {
+namespace select {
+
+void SelectTraits::set_options(std::vector<std::string> options) { this->options_ = std::move(options); }
+
+std::vector<std::string> SelectTraits::get_options() const { return this->options_; }
+
+}  // namespace select
+}  // namespace esphome

esphome/components/select/select_traits.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <vector>
+#include <string>
+
+namespace esphome {
+namespace select {
+
+class SelectTraits {
+ public:
+  void set_options(std::vector<std::string> options);
+  std::vector<std::string> get_options() const;
+
+ protected:
+  std::vector<std::string> options_;
+};
+
+}  // namespace select
+}  // namespace esphome

esphome/components/sen5x/automation.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/core/automation.h"
+#include "sen5x.h"
+
+namespace esphome {
+namespace sen5x {
+
+template<typename... Ts> class StartFanAction : public Action<Ts...> {
+ public:
+  explicit StartFanAction(SEN5XComponent *sen5x) : sen5x_(sen5x) {}
+
+  void play(Ts... x) override { this->sen5x_->start_fan_cleaning(); }
+
+ protected:
+  SEN5XComponent *sen5x_;
+};
+
+}  // namespace sen5x
+}  // namespace esphome

esphome/components/sen5x/sen5x.cpp

@@ -0,0 +1,413 @@
+#include "sen5x.h"
+#include "esphome/core/hal.h"
+#include "esphome/core/log.h"
+
+namespace esphome {
+namespace sen5x {
+
+static const char *const TAG = "sen5x";
+
+static const uint16_t SEN5X_CMD_AUTO_CLEANING_INTERVAL = 0x8004;
+static const uint16_t SEN5X_CMD_GET_DATA_READY_STATUS = 0x0202;
+static const uint16_t SEN5X_CMD_GET_FIRMWARE_VERSION = 0xD100;
+static const uint16_t SEN5X_CMD_GET_PRODUCT_NAME = 0xD014;
+static const uint16_t SEN5X_CMD_GET_SERIAL_NUMBER = 0xD033;
+static const uint16_t SEN5X_CMD_NOX_ALGORITHM_TUNING = 0x60E1;
+static const uint16_t SEN5X_CMD_READ_MEASUREMENT = 0x03C4;
+static const uint16_t SEN5X_CMD_RHT_ACCELERATION_MODE = 0x60F7;
+static const uint16_t SEN5X_CMD_START_CLEANING_FAN = 0x5607;
+static const uint16_t SEN5X_CMD_START_MEASUREMENTS = 0x0021;
+static const uint16_t SEN5X_CMD_START_MEASUREMENTS_RHT_ONLY = 0x0037;
+static const uint16_t SEN5X_CMD_STOP_MEASUREMENTS = 0x3f86;
+static const uint16_t SEN5X_CMD_TEMPERATURE_COMPENSATION = 0x60B2;
+static const uint16_t SEN5X_CMD_VOC_ALGORITHM_STATE = 0x6181;
+static const uint16_t SEN5X_CMD_VOC_ALGORITHM_TUNING = 0x60D0;
+
+void SEN5XComponent::setup() {
+  ESP_LOGCONFIG(TAG, "Setting up sen5x...");
+
+  // the sensor needs 1000 ms to enter the idle state
+  this->set_timeout(1000, [this]() {
+    // Check if measurement is ready before reading the value
+    if (!this->write_command(SEN5X_CMD_GET_DATA_READY_STATUS)) {
+      ESP_LOGE(TAG, "Failed to write data ready status command");
+      this->mark_failed();
+      return;
+    }
+
+    uint16_t raw_read_status;
+    if (!this->read_data(raw_read_status)) {
+      ESP_LOGE(TAG, "Failed to read data ready status");
+      this->mark_failed();
+      return;
+    }
+
+    uint32_t stop_measurement_delay = 0;
+    // In order to query the device periodic measurement must be ceased
+    if (raw_read_status) {
+      ESP_LOGD(TAG, "Sensor has data available, stopping periodic measurement");
+      if (!this->write_command(SEN5X_CMD_STOP_MEASUREMENTS)) {
+        ESP_LOGE(TAG, "Failed to stop measurements");
+        this->mark_failed();
+        return;
+      }
+      // According to the SEN5x datasheet the sensor will only respond to other commands after waiting 200 ms after
+      // issuing the stop_periodic_measurement command
+      stop_measurement_delay = 200;
+    }
+    this->set_timeout(stop_measurement_delay, [this]() {
+      uint16_t raw_serial_number[3];
+      if (!this->get_register(SEN5X_CMD_GET_SERIAL_NUMBER, raw_serial_number, 3, 20)) {
+        ESP_LOGE(TAG, "Failed to read serial number");
+        this->error_code_ = SERIAL_NUMBER_IDENTIFICATION_FAILED;
+        this->mark_failed();
+        return;
+      }
+      this->serial_number_[0] = static_cast<bool>(uint16_t(raw_serial_number[0]) & 0xFF);
+      this->serial_number_[1] = static_cast<uint16_t>(raw_serial_number[0] & 0xFF);
+      this->serial_number_[2] = static_cast<uint16_t>(raw_serial_number[1] >> 8);
+      ESP_LOGD(TAG, "Serial number %02d.%02d.%02d", serial_number_[0], serial_number_[1], serial_number_[2]);
+
+      uint16_t raw_product_name[16];
+      if (!this->get_register(SEN5X_CMD_GET_PRODUCT_NAME, raw_product_name, 16, 20)) {
+        ESP_LOGE(TAG, "Failed to read product name");
+        this->error_code_ = PRODUCT_NAME_FAILED;
+        this->mark_failed();
+        return;
+      }
+      // 2 ASCII bytes are encoded in an int
+      const uint16_t *current_int = raw_product_name;
+      char current_char;
+      uint8_t max = 16;
+      do {
+        // first char
+        current_char = *current_int >> 8;
+        if (current_char) {
+          product_name_.push_back(current_char);
+          // second char
+          current_char = *current_int & 0xFF;
+          if (current_char)
+            product_name_.push_back(current_char);
+        }
+        current_int++;
+      } while (current_char && --max);
+
+      Sen5xType sen5x_type = UNKNOWN;
+      if (product_name_ == "SEN50") {
+        sen5x_type = SEN50;
+      } else {
+        if (product_name_ == "SEN54") {
+          sen5x_type = SEN54;
+        } else {
+          if (product_name_ == "SEN55") {
+            sen5x_type = SEN55;
+          }
+        }
+        ESP_LOGD(TAG, "Productname %s", product_name_.c_str());
+      }
+      if (this->humidity_sensor_ && sen5x_type == SEN50) {
+        ESP_LOGE(TAG, "For Relative humidity a SEN54 OR SEN55 is required. You are using a <%s> sensor",
+                 this->product_name_.c_str());
+        this->humidity_sensor_ = nullptr;  // mark as not used
+      }
+      if (this->temperature_sensor_ && sen5x_type == SEN50) {
+        ESP_LOGE(TAG, "For Temperature a SEN54 OR SEN55 is required. You are using a <%s> sensor",
+                 this->product_name_.c_str());
+        this->temperature_sensor_ = nullptr;  // mark as not used
+      }
+      if (this->voc_sensor_ && sen5x_type == SEN50) {
+        ESP_LOGE(TAG, "For VOC a SEN54 OR SEN55 is required. You are using a <%s> sensor", this->product_name_.c_str());
+        this->voc_sensor_ = nullptr;  // mark as not used
+      }
+      if (this->nox_sensor_ && sen5x_type != SEN55) {
+        ESP_LOGE(TAG, "For NOx a SEN55 is required. You are using a <%s> sensor", this->product_name_.c_str());
+        this->nox_sensor_ = nullptr;  // mark as not used
+      }
+
+      if (!this->get_register(SEN5X_CMD_GET_FIRMWARE_VERSION, this->firmware_version_, 20)) {
+        ESP_LOGE(TAG, "Failed to read firmware version");
+        this->error_code_ = FIRMWARE_FAILED;
+        this->mark_failed();
+        return;
+      }
+      this->firmware_version_ >>= 8;
+      ESP_LOGD(TAG, "Firmware version %d", this->firmware_version_);
+
+      if (this->voc_sensor_ && this->store_baseline_) {
+        // Hash with compilation time
+        // This ensures the baseline storage is cleared after OTA
+        uint32_t hash = fnv1_hash(App.get_compilation_time());
+        this->pref_ = global_preferences->make_preference<Sen5xBaselines>(hash, true);
+
+        if (this->pref_.load(&this->voc_baselines_storage_)) {
+          ESP_LOGI(TAG, "Loaded VOC baseline state0: 0x%04X, state1: 0x%04X", this->voc_baselines_storage_.state0,
+                   voc_baselines_storage_.state1);
+        }
+
+        // Initialize storage timestamp
+        this->seconds_since_last_store_ = 0;
+
+        if (this->voc_baselines_storage_.state0 > 0 && this->voc_baselines_storage_.state1 > 0) {
+          ESP_LOGI(TAG, "Setting VOC baseline from save state0: 0x%04X, state1: 0x%04X",
+                   this->voc_baselines_storage_.state0, voc_baselines_storage_.state1);
+          uint16_t states[4];
+
+          states[0] = voc_baselines_storage_.state0 >> 16;
+          states[1] = voc_baselines_storage_.state0 & 0xFFFF;
+          states[2] = voc_baselines_storage_.state1 >> 16;
+          states[3] = voc_baselines_storage_.state1 & 0xFFFF;
+
+          if (!this->write_command(SEN5X_CMD_VOC_ALGORITHM_STATE, states, 4)) {
+            ESP_LOGE(TAG, "Failed to set VOC baseline from saved state");
+          }
+        }
+      }
+      bool result;
+      if (this->auto_cleaning_interval_.has_value()) {
+        // override default value
+        result = write_command(SEN5X_CMD_AUTO_CLEANING_INTERVAL, this->auto_cleaning_interval_.value());
+      } else {
+        result = write_command(SEN5X_CMD_AUTO_CLEANING_INTERVAL);
+      }
+      if (result) {
+        delay(20);
+        uint16_t secs[2];
+        if (this->read_data(secs, 2)) {
+          auto_cleaning_interval_ = secs[0] << 16 | secs[1];
+        }
+      }
+      if (acceleration_mode_.has_value()) {
+        result = this->write_command(SEN5X_CMD_RHT_ACCELERATION_MODE, acceleration_mode_.value());
+      } else {
+        result = this->write_command(SEN5X_CMD_RHT_ACCELERATION_MODE);
+      }
+      if (!result) {
+        ESP_LOGE(TAG, "Failed to set rh/t acceleration mode");
+        this->error_code_ = COMMUNICATION_FAILED;
+        this->mark_failed();
+        return;
+      }
+      delay(20);
+      if (!acceleration_mode_.has_value()) {
+        uint16_t mode;
+        if (this->read_data(mode)) {
+          this->acceleration_mode_ = RhtAccelerationMode(mode);
+        } else {
+          ESP_LOGE(TAG, "Failed to read RHT Acceleration mode");
+        }
+      }
+      if (this->voc_tuning_params_.has_value())
+        this->write_tuning_parameters_(SEN5X_CMD_VOC_ALGORITHM_TUNING, this->voc_tuning_params_.value());
+      if (this->nox_tuning_params_.has_value())
+        this->write_tuning_parameters_(SEN5X_CMD_NOX_ALGORITHM_TUNING, this->nox_tuning_params_.value());
+
+      if (this->temperature_compensation_.has_value())
+        this->write_temperature_compensation_(this->temperature_compensation_.value());
+
+      // Finally start sensor measurements
+      auto cmd = SEN5X_CMD_START_MEASUREMENTS_RHT_ONLY;
+      if (this->pm_1_0_sensor_ || this->pm_2_5_sensor_ || this->pm_4_0_sensor_ || this->pm_10_0_sensor_) {
+        // if any of the gas sensors are active we need a full measurement
+        cmd = SEN5X_CMD_START_MEASUREMENTS;
+      }
+
+      if (!this->write_command(cmd)) {
+        ESP_LOGE(TAG, "Error starting continuous measurements.");
+        this->error_code_ = MEASUREMENT_INIT_FAILED;
+        this->mark_failed();
+        return;
+      }
+      initialized_ = true;
+      ESP_LOGD(TAG, "Sensor initialized");
+    });
+  });
+}
+
+void SEN5XComponent::dump_config() {
+  ESP_LOGCONFIG(TAG, "sen5x:");
+  LOG_I2C_DEVICE(this);
+  if (this->is_failed()) {
+    switch (this->error_code_) {
+      case COMMUNICATION_FAILED:
+        ESP_LOGW(TAG, "Communication failed! Is the sensor connected?");
+        break;
+      case MEASUREMENT_INIT_FAILED:
+        ESP_LOGW(TAG, "Measurement Initialization failed!");
+        break;
+      case SERIAL_NUMBER_IDENTIFICATION_FAILED:
+        ESP_LOGW(TAG, "Unable to read sensor serial id");
+        break;
+      case PRODUCT_NAME_FAILED:
+        ESP_LOGW(TAG, "Unable to read product name");
+        break;
+      case FIRMWARE_FAILED:
+        ESP_LOGW(TAG, "Unable to read sensor firmware version");
+        break;
+      default:
+        ESP_LOGW(TAG, "Unknown setup error!");
+        break;
+    }
+  }
+  ESP_LOGCONFIG(TAG, "  Productname: %s", this->product_name_.c_str());
+  ESP_LOGCONFIG(TAG, "  Firmware version: %d", this->firmware_version_);
+  ESP_LOGCONFIG(TAG, "  Serial number %02d.%02d.%02d", serial_number_[0], serial_number_[1], serial_number_[2]);
+  if (this->auto_cleaning_interval_.has_value()) {
+    ESP_LOGCONFIG(TAG, "  Auto auto cleaning interval %d seconds", auto_cleaning_interval_.value());
+  }
+  if (this->acceleration_mode_.has_value()) {
+    switch (this->acceleration_mode_.value()) {
+      case LOW_ACCELERATION:
+        ESP_LOGCONFIG(TAG, "  Low RH/T acceleration mode");
+        break;
+      case MEDIUM_ACCELERATION:
+        ESP_LOGCONFIG(TAG, "  Medium RH/T accelertion mode");
+        break;
+      case HIGH_ACCELERATION:
+        ESP_LOGCONFIG(TAG, "  High RH/T accelertion mode");
+        break;
+    }
+  }
+  LOG_UPDATE_INTERVAL(this);
+  LOG_SENSOR("  ", "PM  1.0", this->pm_1_0_sensor_);
+  LOG_SENSOR("  ", "PM  2.5", this->pm_2_5_sensor_);
+  LOG_SENSOR("  ", "PM  4.0", this->pm_4_0_sensor_);
+  LOG_SENSOR("  ", "PM 10.0", this->pm_10_0_sensor_);
+  LOG_SENSOR("  ", "Temperature", this->temperature_sensor_);
+  LOG_SENSOR("  ", "Humidity", this->humidity_sensor_);
+  LOG_SENSOR("  ", "VOC", this->voc_sensor_);  // SEN54 and SEN55 only
+  LOG_SENSOR("  ", "NOx", this->nox_sensor_);  // SEN55 only
+}
+
+void SEN5XComponent::update() {
+  if (!initialized_) {
+    return;
+  }
+
+  // Store baselines after defined interval or if the difference between current and stored baseline becomes too
+  // much
+  if (this->store_baseline_ && this->seconds_since_last_store_ > SHORTEST_BASELINE_STORE_INTERVAL) {
+    if (this->write_command(SEN5X_CMD_VOC_ALGORITHM_STATE)) {
+      // run it a bit later to avoid adding a delay here
+      this->set_timeout(550, [this]() {
+        uint16_t states[4];
+        if (this->read_data(states, 4)) {
+          uint32_t state0 = states[0] << 16 | states[1];
+          uint32_t state1 = states[2] << 16 | states[3];
+          if ((uint32_t) std::abs(static_cast<int32_t>(this->voc_baselines_storage_.state0 - state0)) >
+                  MAXIMUM_STORAGE_DIFF ||
+              (uint32_t) std::abs(static_cast<int32_t>(this->voc_baselines_storage_.state1 - state1)) >
+                  MAXIMUM_STORAGE_DIFF) {
+            this->seconds_since_last_store_ = 0;
+            this->voc_baselines_storage_.state0 = state0;
+            this->voc_baselines_storage_.state1 = state1;
+
+            if (this->pref_.save(&this->voc_baselines_storage_)) {
+              ESP_LOGI(TAG, "Stored VOC baseline state0: 0x%04X ,state1: 0x%04X", this->voc_baselines_storage_.state0,
+                       voc_baselines_storage_.state1);
+            } else {
+              ESP_LOGW(TAG, "Could not store VOC baselines");
+            }
+          }
+        }
+      });
+    }
+  }
+
+  if (!this->write_command(SEN5X_CMD_READ_MEASUREMENT)) {
+    this->status_set_warning();
+    ESP_LOGD(TAG, "write error read measurement (%d)", this->last_error_);
+    return;
+  }
+  this->set_timeout(20, [this]() {
+    uint16_t measurements[8];
+
+    if (!this->read_data(measurements, 8)) {
+      this->status_set_warning();
+      ESP_LOGD(TAG, "read data error (%d)", this->last_error_);
+      return;
+    }
+    float pm_1_0 = measurements[0] / 10.0;
+    if (measurements[0] == 0xFFFF)
+      pm_1_0 = NAN;
+    float pm_2_5 = measurements[1] / 10.0;
+    if (measurements[1] == 0xFFFF)
+      pm_2_5 = NAN;
+    float pm_4_0 = measurements[2] / 10.0;
+    if (measurements[2] == 0xFFFF)
+      pm_4_0 = NAN;
+    float pm_10_0 = measurements[3] / 10.0;
+    if (measurements[3] == 0xFFFF)
+      pm_10_0 = NAN;
+    float humidity = measurements[4] / 100.0;
+    if (measurements[4] == 0xFFFF)
+      humidity = NAN;
+    float temperature = measurements[5] / 200.0;
+    if (measurements[5] == 0xFFFF)
+      temperature = NAN;
+    float voc = measurements[6] / 10.0;
+    if (measurements[6] == 0xFFFF)
+      voc = NAN;
+    float nox = measurements[7] / 10.0;
+    if (measurements[7] == 0xFFFF)
+      nox = NAN;
+
+    if (this->pm_1_0_sensor_ != nullptr)
+      this->pm_1_0_sensor_->publish_state(pm_1_0);
+    if (this->pm_2_5_sensor_ != nullptr)
+      this->pm_2_5_sensor_->publish_state(pm_2_5);
+    if (this->pm_4_0_sensor_ != nullptr)
+      this->pm_4_0_sensor_->publish_state(pm_4_0);
+    if (this->pm_10_0_sensor_ != nullptr)
+      this->pm_10_0_sensor_->publish_state(pm_10_0);
+    if (this->temperature_sensor_ != nullptr)
+      this->temperature_sensor_->publish_state(temperature);
+    if (this->humidity_sensor_ != nullptr)
+      this->humidity_sensor_->publish_state(humidity);
+    if (this->voc_sensor_ != nullptr)
+      this->voc_sensor_->publish_state(voc);
+    if (this->nox_sensor_ != nullptr)
+      this->nox_sensor_->publish_state(nox);
+    this->status_clear_warning();
+  });
+}
+
+bool SEN5XComponent::write_tuning_parameters_(uint16_t i2c_command, const GasTuning &tuning) {
+  uint16_t params[6];
+  params[0] = tuning.index_offset;
+  params[1] = tuning.learning_time_offset_hours;
+  params[2] = tuning.learning_time_gain_hours;
+  params[3] = tuning.gating_max_duration_minutes;
+  params[4] = tuning.std_initial;
+  params[5] = tuning.gain_factor;
+  auto result = write_command(i2c_command, params, 6);
+  if (!result) {
+    ESP_LOGE(TAG, "set tuning parameters failed. i2c command=%0xX, err=%d", i2c_command, this->last_error_);
+  }
+  return result;
+}
+
+bool SEN5XComponent::write_temperature_compensation_(const TemperatureCompensation &compensation) {
+  uint16_t params[3];
+  params[0] = compensation.offset;
+  params[1] = compensation.normalized_offset_slope;
+  params[2] = compensation.time_constant;
+  if (!write_command(SEN5X_CMD_TEMPERATURE_COMPENSATION, params, 3)) {
+    ESP_LOGE(TAG, "set temperature_compensation failed. Err=%d", this->last_error_);
+    return false;
+  }
+  return true;
+}
+
+bool SEN5XComponent::start_fan_cleaning() {
+  if (!write_command(SEN5X_CMD_START_CLEANING_FAN)) {
+    this->status_set_warning();
+    ESP_LOGE(TAG, "write error start fan (%d)", this->last_error_);
+    return false;
+  } else {
+    ESP_LOGD(TAG, "Fan auto clean started");
+  }
+  return true;
+}
+
+}  // namespace sen5x
+}  // namespace esphome

esphome/components/sen5x/sen5x.h

@@ -0,0 +1,128 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/sensor/sensor.h"
+#include "esphome/components/sensirion_common/i2c_sensirion.h"
+#include "esphome/core/application.h"
+#include "esphome/core/preferences.h"
+
+namespace esphome {
+namespace sen5x {
+
+enum ERRORCODE {
+  COMMUNICATION_FAILED,
+  SERIAL_NUMBER_IDENTIFICATION_FAILED,
+  MEASUREMENT_INIT_FAILED,
+  PRODUCT_NAME_FAILED,
+  FIRMWARE_FAILED,
+  UNKNOWN
+};
+
+// Shortest time interval of 3H for storing baseline values.
+// Prevents wear of the flash because of too many write operations
+const uint32_t SHORTEST_BASELINE_STORE_INTERVAL = 10800;
+// Store anyway if the baseline difference exceeds the max storage diff value
+const uint32_t MAXIMUM_STORAGE_DIFF = 50;
+
+struct Sen5xBaselines {
+  int32_t state0;
+  int32_t state1;
+} PACKED;  // NOLINT
+
+enum RhtAccelerationMode : uint16_t { LOW_ACCELERATION = 0, MEDIUM_ACCELERATION = 1, HIGH_ACCELERATION = 2 };
+
+struct GasTuning {
+  uint16_t index_offset;
+  uint16_t learning_time_offset_hours;
+  uint16_t learning_time_gain_hours;
+  uint16_t gating_max_duration_minutes;
+  uint16_t std_initial;
+  uint16_t gain_factor;
+};
+
+struct TemperatureCompensation {
+  uint16_t offset;
+  uint16_t normalized_offset_slope;
+  uint16_t time_constant;
+};
+
+class SEN5XComponent : public PollingComponent, public sensirion_common::SensirionI2CDevice {
+ public:
+  float get_setup_priority() const override { return setup_priority::DATA; }
+  void setup() override;
+  void dump_config() override;
+  void update() override;
+
+  enum Sen5xType { SEN50, SEN54, SEN55, UNKNOWN };
+
+  void set_pm_1_0_sensor(sensor::Sensor *pm_1_0) { pm_1_0_sensor_ = pm_1_0; }
+  void set_pm_2_5_sensor(sensor::Sensor *pm_2_5) { pm_2_5_sensor_ = pm_2_5; }
+  void set_pm_4_0_sensor(sensor::Sensor *pm_4_0) { pm_4_0_sensor_ = pm_4_0; }
+  void set_pm_10_0_sensor(sensor::Sensor *pm_10_0) { pm_10_0_sensor_ = pm_10_0; }
+
+  void set_voc_sensor(sensor::Sensor *voc_sensor) { voc_sensor_ = voc_sensor; }
+  void set_nox_sensor(sensor::Sensor *nox_sensor) { nox_sensor_ = nox_sensor; }
+  void set_humidity_sensor(sensor::Sensor *humidity_sensor) { humidity_sensor_ = humidity_sensor; }
+  void set_temperature_sensor(sensor::Sensor *temperature_sensor) { temperature_sensor_ = temperature_sensor; }
+  void set_store_baseline(bool store_baseline) { store_baseline_ = store_baseline; }
+  void set_acceleration_mode(RhtAccelerationMode mode) { acceleration_mode_ = mode; }
+  void set_auto_cleaning_interval(uint32_t auto_cleaning_interval) { auto_cleaning_interval_ = auto_cleaning_interval; }
+  void set_voc_algorithm_tuning(uint16_t index_offset, uint16_t learning_time_offset_hours,
+                                uint16_t learning_time_gain_hours, uint16_t gating_max_duration_minutes,
+                                uint16_t std_initial, uint16_t gain_factor) {
+    voc_tuning_params_.value().index_offset = index_offset;
+    voc_tuning_params_.value().learning_time_offset_hours = learning_time_offset_hours;
+    voc_tuning_params_.value().learning_time_gain_hours = learning_time_gain_hours;
+    voc_tuning_params_.value().gating_max_duration_minutes = gating_max_duration_minutes;
+    voc_tuning_params_.value().std_initial = std_initial;
+    voc_tuning_params_.value().gain_factor = gain_factor;
+  }
+  void set_nox_algorithm_tuning(uint16_t index_offset, uint16_t learning_time_offset_hours,
+                                uint16_t learning_time_gain_hours, uint16_t gating_max_duration_minutes,
+                                uint16_t gain_factor) {
+    nox_tuning_params_.value().index_offset = index_offset;
+    nox_tuning_params_.value().learning_time_offset_hours = learning_time_offset_hours;
+    nox_tuning_params_.value().learning_time_gain_hours = learning_time_gain_hours;
+    nox_tuning_params_.value().gating_max_duration_minutes = gating_max_duration_minutes;
+    nox_tuning_params_.value().std_initial = 50;
+    nox_tuning_params_.value().gain_factor = gain_factor;
+  }
+  void set_temperature_compensation(float offset, float normalized_offset_slope, uint16_t time_constant) {
+    temperature_compensation_.value().offset = offset * 200;
+    temperature_compensation_.value().normalized_offset_slope = normalized_offset_slope * 100;
+    temperature_compensation_.value().time_constant = time_constant;
+  }
+  bool start_fan_cleaning();
+
+ protected:
+  bool write_tuning_parameters_(uint16_t i2c_command, const GasTuning &tuning);
+  bool write_temperature_compensation_(const TemperatureCompensation &compensation);
+  ERRORCODE error_code_;
+  bool initialized_{false};
+  sensor::Sensor *pm_1_0_sensor_{nullptr};
+  sensor::Sensor *pm_2_5_sensor_{nullptr};
+  sensor::Sensor *pm_4_0_sensor_{nullptr};
+  sensor::Sensor *pm_10_0_sensor_{nullptr};
+  // SEN54 and SEN55 only
+  sensor::Sensor *temperature_sensor_{nullptr};
+  sensor::Sensor *humidity_sensor_{nullptr};
+  sensor::Sensor *voc_sensor_{nullptr};
+  // SEN55 only
+  sensor::Sensor *nox_sensor_{nullptr};
+
+  std::string product_name_;
+  uint8_t serial_number_[4];
+  uint16_t firmware_version_;
+  Sen5xBaselines voc_baselines_storage_;
+  bool store_baseline_;
+  uint32_t seconds_since_last_store_;
+  ESPPreferenceObject pref_;
+  optional<RhtAccelerationMode> acceleration_mode_;
+  optional<uint32_t> auto_cleaning_interval_;
+  optional<GasTuning> voc_tuning_params_;
+  optional<GasTuning> nox_tuning_params_;
+  optional<TemperatureCompensation> temperature_compensation_;
+};
+
+}  // namespace sen5x
+}  // namespace esphome

esphome/components/sen5x/sensor.py

@@ -0,0 +1,241 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import i2c, sensor, sensirion_common
+from esphome import automation
+from esphome.automation import maybe_simple_id
+
+from esphome.const import (
+    CONF_HUMIDITY,
+    CONF_ID,
+    CONF_OFFSET,
+    CONF_PM_1_0,
+    CONF_PM_10_0,
+    CONF_PM_2_5,
+    CONF_PM_4_0,
+    CONF_STORE_BASELINE,
+    CONF_TEMPERATURE,
+    DEVICE_CLASS_HUMIDITY,
+    DEVICE_CLASS_NITROUS_OXIDE,
+    DEVICE_CLASS_PM1,
+    DEVICE_CLASS_PM10,
+    DEVICE_CLASS_PM25,
+    DEVICE_CLASS_TEMPERATURE,
+    DEVICE_CLASS_VOLATILE_ORGANIC_COMPOUNDS,
+    ICON_CHEMICAL_WEAPON,
+    ICON_RADIATOR,
+    ICON_THERMOMETER,
+    ICON_WATER_PERCENT,
+    STATE_CLASS_MEASUREMENT,
+    UNIT_CELSIUS,
+    UNIT_MICROGRAMS_PER_CUBIC_METER,
+    UNIT_PERCENT,
+)
+
+CODEOWNERS = ["@martgras"]
+DEPENDENCIES = ["i2c"]
+AUTO_LOAD = ["sensirion_common"]
+
+sen5x_ns = cg.esphome_ns.namespace("sen5x")
+SEN5XComponent = sen5x_ns.class_(
+    "SEN5XComponent", cg.PollingComponent, sensirion_common.SensirionI2CDevice
+)
+RhtAccelerationMode = sen5x_ns.enum("RhtAccelerationMode")
+
+CONF_ACCELERATION_MODE = "acceleration_mode"
+CONF_ALGORITHM_TUNING = "algorithm_tuning"
+CONF_AUTO_CLEANING_INTERVAL = "auto_cleaning_interval"
+CONF_GAIN_FACTOR = "gain_factor"
+CONF_GATING_MAX_DURATION_MINUTES = "gating_max_duration_minutes"
+CONF_INDEX_OFFSET = "index_offset"
+CONF_LEARNING_TIME_GAIN_HOURS = "learning_time_gain_hours"
+CONF_LEARNING_TIME_OFFSET_HOURS = "learning_time_offset_hours"
+CONF_NORMALIZED_OFFSET_SLOPE = "normalized_offset_slope"
+CONF_NOX = "nox"
+CONF_STD_INITIAL = "std_initial"
+CONF_TEMPERATURE_COMPENSATION = "temperature_compensation"
+CONF_TIME_CONSTANT = "time_constant"
+CONF_VOC = "voc"
+CONF_VOC_BASELINE = "voc_baseline"
+
+
+# Actions
+StartFanAction = sen5x_ns.class_("StartFanAction", automation.Action)
+
+ACCELERATION_MODES = {
+    "low": RhtAccelerationMode.LOW_ACCELERATION,
+    "medium": RhtAccelerationMode.MEDIUM_ACCELERATION,
+    "high": RhtAccelerationMode.HIGH_ACCELERATION,
+}
+
+GAS_SENSOR = cv.Schema(
+    {
+        cv.Optional(CONF_ALGORITHM_TUNING): cv.Schema(
+            {
+                cv.Optional(CONF_INDEX_OFFSET, default=100): cv.int_range(1, 250),
+                cv.Optional(CONF_LEARNING_TIME_OFFSET_HOURS, default=12): cv.int_range(
+                    1, 1000
+                ),
+                cv.Optional(CONF_LEARNING_TIME_GAIN_HOURS, default=12): cv.int_range(
+                    1, 1000
+                ),
+                cv.Optional(
+                    CONF_GATING_MAX_DURATION_MINUTES, default=720
+                ): cv.int_range(0, 3000),
+                cv.Optional(CONF_STD_INITIAL, default=50): cv.int_,
+                cv.Optional(CONF_GAIN_FACTOR, default=230): cv.int_range(1, 1000),
+            }
+        )
+    }
+)
+
+CONFIG_SCHEMA = (
+    cv.Schema(
+        {
+            cv.GenerateID(): cv.declare_id(SEN5XComponent),
+            cv.Optional(CONF_PM_1_0): sensor.sensor_schema(
+                unit_of_measurement=UNIT_MICROGRAMS_PER_CUBIC_METER,
+                icon=ICON_CHEMICAL_WEAPON,
+                accuracy_decimals=2,
+                device_class=DEVICE_CLASS_PM1,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_PM_2_5): sensor.sensor_schema(
+                unit_of_measurement=UNIT_MICROGRAMS_PER_CUBIC_METER,
+                icon=ICON_CHEMICAL_WEAPON,
+                accuracy_decimals=2,
+                device_class=DEVICE_CLASS_PM25,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_PM_4_0): sensor.sensor_schema(
+                unit_of_measurement=UNIT_MICROGRAMS_PER_CUBIC_METER,
+                icon=ICON_CHEMICAL_WEAPON,
+                accuracy_decimals=2,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_PM_10_0): sensor.sensor_schema(
+                unit_of_measurement=UNIT_MICROGRAMS_PER_CUBIC_METER,
+                icon=ICON_CHEMICAL_WEAPON,
+                accuracy_decimals=2,
+                device_class=DEVICE_CLASS_PM10,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_AUTO_CLEANING_INTERVAL): cv.time_period_in_seconds_,
+            cv.Optional(CONF_VOC): sensor.sensor_schema(
+                icon=ICON_RADIATOR,
+                accuracy_decimals=0,
+                device_class=DEVICE_CLASS_VOLATILE_ORGANIC_COMPOUNDS,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ).extend(GAS_SENSOR),
+            cv.Optional(CONF_NOX): sensor.sensor_schema(
+                icon=ICON_RADIATOR,
+                accuracy_decimals=0,
+                device_class=DEVICE_CLASS_NITROUS_OXIDE,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ).extend(GAS_SENSOR),
+            cv.Optional(CONF_STORE_BASELINE, default=True): cv.boolean,
+            cv.Optional(CONF_VOC_BASELINE): cv.hex_uint16_t,
+            cv.Optional(CONF_TEMPERATURE): sensor.sensor_schema(
+                unit_of_measurement=UNIT_CELSIUS,
+                icon=ICON_THERMOMETER,
+                accuracy_decimals=2,
+                device_class=DEVICE_CLASS_TEMPERATURE,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_HUMIDITY): sensor.sensor_schema(
+                unit_of_measurement=UNIT_PERCENT,
+                icon=ICON_WATER_PERCENT,
+                accuracy_decimals=2,
+                device_class=DEVICE_CLASS_HUMIDITY,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_TEMPERATURE_COMPENSATION): cv.Schema(
+                {
+                    cv.Optional(CONF_OFFSET, default=0): cv.float_,
+                    cv.Optional(CONF_NORMALIZED_OFFSET_SLOPE, default=0): cv.percentage,
+                    cv.Optional(CONF_TIME_CONSTANT, default=0): cv.int_,
+                }
+            ),
+            cv.Optional(CONF_ACCELERATION_MODE): cv.enum(ACCELERATION_MODES),
+        }
+    )
+    .extend(cv.polling_component_schema("60s"))
+    .extend(i2c.i2c_device_schema(0x69))
+)
+
+SENSOR_MAP = {
+    CONF_PM_1_0: "set_pm_1_0_sensor",
+    CONF_PM_2_5: "set_pm_2_5_sensor",
+    CONF_PM_4_0: "set_pm_4_0_sensor",
+    CONF_PM_10_0: "set_pm_10_0_sensor",
+    CONF_VOC: "set_voc_sensor",
+    CONF_NOX: "set_nox_sensor",
+    CONF_TEMPERATURE: "set_temperature_sensor",
+    CONF_HUMIDITY: "set_humidity_sensor",
+}
+
+SETTING_MAP = {
+    CONF_AUTO_CLEANING_INTERVAL: "set_auto_cleaning_interval",
+    CONF_ACCELERATION_MODE: "set_acceleration_mode",
+}
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await cg.register_component(var, config)
+    await i2c.register_i2c_device(var, config)
+
+    for key, funcName in SETTING_MAP.items():
+        if key in config:
+            cg.add(getattr(var, funcName)(config[key]))
+
+    for key, funcName in SENSOR_MAP.items():
+        if key in config:
+            sens = await sensor.new_sensor(config[key])
+            cg.add(getattr(var, funcName)(sens))
+
+    if CONF_VOC in config and CONF_ALGORITHM_TUNING in config[CONF_VOC]:
+        cfg = config[CONF_VOC][CONF_ALGORITHM_TUNING]
+        cg.add(
+            var.set_voc_algorithm_tuning(
+                cfg[CONF_INDEX_OFFSET],
+                cfg[CONF_LEARNING_TIME_OFFSET_HOURS],
+                cfg[CONF_LEARNING_TIME_GAIN_HOURS],
+                cfg[CONF_GATING_MAX_DURATION_MINUTES],
+                cfg[CONF_STD_INITIAL],
+                cfg[CONF_GAIN_FACTOR],
+            )
+        )
+    if CONF_NOX in config and CONF_ALGORITHM_TUNING in config[CONF_NOX]:
+        cfg = config[CONF_NOX][CONF_ALGORITHM_TUNING]
+        cg.add(
+            var.set_nox_algorithm_tuning(
+                cfg[CONF_INDEX_OFFSET],
+                cfg[CONF_LEARNING_TIME_OFFSET_HOURS],
+                cfg[CONF_LEARNING_TIME_GAIN_HOURS],
+                cfg[CONF_GATING_MAX_DURATION_MINUTES],
+                cfg[CONF_GAIN_FACTOR],
+            )
+        )
+    if CONF_TEMPERATURE_COMPENSATION in config:
+        cg.add(
+            var.set_temperature_compensation(
+                config[CONF_TEMPERATURE_COMPENSATION][CONF_OFFSET],
+                config[CONF_TEMPERATURE_COMPENSATION][CONF_NORMALIZED_OFFSET_SLOPE],
+                config[CONF_TEMPERATURE_COMPENSATION][CONF_TIME_CONSTANT],
+            )
+        )
+
+
+SEN5X_ACTION_SCHEMA = maybe_simple_id(
+    {
+        cv.Required(CONF_ID): cv.use_id(SEN5XComponent),
+    }
+)
+
+
+@automation.register_action(
+    "sen5x.start_fan_autoclean", StartFanAction, SEN5X_ACTION_SCHEMA
+)
+async def sen54_fan_to_code(config, action_id, template_arg, args):
+    paren = await cg.get_variable(config[CONF_ID])
+    return cg.new_Pvariable(action_id, template_arg, paren)

esphome/components/sensirion_common/__init__.py

@@ -0,0 +1,10 @@
+import esphome.codegen as cg
+
+from esphome.components import i2c
+
+
+CODEOWNERS = ["@martgras"]
+
+sensirion_common_ns = cg.esphome_ns.namespace("sensirion_common")
+
+SensirionI2CDevice = sensirion_common_ns.class_("SensirionI2CDevice", i2c.I2CDevice)

esphome/components/sensirion_common/i2c_sensirion.cpp

@@ -0,0 +1,128 @@
+#include "i2c_sensirion.h"
+#include "esphome/core/log.h"
+#include "esphome/core/hal.h"
+#include <cinttypes>
+
+namespace esphome {
+namespace sensirion_common {
+
+static const char *const TAG = "sensirion_i2c";
+// To avoid memory allocations for small writes a stack buffer is used
+static const size_t BUFFER_STACK_SIZE = 16;
+
+bool SensirionI2CDevice::read_data(uint16_t *data, uint8_t len) {
+  const uint8_t num_bytes = len * 3;
+  std::vector<uint8_t> buf(num_bytes);
+
+  last_error_ = this->read(buf.data(), num_bytes);
+  if (last_error_ != i2c::ERROR_OK) {
+    return false;
+  }
+
+  for (uint8_t i = 0; i < len; i++) {
+    const uint8_t j = 3 * i;
+    uint8_t crc = sht_crc_(buf[j], buf[j + 1]);
+    if (crc != buf[j + 2]) {
+      ESP_LOGE(TAG, "CRC8 Checksum invalid at pos %d! 0x%02X != 0x%02X", i, buf[j + 2], crc);
+      last_error_ = i2c::ERROR_CRC;
+      return false;
+    }
+    data[i] = encode_uint16(buf[j], buf[j + 1]);
+  }
+  return true;
+}
+/***
+ * write command with parameters and insert crc
+ * use stack array for less than 4 paramaters. Most sensirion i2c commands have less parameters
+ */
+bool SensirionI2CDevice::write_command_(uint16_t command, CommandLen command_len, const uint16_t *data,
+                                        uint8_t data_len) {
+  uint8_t temp_stack[BUFFER_STACK_SIZE];
+  std::unique_ptr<uint8_t[]> temp_heap;
+  uint8_t *temp;
+  size_t required_buffer_len = data_len * 3 + 2;
+
+  // Is a dynamic allocation required ?
+  if (required_buffer_len >= BUFFER_STACK_SIZE) {
+    temp_heap = std::unique_ptr<uint8_t[]>(new uint8_t[required_buffer_len]);
+    temp = temp_heap.get();
+  } else {
+    temp = temp_stack;
+  }
+  // First byte or word is the command
+  uint8_t raw_idx = 0;
+  if (command_len == 1) {
+    temp[raw_idx++] = command & 0xFF;
+  } else {
+    // command is 2 bytes
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+    temp[raw_idx++] = command >> 8;
+    temp[raw_idx++] = command & 0xFF;
+#else
+    temp[raw_idx++] = command & 0xFF;
+    temp[raw_idx++] = command >> 8;
+#endif
+  }
+  // add parameters folllowed by crc
+  // skipped if len == 0
+  for (size_t i = 0; i < data_len; i++) {
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+    temp[raw_idx++] = data[i] >> 8;
+    temp[raw_idx++] = data[i] & 0xFF;
+#else
+    temp[raw_idx++] = data[i] & 0xFF;
+    temp[raw_idx++] = data[i] >> 8;
+#endif
+    temp[raw_idx++] = sht_crc_(data[i]);
+  }
+  last_error_ = this->write(temp, raw_idx);
+  return last_error_ == i2c::ERROR_OK;
+}
+
+bool SensirionI2CDevice::get_register_(uint16_t reg, CommandLen command_len, uint16_t *data, uint8_t len,
+                                       uint8_t delay_ms) {
+  if (!this->write_command_(reg, command_len, nullptr, 0)) {
+    ESP_LOGE(TAG, "Failed to write i2c register=0x%X (%d) err=%d,", reg, command_len, this->last_error_);
+    return false;
+  }
+  delay(delay_ms);
+  bool result = this->read_data(data, len);
+  if (!result) {
+    ESP_LOGE(TAG, "Failed to read data from register=0x%X err=%d,", reg, this->last_error_);
+  }
+  return result;
+}
+
+// The 8-bit CRC checksum is transmitted after each data word
+uint8_t SensirionI2CDevice::sht_crc_(uint16_t data) {
+  uint8_t bit;
+  uint8_t crc = 0xFF;
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+  crc ^= data >> 8;
+#else
+  crc ^= data & 0xFF;
+#endif
+  for (bit = 8; bit > 0; --bit) {
+    if (crc & 0x80) {
+      crc = (crc << 1) ^ crc_polynomial_;
+    } else {
+      crc = (crc << 1);
+    }
+  }
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+  crc ^= data & 0xFF;
+#else
+  crc ^= data >> 8;
+#endif
+  for (bit = 8; bit > 0; --bit) {
+    if (crc & 0x80) {
+      crc = (crc << 1) ^ crc_polynomial_;
+    } else {
+      crc = (crc << 1);
+    }
+  }
+  return crc;
+}
+
+}  // namespace sensirion_common
+}  // namespace esphome

esphome/components/sensirion_common/i2c_sensirion.h

@@ -0,0 +1,155 @@
+#pragma once
+#include "esphome/components/i2c/i2c.h"
+
+namespace esphome {
+namespace sensirion_common {
+
+/**
+ * Implementation of a i2c functions for Sensirion sensors
+ * Sensirion data requires crc checking.
+ * Each 16 bit word is/must be followed 8 bit CRC code
+ * (Applies to read and write - note the i2c command code doesn't need a CRC)
+ * Format:
+ *   | 16 Bit Command Code | 16 bit Data word 1 | CRC of DW 1 | 16 bit Data word 1 | CRC of DW 2 | ..
+ */
+class SensirionI2CDevice : public i2c::I2CDevice {
+ public:
+  enum CommandLen : uint8_t { ADDR_8_BIT = 1, ADDR_16_BIT = 2 };
+
+  /** Read data words from i2c device.
+   * handles crc check used by Sensirion sensors
+   * @param data pointer to raw result
+   * @param len number of words to read
+   * @return true if reading succeded
+   */
+  bool read_data(uint16_t *data, uint8_t len);
+
+  /** Read 1 data word from i2c device.
+   * @param data reference to raw result
+   * @return true if reading succeded
+   */
+  bool read_data(uint16_t &data) { return this->read_data(&data, 1); }
+
+  /** get data words from i2c register.
+   * handles crc check used by Sensirion sensors
+   * @param  i2c register
+   * @param data pointer to raw result
+   * @param len number of words to read
+   * @param delay milliseconds to to wait between sending the i2c commmand and reading the result
+   * @return true if reading succeded
+   */
+  bool get_register(uint16_t command, uint16_t *data, uint8_t len, uint8_t delay = 0) {
+    return get_register_(command, ADDR_16_BIT, data, len, delay);
+  }
+  /** Read 1 data word from 16 bit i2c register.
+   * @param  i2c register
+   * @param data reference to raw result
+   * @param delay milliseconds to to wait between sending the i2c commmand and reading the result
+   * @return true if reading succeded
+   */
+  bool get_register(uint16_t i2c_register, uint16_t &data, uint8_t delay = 0) {
+    return this->get_register_(i2c_register, ADDR_16_BIT, &data, 1, delay);
+  }
+
+  /** get data words from i2c register.
+   * handles crc check used by Sensirion sensors
+   * @param  i2c register
+   * @param data pointer to raw result
+   * @param len number of words to read
+   * @param delay milliseconds to to wait between sending the i2c commmand and reading the result
+   * @return true if reading succeded
+   */
+  bool get_8bit_register(uint8_t i2c_register, uint16_t *data, uint8_t len, uint8_t delay = 0) {
+    return get_register_(i2c_register, ADDR_8_BIT, data, len, delay);
+  }
+
+  /** Read 1 data word from 8 bit i2c register.
+   * @param  i2c register
+   * @param data reference to raw result
+   * @param delay milliseconds to to wait between sending the i2c commmand and reading the result
+   * @return true if reading succeded
+   */
+  bool get_8bit_register(uint8_t i2c_register, uint16_t &data, uint8_t delay = 0) {
+    return this->get_register_(i2c_register, ADDR_8_BIT, &data, 1, delay);
+  }
+
+  /** Write a command to the i2c device.
+   * @param command i2c command to send
+   * @return true if reading succeded
+   */
+  template<class T> bool write_command(T i2c_register) { return write_command(i2c_register, nullptr, 0); }
+
+  /** Write a command and one data word to the i2c device .
+   * @param command i2c command to send
+   * @param data argument for the i2c command
+   * @return true if reading succeded
+   */
+  template<class T> bool write_command(T i2c_register, uint16_t data) { return write_command(i2c_register, &data, 1); }
+
+  /** Write a command with arguments as words
+   * @param i2c_register i2c command to send - an be uint8_t or uint16_t
+   * @param data vector<uint16> arguments for the i2c command
+   * @return true if reading succeded
+   */
+  template<class T> bool write_command(T i2c_register, const std::vector<uint16_t> &data) {
+    return write_command_(i2c_register, sizeof(T), data.data(), data.size());
+  }
+
+  /** Write a command with arguments as words
+   * @param i2c_register i2c command to send - an be uint8_t or uint16_t
+   * @param data arguments for the i2c command
+   * @param len number of arguments (words)
+   * @return true if reading succeded
+   */
+  template<class T> bool write_command(T i2c_register, const uint16_t *data, uint8_t len) {
+    // limit to 8 or 16 bit only
+    static_assert(sizeof(i2c_register) == 1 || sizeof(i2c_register) == 2,
+                  "only 8 or 16 bit command types are supported.");
+    return write_command_(i2c_register, CommandLen(sizeof(T)), data, len);
+  }
+
+ protected:
+  uint8_t crc_polynomial_{0x31u};  // default for sensirion
+  /** Write a command with arguments as words
+   * @param command i2c command to send can be uint8_t or uint16_t
+   * @param command_len either 1 for short 8 bit command or 2 for 16 bit command codes
+   * @param data arguments for the i2c command
+   * @param data_len number of arguments (words)
+   * @return true if reading succeded
+   */
+  bool write_command_(uint16_t command, CommandLen command_len, const uint16_t *data, uint8_t data_len);
+
+  /** get data words from i2c register.
+   * handles crc check used by Sensirion sensors
+   * @param  i2c register
+   * @param command_len either 1 for short 8 bit command or 2 for 16 bit command codes
+   * @param data pointer to raw result
+   * @param len number of words to read
+   * @param delay milliseconds to to wait between sending the i2c commmand and reading the result
+   * @return true if reading succeded
+   */
+  bool get_register_(uint16_t reg, CommandLen command_len, uint16_t *data, uint8_t len, uint8_t delay);
+
+  /** 8-bit CRC checksum that is transmitted after each data word for read and write operation
+   * @param command i2c command to send
+   * @param data data word for which the crc8 checksum is calculated
+   * @param len number of arguments (words)
+   * @return 8 Bit CRC
+   */
+  uint8_t sht_crc_(uint16_t data);
+
+  /** 8-bit CRC checksum that is transmitted after each data word for read and write operation
+   * @param command i2c command to send
+   * @param data1 high byte of data word
+   * @param data2 low byte of data word
+   * @return 8 Bit CRC
+   */
+  uint8_t sht_crc_(uint8_t data1, uint8_t data2) { return sht_crc_(encode_uint16(data1, data2)); }
+
+  /** last error code from i2c operation
+   */
+  i2c::ErrorCode last_error_;
+};
+
+}  // namespace sensirion_common
+}  // namespace esphome

esphome/components/sensor/__init__.py

@@ -29,6 +29,7 @@ from esphome.const import (
     CONF_WINDOW_SIZE,
     CONF_MQTT_ID,
     CONF_FORCE_UPDATE,
+    DEVICE_CLASS_DURATION,
     DEVICE_CLASS_EMPTY,
     DEVICE_CLASS_AQI,
     DEVICE_CLASS_BATTERY,
@@ -70,6 +71,7 @@ DEVICE_CLASSES = [
     DEVICE_CLASS_CARBON_DIOXIDE,
     DEVICE_CLASS_CARBON_MONOXIDE,
     DEVICE_CLASS_CURRENT,
+    DEVICE_CLASS_DURATION,
     DEVICE_CLASS_ENERGY,
     DEVICE_CLASS_GAS,
     DEVICE_CLASS_HUMIDITY,
@@ -212,8 +214,8 @@ SENSOR_SCHEMA = cv.ENTITY_BASE_SCHEMA.extend(cv.MQTT_COMPONENT_SCHEMA).extend(
         cv.Optional(CONF_ON_VALUE_RANGE): automation.validate_automation(
             {
                 cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(ValueRangeTrigger),
-                cv.Optional(CONF_ABOVE): cv.float_,
-                cv.Optional(CONF_BELOW): cv.float_,
+                cv.Optional(CONF_ABOVE): cv.templatable(cv.float_),
+                cv.Optional(CONF_BELOW): cv.templatable(cv.float_),
             },
             cv.has_at_least_one_key(CONF_ABOVE, CONF_BELOW),
         ),

esphome/components/sgp30/sensor.py

@@ -1,10 +1,13 @@
 import esphome.codegen as cg
 import esphome.config_validation as cv
-from esphome.components import i2c, sensor
+from esphome.components import i2c, sensor, sensirion_common
+
 from esphome.const import (
     CONF_ID,
     CONF_BASELINE,
     CONF_ECO2,
+    CONF_STORE_BASELINE,
+    CONF_TEMPERATURE_SOURCE,
     CONF_TVOC,
     ICON_RADIATOR,
     DEVICE_CLASS_CARBON_DIOXIDE,
@@ -13,20 +16,23 @@ from esphome.const import (
     UNIT_PARTS_PER_MILLION,
     UNIT_PARTS_PER_BILLION,
     ICON_MOLECULE_CO2,
+    ENTITY_CATEGORY_DIAGNOSTIC,
 )
 
 DEPENDENCIES = ["i2c"]
+AUTO_LOAD = ["sensirion_common"]
 
 sgp30_ns = cg.esphome_ns.namespace("sgp30")
-SGP30Component = sgp30_ns.class_("SGP30Component", cg.PollingComponent, i2c.I2CDevice)
+SGP30Component = sgp30_ns.class_(
+    "SGP30Component", cg.PollingComponent, sensirion_common.SensirionI2CDevice
+)
 
 CONF_ECO2_BASELINE = "eco2_baseline"
 CONF_TVOC_BASELINE = "tvoc_baseline"
-CONF_STORE_BASELINE = "store_baseline"
 CONF_UPTIME = "uptime"
 CONF_COMPENSATION = "compensation"
 CONF_HUMIDITY_SOURCE = "humidity_source"
-CONF_TEMPERATURE_SOURCE = "temperature_source"
+
 
 CONFIG_SCHEMA = (
     cv.Schema(
@@ -49,10 +55,12 @@ CONFIG_SCHEMA = (
             cv.Optional(CONF_ECO2_BASELINE): sensor.sensor_schema(
                 icon=ICON_MOLECULE_CO2,
                 accuracy_decimals=0,
+                entity_category=ENTITY_CATEGORY_DIAGNOSTIC,
             ),
             cv.Optional(CONF_TVOC_BASELINE): sensor.sensor_schema(
                 icon=ICON_RADIATOR,
                 accuracy_decimals=0,
+                entity_category=ENTITY_CATEGORY_DIAGNOSTIC,
             ),
             cv.Optional(CONF_STORE_BASELINE, default=True): cv.boolean,
             cv.Optional(CONF_BASELINE): cv.Schema(

esphome/components/sgp30/sgp30.cpp

@@ -36,14 +36,8 @@ void SGP30Component::setup() {
   ESP_LOGCONFIG(TAG, "Setting up SGP30...");
 
   // Serial Number identification
-  if (!this->write_command_(SGP30_CMD_GET_SERIAL_ID)) {
-    this->error_code_ = COMMUNICATION_FAILED;
-    this->mark_failed();
-    return;
-  }
   uint16_t raw_serial_number[3];
-
-  if (!this->read_data_(raw_serial_number, 3)) {
+  if (!this->get_register(SGP30_CMD_GET_SERIAL_ID, raw_serial_number, 3)) {
     this->mark_failed();
     return;
   }
@@ -52,16 +46,12 @@ void SGP30Component::setup() {
   ESP_LOGD(TAG, "Serial Number: %" PRIu64, this->serial_number_);
 
   // Featureset identification for future use
-  if (!this->write_command_(SGP30_CMD_GET_FEATURESET)) {
+  uint16_t raw_featureset;
+  if (!this->get_register(SGP30_CMD_GET_FEATURESET, raw_featureset)) {
     this->mark_failed();
     return;
   }
-  uint16_t raw_featureset[1];
-  if (!this->read_data_(raw_featureset, 1)) {
-    this->mark_failed();
-    return;
-  }
-  this->featureset_ = raw_featureset[0];
+  this->featureset_ = raw_featureset;
   if (uint16_t(this->featureset_ >> 12) != 0x0) {
     if (uint16_t(this->featureset_ >> 12) == 0x1) {
       // ID matching a different sensor: SGPC3
@@ -76,7 +66,7 @@ void SGP30Component::setup() {
   ESP_LOGD(TAG, "Product version: 0x%0X", uint16_t(this->featureset_ & 0x1FF));
 
   // Sensor initialization
-  if (!this->write_command_(SGP30_CMD_IAQ_INIT)) {
+  if (!this->write_command(SGP30_CMD_IAQ_INIT)) {
     ESP_LOGE(TAG, "Sensor sgp30_iaq_init failed.");
     this->error_code_ = MEASUREMENT_INIT_FAILED;
     this->mark_failed();
@@ -119,14 +109,14 @@ bool SGP30Component::is_sensor_baseline_reliable_() {
 
 void SGP30Component::read_iaq_baseline_() {
   if (this->is_sensor_baseline_reliable_()) {
-    if (!this->write_command_(SGP30_CMD_GET_IAQ_BASELINE)) {
+    if (!this->write_command(SGP30_CMD_GET_IAQ_BASELINE)) {
       ESP_LOGD(TAG, "Error getting baseline");
       this->status_set_warning();
       return;
     }
     this->set_timeout(50, [this]() {
       uint16_t raw_data[2];
-      if (!this->read_data_(raw_data, 2)) {
+      if (!this->read_data(raw_data, 2)) {
         this->status_set_warning();
         return;
       }
@@ -274,14 +264,14 @@ void SGP30Component::dump_config() {
 }
 
 void SGP30Component::update() {
-  if (!this->write_command_(SGP30_CMD_MEASURE_IAQ)) {
+  if (!this->write_command(SGP30_CMD_MEASURE_IAQ)) {
     this->status_set_warning();
     return;
   }
   this->seconds_since_last_store_ += this->update_interval_ / 1000;
   this->set_timeout(50, [this]() {
     uint16_t raw_data[2];
-    if (!this->read_data_(raw_data, 2)) {
+    if (!this->read_data(raw_data, 2)) {
       this->status_set_warning();
       return;
     }
@@ -305,56 +295,5 @@ void SGP30Component::update() {
   });
 }
 
-bool SGP30Component::write_command_(uint16_t command) {
-  // Warning ugly, trick the I2Ccomponent base by setting register to the first 8 bit.
-  return this->write_byte(command >> 8, command & 0xFF);
-}
-
-uint8_t SGP30Component::sht_crc_(uint8_t data1, uint8_t data2) {
-  uint8_t bit;
-  uint8_t crc = 0xFF;
-
-  crc ^= data1;
-  for (bit = 8; bit > 0; --bit) {
-    if (crc & 0x80) {
-      crc = (crc << 1) ^ 0x131;
-    } else {
-      crc = (crc << 1);
-    }
-  }
-
-  crc ^= data2;
-  for (bit = 8; bit > 0; --bit) {
-    if (crc & 0x80) {
-      crc = (crc << 1) ^ 0x131;
-    } else {
-      crc = (crc << 1);
-    }
-  }
-
-  return crc;
-}
-
-bool SGP30Component::read_data_(uint16_t *data, uint8_t len) {
-  const uint8_t num_bytes = len * 3;
-  std::vector<uint8_t> buf(num_bytes);
-
-  if (this->read(buf.data(), num_bytes) != i2c::ERROR_OK) {
-    return false;
-  }
-
-  for (uint8_t i = 0; i < len; i++) {
-    const uint8_t j = 3 * i;
-    uint8_t crc = sht_crc_(buf[j], buf[j + 1]);
-    if (crc != buf[j + 2]) {
-      ESP_LOGE(TAG, "CRC8 Checksum invalid! 0x%02X != 0x%02X", buf[j + 2], crc);
-      return false;
-    }
-    data[i] = (buf[j] << 8) | buf[j + 1];
-  }
-
-  return true;
-}
-
 }  // namespace sgp30
 }  // namespace esphome

esphome/components/sgp30/sgp30.h

@@ -2,7 +2,7 @@
 
 #include "esphome/core/component.h"
 #include "esphome/components/sensor/sensor.h"
-#include "esphome/components/i2c/i2c.h"
+#include "esphome/components/sensirion_common/i2c_sensirion.h"
 #include "esphome/core/preferences.h"
 #include <cmath>
 
@@ -15,7 +15,7 @@ struct SGP30Baselines {
 } PACKED;
 
 /// This class implements support for the Sensirion SGP30 i2c GAS (VOC and CO2eq) sensors.
-class SGP30Component : public PollingComponent, public i2c::I2CDevice {
+class SGP30Component : public PollingComponent, public sensirion_common::SensirionI2CDevice {
  public:
   void set_eco2_sensor(sensor::Sensor *eco2) { eco2_sensor_ = eco2; }
   void set_tvoc_sensor(sensor::Sensor *tvoc) { tvoc_sensor_ = tvoc; }
@@ -33,13 +33,10 @@ class SGP30Component : public PollingComponent, public i2c::I2CDevice {
   float get_setup_priority() const override { return setup_priority::DATA; }
 
  protected:
-  bool write_command_(uint16_t command);
-  bool read_data_(uint16_t *data, uint8_t len);
   void send_env_data_();
   void read_iaq_baseline_();
   bool is_sensor_baseline_reliable_();
   void write_iaq_baseline_(uint16_t eco2_baseline, uint16_t tvoc_baseline);
-  uint8_t sht_crc_(uint8_t data1, uint8_t data2);
   uint64_t serial_number_;
   uint16_t featureset_;
   uint32_t required_warm_up_time_;

esphome/components/sgp40/sensor.py

@@ -1,25 +1,30 @@
 import esphome.codegen as cg
 import esphome.config_validation as cv
-from esphome.components import i2c, sensor
+from esphome.components import i2c, sensor, sensirion_common
+
 from esphome.const import (
+    CONF_STORE_BASELINE,
+    CONF_TEMPERATURE_SOURCE,
     ICON_RADIATOR,
     DEVICE_CLASS_VOLATILE_ORGANIC_COMPOUNDS,
     STATE_CLASS_MEASUREMENT,
 )
 
 DEPENDENCIES = ["i2c"]
+AUTO_LOAD = ["sensirion_common"]
 
 CODEOWNERS = ["@SenexCrenshaw"]
 
 sgp40_ns = cg.esphome_ns.namespace("sgp40")
 SGP40Component = sgp40_ns.class_(
-    "SGP40Component", sensor.Sensor, cg.PollingComponent, i2c.I2CDevice
+    "SGP40Component",
+    sensor.Sensor,
+    cg.PollingComponent,
+    sensirion_common.SensirionI2CDevice,
 )
 
 CONF_COMPENSATION = "compensation"
 CONF_HUMIDITY_SOURCE = "humidity_source"
-CONF_TEMPERATURE_SOURCE = "temperature_source"
-CONF_STORE_BASELINE = "store_baseline"
 CONF_VOC_BASELINE = "voc_baseline"
 
 CONFIG_SCHEMA = (

esphome/components/sgp40/sgp40.cpp

@@ -12,14 +12,14 @@ void SGP40Component::setup() {
   ESP_LOGCONFIG(TAG, "Setting up SGP40...");
 
   // Serial Number identification
-  if (!this->write_command_(SGP40_CMD_GET_SERIAL_ID)) {
+  if (!this->write_command(SGP40_CMD_GET_SERIAL_ID)) {
     this->error_code_ = COMMUNICATION_FAILED;
     this->mark_failed();
     return;
   }
   uint16_t raw_serial_number[3];
 
-  if (!this->read_data_(raw_serial_number, 3)) {
+  if (!this->read_data(raw_serial_number, 3)) {
     this->mark_failed();
     return;
   }
@@ -28,19 +28,19 @@ void SGP40Component::setup() {
   ESP_LOGD(TAG, "Serial Number: %" PRIu64, this->serial_number_);
 
   // Featureset identification for future use
-  if (!this->write_command_(SGP40_CMD_GET_FEATURESET)) {
+  if (!this->write_command(SGP40_CMD_GET_FEATURESET)) {
     ESP_LOGD(TAG, "raw_featureset write_command_ failed");
     this->mark_failed();
     return;
   }
-  uint16_t raw_featureset[1];
-  if (!this->read_data_(raw_featureset, 1)) {
+  uint16_t raw_featureset;
+  if (!this->read_data(raw_featureset)) {
     ESP_LOGD(TAG, "raw_featureset read_data_ failed");
     this->mark_failed();
     return;
   }
 
-  this->featureset_ = raw_featureset[0];
+  this->featureset_ = raw_featureset;
   if ((this->featureset_ & 0x1FF) != SGP40_FEATURESET) {
     ESP_LOGD(TAG, "Product feature set failed 0x%0X , expecting 0x%0X", uint16_t(this->featureset_ & 0x1FF),
              SGP40_FEATURESET);
@@ -95,21 +95,21 @@ void SGP40Component::setup() {
 
 void SGP40Component::self_test_() {
   ESP_LOGD(TAG, "Self-test started");
-  if (!this->write_command_(SGP40_CMD_SELF_TEST)) {
+  if (!this->write_command(SGP40_CMD_SELF_TEST)) {
     this->error_code_ = COMMUNICATION_FAILED;
     ESP_LOGD(TAG, "Self-test communication failed");
     this->mark_failed();
   }
 
   this->set_timeout(250, [this]() {
-    uint16_t reply[1];
-    if (!this->read_data_(reply, 1)) {
+    uint16_t reply;
+    if (!this->read_data(reply)) {
       ESP_LOGD(TAG, "Self-test read_data_ failed");
       this->mark_failed();
       return;
     }
 
-    if (reply[0] == 0xD400) {
+    if (reply == 0xD400) {
       this->self_test_complete_ = true;
       ESP_LOGD(TAG, "Self-test completed");
       return;
@@ -192,51 +192,28 @@ uint16_t SGP40Component::measure_raw_() {
     temperature = 25;
   }
 
-  uint8_t command[8];
-
-  command[0] = 0x26;
-  command[1] = 0x0F;
-
+  uint16_t data[2];
   uint16_t rhticks = llround((uint16_t)((humidity * 65535) / 100));
-  command[2] = rhticks >> 8;
-  command[3] = rhticks & 0xFF;
-  command[4] = generate_crc_(command + 2, 2);
   uint16_t tempticks = (uint16_t)(((temperature + 45) * 65535) / 175);
-  command[5] = tempticks >> 8;
-  command[6] = tempticks & 0xFF;
-  command[7] = generate_crc_(command + 5, 2);
+  // first paramater is the relative humidity ticks
+  data[0] = rhticks;
+  // second paramater is the temperature ticks
+  data[1] = tempticks;
 
-  if (this->write(command, 8) != i2c::ERROR_OK) {
+  if (!this->write_command(SGP40_CMD_MEASURE_RAW, data, 2)) {
     this->status_set_warning();
-    ESP_LOGD(TAG, "write error");
-    return UINT16_MAX;
+    ESP_LOGD(TAG, "write error (%d)", this->last_error_);
+    return false;
   }
   delay(30);
-  uint16_t raw_data[1];
 
-  if (!this->read_data_(raw_data, 1)) {
+  uint16_t raw_data;
+  if (!this->read_data(raw_data)) {
     this->status_set_warning();
     ESP_LOGD(TAG, "read_data_ error");
     return UINT16_MAX;
   }
-  return raw_data[0];
-}
-
-uint8_t SGP40Component::generate_crc_(const uint8_t *data, uint8_t datalen) {
-  // calculates 8-Bit checksum with given polynomial
-  uint8_t crc = SGP40_CRC8_INIT;
-
-  for (uint8_t i = 0; i < datalen; i++) {
-    crc ^= data[i];
-    for (uint8_t b = 0; b < 8; b++) {
-      if (crc & 0x80) {
-        crc = (crc << 1) ^ SGP40_CRC8_POLYNOMIAL;
-      } else {
-        crc <<= 1;
-      }
-    }
-  }
-  return crc;
+  return raw_data;
 }
 
 void SGP40Component::update_voc_index() {
@@ -293,56 +270,5 @@ void SGP40Component::dump_config() {
   }
 }
 
-bool SGP40Component::write_command_(uint16_t command) {
-  // Warning ugly, trick the I2Ccomponent base by setting register to the first 8 bit.
-  return this->write_byte(command >> 8, command & 0xFF);
-}
-
-uint8_t SGP40Component::sht_crc_(uint8_t data1, uint8_t data2) {
-  uint8_t bit;
-  uint8_t crc = 0xFF;
-
-  crc ^= data1;
-  for (bit = 8; bit > 0; --bit) {
-    if (crc & 0x80) {
-      crc = (crc << 1) ^ 0x131;
-    } else {
-      crc = (crc << 1);
-    }
-  }
-
-  crc ^= data2;
-  for (bit = 8; bit > 0; --bit) {
-    if (crc & 0x80) {
-      crc = (crc << 1) ^ 0x131;
-    } else {
-      crc = (crc << 1);
-    }
-  }
-
-  return crc;
-}
-
-bool SGP40Component::read_data_(uint16_t *data, uint8_t len) {
-  const uint8_t num_bytes = len * 3;
-  std::vector<uint8_t> buf(num_bytes);
-
-  if (this->read(buf.data(), num_bytes) != i2c::ERROR_OK) {
-    return false;
-  }
-
-  for (uint8_t i = 0; i < len; i++) {
-    const uint8_t j = 3 * i;
-    uint8_t crc = sht_crc_(buf[j], buf[j + 1]);
-    if (crc != buf[j + 2]) {
-      ESP_LOGE(TAG, "CRC8 Checksum invalid! 0x%02X != 0x%02X", buf[j + 2], crc);
-      return false;
-    }
-    data[i] = (buf[j] << 8) | buf[j + 1];
-  }
-
-  return true;
-}
-
 }  // namespace sgp40
 }  // namespace esphome

esphome/components/sgp40/sgp40.h

@@ -2,7 +2,7 @@
 
 #include "esphome/core/component.h"
 #include "esphome/components/sensor/sensor.h"
-#include "esphome/components/i2c/i2c.h"
+#include "esphome/components/sensirion_common/i2c_sensirion.h"
 #include "esphome/core/application.h"
 #include "esphome/core/preferences.h"
 #include "sensirion_voc_algorithm.h"
@@ -28,6 +28,7 @@ static const uint8_t SGP40_WORD_LEN = 2;            ///< 2 bytes per word
 static const uint16_t SGP40_CMD_GET_SERIAL_ID = 0x3682;
 static const uint16_t SGP40_CMD_GET_FEATURESET = 0x202f;
 static const uint16_t SGP40_CMD_SELF_TEST = 0x280e;
+static const uint16_t SGP40_CMD_MEASURE_RAW = 0x260F;
 
 // Shortest time interval of 3H for storing baseline values.
 // Prevents wear of the flash because of too many write operations
@@ -39,7 +40,7 @@ const uint32_t MAXIMUM_STORAGE_DIFF = 50;
 class SGP40Component;
 
 /// This class implements support for the Sensirion sgp40 i2c GAS (VOC) sensors.
-class SGP40Component : public PollingComponent, public sensor::Sensor, public i2c::I2CDevice {
+class SGP40Component : public PollingComponent, public sensor::Sensor, public sensirion_common::SensirionI2CDevice {
  public:
   void set_humidity_sensor(sensor::Sensor *humidity) { humidity_sensor_ = humidity; }
   void set_temperature_sensor(sensor::Sensor *temperature) { temperature_sensor_ = temperature; }
@@ -55,11 +56,8 @@ class SGP40Component : public PollingComponent, public sensor::Sensor, public i2
   /// Input sensor for humidity and temperature compensation.
   sensor::Sensor *humidity_sensor_{nullptr};
   sensor::Sensor *temperature_sensor_{nullptr};
-  bool write_command_(uint16_t command);
-  bool read_data_(uint16_t *data, uint8_t len);
   int16_t sensirion_init_sensors_();
   int16_t sgp40_probe_();
-  uint8_t sht_crc_(uint8_t data1, uint8_t data2);
   uint64_t serial_number_;
   uint16_t featureset_;
   int32_t measure_voc_index_();

esphome/components/shelly_dimmer/__init__.py

@@ -0,0 +1 @@
+CODEOWNERS = ["@rnauber", "@edge90"]

esphome/components/shelly_dimmer/dev_table.h

@@ -0,0 +1,158 @@
+/*
+  stm32flash - Open Source ST STM32 flash program for Arduino
+  Copyright (C) 2010 Geoffrey McRae <geoff@spacevs.com>
+  Copyright (C) 2014-2015 Antonio Borneo <borneo.antonio@gmail.com>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License
+  as published by the Free Software Foundation; either version 2
+  of the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*/
+#pragma once
+
+#include "esphome/core/defines.h"
+#ifdef USE_SHD_FIRMWARE_DATA
+#include "stm32flash.h"
+
+namespace esphome {
+namespace shelly_dimmer {
+
+constexpr uint32_t SZ_128 = 0x00000080;
+constexpr uint32_t SZ_256 = 0x00000100;
+constexpr uint32_t SZ_1K = 0x00000400;
+constexpr uint32_t SZ_2K = 0x00000800;
+constexpr uint32_t SZ_16K = 0x00004000;
+constexpr uint32_t SZ_32K = 0x00008000;
+constexpr uint32_t SZ_64K = 0x00010000;
+constexpr uint32_t SZ_128K = 0x00020000;
+constexpr uint32_t SZ_256K = 0x00040000;
+
+/*
+ * Page-size for page-by-page flash erase.
+ * Arrays are zero terminated; last non-zero value is automatically repeated
+ */
+
+/* fixed size pages */
+constexpr uint32_t p_128[] = {SZ_128, 0};  // NOLINT
+constexpr uint32_t p_256[] = {SZ_256, 0};  // NOLINT
+constexpr uint32_t p_1k[] = {SZ_1K, 0};    // NOLINT
+constexpr uint32_t p_2k[] = {SZ_2K, 0};    // NOLINT
+/* F2 and F4 page size */
+constexpr uint32_t f2f4[] = {SZ_16K, SZ_16K, SZ_16K, SZ_16K, SZ_64K, SZ_128K, 0};  // NOLINT
+/* F4 dual bank page size */
+constexpr uint32_t f4db[] = {SZ_16K,  SZ_16K, SZ_16K, SZ_16K, SZ_64K, SZ_128K, SZ_128K,  // NOLINT
+                             SZ_128K, SZ_16K, SZ_16K, SZ_16K, SZ_16K, SZ_64K,  SZ_128K, 0};
+/* F7 page size */
+constexpr uint32_t f7[] = {SZ_32K, SZ_32K, SZ_32K, SZ_32K, SZ_128K, SZ_256K, 0};  // NOLINT
+
+/*
+ * Device table, corresponds to the "Bootloader device-dependant parameters"
+ * table in ST document AN2606.
+ * Note that the option bytes upper range is inclusive!
+ */
+constexpr stm32_dev_t DEVICES[] = {
+    /* ID   "name"                              SRAM-address-range      FLASH-address-range    PPS  PSize
+       Option-byte-addr-range  System-mem-addr-range   Flags */
+    /* F0 */
+    {0x440, "STM32F030x8/F05xxx", 0x20000800, 0x20002000, 0x08000000, 0x08010000, 4, p_1k, 0x1FFFF800, 0x1FFFF80F,
+     0x1FFFEC00, 0x1FFFF800, 0},
+    {0x442, "STM32F030xC/F09xxx", 0x20001800, 0x20008000, 0x08000000, 0x08040000, 2, p_2k, 0x1FFFF800, 0x1FFFF80F,
+     0x1FFFC800, 0x1FFFF800, F_OBLL},
+    {0x444, "STM32F03xx4/6", 0x20000800, 0x20001000, 0x08000000, 0x08008000, 4, p_1k, 0x1FFFF800, 0x1FFFF80F,
+     0x1FFFEC00, 0x1FFFF800, 0},
+    {0x445, "STM32F04xxx/F070x6", 0x20001800, 0x20001800, 0x08000000, 0x08008000, 4, p_1k, 0x1FFFF800, 0x1FFFF80F,
+     0x1FFFC400, 0x1FFFF800, 0},
+    {0x448, "STM32F070xB/F071xx/F72xx", 0x20001800, 0x20004000, 0x08000000, 0x08020000, 2, p_2k, 0x1FFFF800, 0x1FFFF80F,
+     0x1FFFC800, 0x1FFFF800, 0},
+    /* F1 */
+    {0x412, "STM32F10xxx Low-density", 0x20000200, 0x20002800, 0x08000000, 0x08008000, 4, p_1k, 0x1FFFF800, 0x1FFFF80F,
+     0x1FFFF000, 0x1FFFF800, 0},
+    {0x410, "STM32F10xxx Medium-density", 0x20000200, 0x20005000, 0x08000000, 0x08020000, 4, p_1k, 0x1FFFF800,
+     0x1FFFF80F, 0x1FFFF000, 0x1FFFF800, 0},
+    {0x414, "STM32F10xxx High-density", 0x20000200, 0x20010000, 0x08000000, 0x08080000, 2, p_2k, 0x1FFFF800, 0x1FFFF80F,
+     0x1FFFF000, 0x1FFFF800, 0},
+    {0x420, "STM32F10xxx Medium-density VL", 0x20000200, 0x20002000, 0x08000000, 0x08020000, 4, p_1k, 0x1FFFF800,
+     0x1FFFF80F, 0x1FFFF000, 0x1FFFF800, 0},
+    {0x428, "STM32F10xxx High-density VL", 0x20000200, 0x20008000, 0x08000000, 0x08080000, 2, p_2k, 0x1FFFF800,
+     0x1FFFF80F, 0x1FFFF000, 0x1FFFF800, 0},
+    {0x418, "STM32F105xx/F107xx", 0x20001000, 0x20010000, 0x08000000, 0x08040000, 2, p_2k, 0x1FFFF800, 0x1FFFF80F,
+     0x1FFFB000, 0x1FFFF800, 0},
+    {0x430, "STM32F10xxx XL-density", 0x20000800, 0x20018000, 0x08000000, 0x08100000, 2, p_2k, 0x1FFFF800, 0x1FFFF80F,
+     0x1FFFE000, 0x1FFFF800, 0},
+    /* F2 */
+    {0x411, "STM32F2xxxx", 0x20002000, 0x20020000, 0x08000000, 0x08100000, 1, f2f4, 0x1FFFC000, 0x1FFFC00F, 0x1FFF0000,
+     0x1FFF7800, 0},
+    /* F3 */
+    {0x432, "STM32F373xx/F378xx", 0x20001400, 0x20008000, 0x08000000, 0x08040000, 2, p_2k, 0x1FFFF800, 0x1FFFF80F,
+     0x1FFFD800, 0x1FFFF800, 0},
+    {0x422, "STM32F302xB(C)/F303xB(C)/F358xx", 0x20001400, 0x2000A000, 0x08000000, 0x08040000, 2, p_2k, 0x1FFFF800,
+     0x1FFFF80F, 0x1FFFD800, 0x1FFFF800, 0},
+    {0x439, "STM32F301xx/F302x4(6/8)/F318xx", 0x20001800, 0x20004000, 0x08000000, 0x08010000, 2, p_2k, 0x1FFFF800,
+     0x1FFFF80F, 0x1FFFD800, 0x1FFFF800, 0},
+    {0x438, "STM32F303x4(6/8)/F334xx/F328xx", 0x20001800, 0x20003000, 0x08000000, 0x08010000, 2, p_2k, 0x1FFFF800,
+     0x1FFFF80F, 0x1FFFD800, 0x1FFFF800, 0},
+    {0x446, "STM32F302xD(E)/F303xD(E)/F398xx", 0x20001800, 0x20010000, 0x08000000, 0x08080000, 2, p_2k, 0x1FFFF800,
+     0x1FFFF80F, 0x1FFFD800, 0x1FFFF800, 0},
+    /* F4 */
+    {0x413, "STM32F40xxx/41xxx", 0x20003000, 0x20020000, 0x08000000, 0x08100000, 1, f2f4, 0x1FFFC000, 0x1FFFC00F,
+     0x1FFF0000, 0x1FFF7800, 0},
+    {0x419, "STM32F42xxx/43xxx", 0x20003000, 0x20030000, 0x08000000, 0x08200000, 1, f4db, 0x1FFEC000, 0x1FFFC00F,
+     0x1FFF0000, 0x1FFF7800, 0},
+    {0x423, "STM32F401xB(C)", 0x20003000, 0x20010000, 0x08000000, 0x08040000, 1, f2f4, 0x1FFFC000, 0x1FFFC00F,
+     0x1FFF0000, 0x1FFF7800, 0},
+    {0x433, "STM32F401xD(E)", 0x20003000, 0x20018000, 0x08000000, 0x08080000, 1, f2f4, 0x1FFFC000, 0x1FFFC00F,
+     0x1FFF0000, 0x1FFF7800, 0},
+    {0x458, "STM32F410xx", 0x20003000, 0x20008000, 0x08000000, 0x08020000, 1, f2f4, 0x1FFFC000, 0x1FFFC00F, 0x1FFF0000,
+     0x1FFF7800, 0},
+    {0x431, "STM32F411xx", 0x20003000, 0x20020000, 0x08000000, 0x08080000, 1, f2f4, 0x1FFFC000, 0x1FFFC00F, 0x1FFF0000,
+     0x1FFF7800, 0},
+    {0x421, "STM32F446xx", 0x20003000, 0x20020000, 0x08000000, 0x08080000, 1, f2f4, 0x1FFFC000, 0x1FFFC00F, 0x1FFF0000,
+     0x1FFF7800, 0},
+    {0x434, "STM32F469xx", 0x20003000, 0x20060000, 0x08000000, 0x08200000, 1, f4db, 0x1FFEC000, 0x1FFFC00F, 0x1FFF0000,
+     0x1FFF7800, 0},
+    /* F7 */
+    {0x449, "STM32F74xxx/75xxx", 0x20004000, 0x20050000, 0x08000000, 0x08100000, 1, f7, 0x1FFF0000, 0x1FFF001F,
+     0x1FF00000, 0x1FF0EDC0, 0},
+    /* L0 */
+    {0x425, "STM32L031xx/041xx", 0x20001000, 0x20002000, 0x08000000, 0x08008000, 32, p_128, 0x1FF80000, 0x1FF8001F,
+     0x1FF00000, 0x1FF01000, 0},
+    {0x417, "STM32L05xxx/06xxx", 0x20001000, 0x20002000, 0x08000000, 0x08010000, 32, p_128, 0x1FF80000, 0x1FF8001F,
+     0x1FF00000, 0x1FF01000, 0},
+    {0x447, "STM32L07xxx/08xxx", 0x20002000, 0x20005000, 0x08000000, 0x08030000, 32, p_128, 0x1FF80000, 0x1FF8001F,
+     0x1FF00000, 0x1FF02000, 0},
+    /* L1 */
+    {0x416, "STM32L1xxx6(8/B)", 0x20000800, 0x20004000, 0x08000000, 0x08020000, 16, p_256, 0x1FF80000, 0x1FF8001F,
+     0x1FF00000, 0x1FF01000, F_NO_ME},
+    {0x429, "STM32L1xxx6(8/B)A", 0x20001000, 0x20008000, 0x08000000, 0x08020000, 16, p_256, 0x1FF80000, 0x1FF8001F,
+     0x1FF00000, 0x1FF01000, 0},
+    {0x427, "STM32L1xxxC", 0x20001000, 0x20008000, 0x08000000, 0x08040000, 16, p_256, 0x1FF80000, 0x1FF8001F,
+     0x1FF00000, 0x1FF02000, 0},
+    {0x436, "STM32L1xxxD", 0x20001000, 0x2000C000, 0x08000000, 0x08060000, 16, p_256, 0x1FF80000, 0x1FF8009F,
+     0x1FF00000, 0x1FF02000, 0},
+    {0x437, "STM32L1xxxE", 0x20001000, 0x20014000, 0x08000000, 0x08080000, 16, p_256, 0x1FF80000, 0x1FF8009F,
+     0x1FF00000, 0x1FF02000, F_NO_ME},
+    /* L4 */
+    {0x415, "STM32L476xx/486xx", 0x20003100, 0x20018000, 0x08000000, 0x08100000, 1, p_2k, 0x1FFF7800, 0x1FFFF80F,
+     0x1FFF0000, 0x1FFF7000, 0},
+    /* These are not (yet) in AN2606: */
+    {0x641, "Medium_Density PL", 0x20000200, 0x20005000, 0x08000000, 0x08020000, 4, p_1k, 0x1FFFF800, 0x1FFFF80F,
+     0x1FFFF000, 0x1FFFF800, 0},
+    {0x9a8, "STM32W-128K", 0x20000200, 0x20002000, 0x08000000, 0x08020000, 4, p_1k, 0x08040800, 0x0804080F, 0x08040000,
+     0x08040800, 0},
+    {0x9b0, "STM32W-256K", 0x20000200, 0x20004000, 0x08000000, 0x08040000, 4, p_2k, 0x08040800, 0x0804080F, 0x08040000,
+     0x08040800, 0},
+    {0x0, "", 0x0, 0x0, 0x0, 0x0, 0x0, nullptr, 0x0, 0x0, 0x0, 0x0, 0x0},
+};
+
+}  // namespace shelly_dimmer
+}  // namespace esphome
+#endif

esphome/components/shelly_dimmer/light.py

@@ -0,0 +1,219 @@
+from pathlib import Path
+import hashlib
+import re
+import requests
+
+
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome import pins
+from esphome.components import light, sensor, uart
+from esphome.const import (
+    CONF_OUTPUT_ID,
+    CONF_GAMMA_CORRECT,
+    CONF_POWER,
+    CONF_VOLTAGE,
+    CONF_CURRENT,
+    CONF_VERSION,
+    CONF_URL,
+    CONF_UPDATE_INTERVAL,
+    UNIT_VOLT,
+    UNIT_AMPERE,
+    UNIT_WATT,
+    DEVICE_CLASS_POWER,
+    DEVICE_CLASS_VOLTAGE,
+)
+from esphome.core import HexInt, CORE
+
+DOMAIN = "shelly_dimmer"
+DEPENDENCIES = ["sensor", "uart"]
+
+shelly_dimmer_ns = cg.esphome_ns.namespace("shelly_dimmer")
+ShellyDimmer = shelly_dimmer_ns.class_(
+    "ShellyDimmer", light.LightOutput, cg.PollingComponent, uart.UARTDevice
+)
+
+CONF_FIRMWARE = "firmware"
+CONF_SHA256 = "sha256"
+CONF_UPDATE = "update"
+
+CONF_LEADING_EDGE = "leading_edge"
+CONF_WARMUP_BRIGHTNESS = "warmup_brightness"
+# CONF_WARMUP_TIME = "warmup_time"
+CONF_MIN_BRIGHTNESS = "min_brightness"
+CONF_MAX_BRIGHTNESS = "max_brightness"
+
+CONF_NRST_PIN = "nrst_pin"
+CONF_BOOT0_PIN = "boot0_pin"
+
+KNOWN_FIRMWARE = {
+    "51.5": (
+        "https://github.com/jamesturton/shelly-dimmer-stm32/releases/download/v51.5/shelly-dimmer-stm32_v51.5.bin",
+        "553fc1d78ed113227af7683eaa9c26189a961c4ea9a48000fb5aa8f8ac5d7b60",
+    ),
+    "51.6": (
+        "https://github.com/jamesturton/shelly-dimmer-stm32/releases/download/v51.6/shelly-dimmer-stm32_v51.6.bin",
+        "eda483e111c914723a33f5088f1397d5c0b19333db4a88dc965636b976c16c36",
+    ),
+}
+
+
+def parse_firmware_version(value):
+    match = re.match(r"(\d+).(\d+)", value)
+    if match is None:
+        raise ValueError(f"Not a valid version number {value}")
+    major = int(match[1])
+    minor = int(match[2])
+    return major, minor
+
+
+def get_firmware(value):
+    if not value[CONF_UPDATE]:
+        return None
+
+    def dl(url):
+        try:
+            req = requests.get(url)
+            req.raise_for_status()
+        except requests.exceptions.RequestException as e:
+            raise cv.Invalid(f"Could not download firmware file ({url}): {e}")
+
+        h = hashlib.new("sha256")
+        h.update(req.content)
+        return req.content, h.hexdigest()
+
+    url = value[CONF_URL]
+
+    if CONF_SHA256 in value:  # we have a hash, enable caching
+        path = (
+            Path(CORE.config_dir)
+            / ".esphome"
+            / DOMAIN
+            / (value[CONF_SHA256] + "_fw_stm.bin")
+        )
+
+        if not path.is_file():
+            firmware_data, dl_hash = dl(url)
+
+            if dl_hash != value[CONF_SHA256]:
+                raise cv.Invalid(
+                    f"Hash mismatch for {url}: {dl_hash} != {value[CONF_SHA256]}"
+                )
+
+            path.parent.mkdir(exist_ok=True, parents=True)
+            path.write_bytes(firmware_data)
+
+        else:
+            firmware_data = path.read_bytes()
+    else:  # no caching, download every time
+        firmware_data, dl_hash = dl(url)
+
+    return [HexInt(x) for x in firmware_data]
+
+
+def validate_firmware(value):
+    config = value.copy()
+    if CONF_URL not in config:
+        try:
+            config[CONF_URL], config[CONF_SHA256] = KNOWN_FIRMWARE[config[CONF_VERSION]]
+        except KeyError as e:
+            raise cv.Invalid(
+                f"Firmware {config[CONF_VERSION]} is unknown, please specify an '{CONF_URL}' ..."
+            ) from e
+    get_firmware(config)
+    return config
+
+
+def validate_sha256(value):
+    value = cv.string(value)
+    if not value.isalnum() or not len(value) == 64:
+        raise ValueError(f"Not a valid SHA256 hex string: {value}")
+    return value
+
+
+def validate_version(value):
+    parse_firmware_version(value)
+    return value
+
+
+CONFIG_SCHEMA = (
+    light.BRIGHTNESS_ONLY_LIGHT_SCHEMA.extend(
+        {
+            cv.GenerateID(CONF_OUTPUT_ID): cv.declare_id(ShellyDimmer),
+            cv.Optional(CONF_FIRMWARE, default="51.6"): cv.maybe_simple_value(
+                {
+                    cv.Optional(CONF_URL): cv.url,
+                    cv.Optional(CONF_SHA256): validate_sha256,
+                    cv.Required(CONF_VERSION): validate_version,
+                    cv.Optional(CONF_UPDATE, default=False): cv.boolean,
+                },
+                validate_firmware,  # converts a simple version key to generate the full url
+                key=CONF_VERSION,
+            ),
+            cv.Optional(CONF_NRST_PIN, default="GPIO5"): pins.gpio_output_pin_schema,
+            cv.Optional(CONF_BOOT0_PIN, default="GPIO4"): pins.gpio_output_pin_schema,
+            cv.Optional(CONF_LEADING_EDGE, default=False): cv.boolean,
+            cv.Optional(CONF_WARMUP_BRIGHTNESS, default=100): cv.uint16_t,
+            # cv.Optional(CONF_WARMUP_TIME, default=20): cv.uint16_t,
+            cv.Optional(CONF_MIN_BRIGHTNESS, default=0): cv.uint16_t,
+            cv.Optional(CONF_MAX_BRIGHTNESS, default=1000): cv.uint16_t,
+            cv.Optional(CONF_POWER): sensor.sensor_schema(
+                unit_of_measurement=UNIT_WATT,
+                accuracy_decimals=1,
+                device_class=DEVICE_CLASS_POWER,
+            ),
+            cv.Optional(CONF_VOLTAGE): sensor.sensor_schema(
+                unit_of_measurement=UNIT_VOLT,
+                accuracy_decimals=1,
+                device_class=DEVICE_CLASS_VOLTAGE,
+            ),
+            cv.Optional(CONF_CURRENT): sensor.sensor_schema(
+                unit_of_measurement=UNIT_AMPERE,
+                device_class=DEVICE_CLASS_POWER,
+                accuracy_decimals=2,
+            ),
+            # Change the default gamma_correct setting.
+            cv.Optional(CONF_GAMMA_CORRECT, default=1.0): cv.positive_float,
+        }
+    )
+    .extend(cv.polling_component_schema("10s"))
+    .extend(uart.UART_DEVICE_SCHEMA)
+)
+
+
+def to_code(config):
+    fw_hex = get_firmware(config[CONF_FIRMWARE])
+    fw_major, fw_minor = parse_firmware_version(config[CONF_FIRMWARE][CONF_VERSION])
+
+    if fw_hex is not None:
+        cg.add_define("USE_SHD_FIRMWARE_DATA", fw_hex)
+    cg.add_define("USE_SHD_FIRMWARE_MAJOR_VERSION", fw_major)
+    cg.add_define("USE_SHD_FIRMWARE_MINOR_VERSION", fw_minor)
+
+    var = cg.new_Pvariable(config[CONF_OUTPUT_ID])
+    yield cg.register_component(var, config)
+    config.pop(
+        CONF_UPDATE_INTERVAL
+    )  # drop UPDATE_INTERVAL as it does not apply to the light component
+
+    yield light.register_light(var, config)
+    yield uart.register_uart_device(var, config)
+
+    nrst_pin = yield cg.gpio_pin_expression(config[CONF_NRST_PIN])
+    cg.add(var.set_nrst_pin(nrst_pin))
+    boot0_pin = yield cg.gpio_pin_expression(config[CONF_BOOT0_PIN])
+    cg.add(var.set_boot0_pin(boot0_pin))
+
+    cg.add(var.set_leading_edge(config[CONF_LEADING_EDGE]))
+    cg.add(var.set_warmup_brightness(config[CONF_WARMUP_BRIGHTNESS]))
+    # cg.add(var.set_warmup_time(config[CONF_WARMUP_TIME]))
+    cg.add(var.set_min_brightness(config[CONF_MIN_BRIGHTNESS]))
+    cg.add(var.set_max_brightness(config[CONF_MAX_BRIGHTNESS]))
+
+    for key in [CONF_POWER, CONF_VOLTAGE, CONF_CURRENT]:
+        if key not in config:
+            continue
+
+        conf = config[key]
+        sens = yield sensor.new_sensor(conf)
+        cg.add(getattr(var, f"set_{key}_sensor")(sens))

esphome/components/shelly_dimmer/shelly_dimmer.cpp

@@ -0,0 +1,523 @@
+#include "esphome/core/defines.h"
+#include "esphome/core/helpers.h"
+
+#include "shelly_dimmer.h"
+#ifdef USE_SHD_FIRMWARE_DATA
+#include "stm32flash.h"
+#endif
+
+#ifndef USE_ESP_IDF
+#include <HardwareSerial.h>
+#endif
+
+#include <algorithm>
+#include <cstring>
+#include <memory>
+#include <numeric>
+
+namespace {
+
+constexpr char TAG[] = "shelly_dimmer";
+
+constexpr uint8_t SHELLY_DIMMER_ACK_TIMEOUT = 200;  // ms
+constexpr uint8_t SHELLY_DIMMER_MAX_RETRIES = 3;
+constexpr uint16_t SHELLY_DIMMER_MAX_BRIGHTNESS = 1000;  // 100%
+
+// Protocol framing.
+constexpr uint8_t SHELLY_DIMMER_PROTO_START_BYTE = 0x01;
+constexpr uint8_t SHELLY_DIMMER_PROTO_END_BYTE = 0x04;
+
+// Supported commands.
+constexpr uint8_t SHELLY_DIMMER_PROTO_CMD_SWITCH = 0x01;
+constexpr uint8_t SHELLY_DIMMER_PROTO_CMD_POLL = 0x10;
+constexpr uint8_t SHELLY_DIMMER_PROTO_CMD_VERSION = 0x11;
+constexpr uint8_t SHELLY_DIMMER_PROTO_CMD_SETTINGS = 0x20;
+
+// Command payload sizes.
+constexpr uint8_t SHELLY_DIMMER_PROTO_CMD_SWITCH_SIZE = 2;
+constexpr uint8_t SHELLY_DIMMER_PROTO_CMD_SETTINGS_SIZE = 10;
+constexpr uint8_t SHELLY_DIMMER_PROTO_MAX_FRAME_SIZE = 4 + 72 + 3;
+
+// STM Firmware
+#ifdef USE_SHD_FIRMWARE_DATA
+constexpr uint8_t STM_FIRMWARE[] PROGMEM = USE_SHD_FIRMWARE_DATA;
+constexpr uint32_t STM_FIRMWARE_SIZE_IN_BYTES = sizeof(STM_FIRMWARE);
+#endif
+
+// Scaling Constants
+constexpr float POWER_SCALING_FACTOR = 880373;
+constexpr float VOLTAGE_SCALING_FACTOR = 347800;
+constexpr float CURRENT_SCALING_FACTOR = 1448;
+
+// Esentially std::size() for pre c++17
+template<typename T, size_t N> constexpr size_t size(const T (&/*unused*/)[N]) noexcept { return N; }
+
+}  // Anonymous namespace
+
+namespace esphome {
+namespace shelly_dimmer {
+
+/// Computes a crappy checksum as defined by the Shelly Dimmer protocol.
+uint16_t shelly_dimmer_checksum(const uint8_t *buf, int len) {
+  return std::accumulate<decltype(buf), uint16_t>(buf, buf + len, 0);
+}
+
+void ShellyDimmer::setup() {
+  this->pin_nrst_->setup();
+  this->pin_boot0_->setup();
+
+  ESP_LOGI(TAG, "Initializing Shelly Dimmer...");
+
+  // Reset the STM32 and check the firmware version.
+  for (int i = 0; i < 2; i++) {
+    this->reset_normal_boot_();
+    this->send_command_(SHELLY_DIMMER_PROTO_CMD_VERSION, nullptr, 0);
+    ESP_LOGI(TAG, "STM32 current firmware version: %d.%d, desired version: %d.%d", this->version_major_,
+             this->version_minor_, USE_SHD_FIRMWARE_MAJOR_VERSION, USE_SHD_FIRMWARE_MINOR_VERSION);
+    if (this->version_major_ != USE_SHD_FIRMWARE_MAJOR_VERSION ||
+        this->version_minor_ != USE_SHD_FIRMWARE_MINOR_VERSION) {
+#ifdef USE_SHD_FIRMWARE_DATA
+      // Update firmware if needed.
+      ESP_LOGW(TAG, "Unsupported STM32 firmware version, flashing");
+      if (i > 0) {
+        // Upgrade was already performed but the reported version is still not right.
+        ESP_LOGE(TAG, "STM32 firmware upgrade already performed, but version is still incorrect");
+        this->mark_failed();
+        return;
+      }
+
+      if (!this->upgrade_firmware_()) {
+        ESP_LOGW(TAG, "Failed to upgrade firmware");
+        this->mark_failed();
+        return;
+      }
+
+      // Firmware upgrade completed, do the checks again.
+      continue;
+#else
+      ESP_LOGW(TAG, "Firmware version mismatch, put 'update: true' in the yaml to flash an update.");
+      this->mark_failed();
+      return;
+#endif
+    }
+    break;
+  }
+
+  this->send_settings_();
+  // Do an immediate poll to refresh current state.
+  this->send_command_(SHELLY_DIMMER_PROTO_CMD_POLL, nullptr, 0);
+
+  this->ready_ = true;
+}
+
+void ShellyDimmer::update() { this->send_command_(SHELLY_DIMMER_PROTO_CMD_POLL, nullptr, 0); }
+
+void ShellyDimmer::dump_config() {
+  ESP_LOGCONFIG(TAG, "ShellyDimmer:");
+  LOG_PIN("  NRST Pin: ", this->pin_nrst_);
+  LOG_PIN("  BOOT0 Pin: ", this->pin_boot0_);
+
+  ESP_LOGCONFIG(TAG, "  Leading Edge: %s", YESNO(this->leading_edge_));
+  ESP_LOGCONFIG(TAG, "  Warmup Brightness: %d", this->warmup_brightness_);
+  // ESP_LOGCONFIG(TAG, "  Warmup Time: %d", this->warmup_time_);
+  // ESP_LOGCONFIG(TAG, "  Fade Rate: %d", this->fade_rate_);
+  ESP_LOGCONFIG(TAG, "  Minimum Brightness: %d", this->min_brightness_);
+  ESP_LOGCONFIG(TAG, "  Maximum Brightness: %d", this->max_brightness_);
+
+  LOG_UPDATE_INTERVAL(this);
+
+  ESP_LOGCONFIG(TAG, "  STM32 current firmware version: %d.%d ", this->version_major_, this->version_minor_);
+  ESP_LOGCONFIG(TAG, "  STM32 required firmware version: %d.%d", USE_SHD_FIRMWARE_MAJOR_VERSION,
+                USE_SHD_FIRMWARE_MINOR_VERSION);
+
+  if (this->version_major_ != USE_SHD_FIRMWARE_MAJOR_VERSION ||
+      this->version_minor_ != USE_SHD_FIRMWARE_MINOR_VERSION) {
+    ESP_LOGE(TAG, "  Firmware version mismatch, put 'update: true' in the yaml to flash an update.");
+  }
+}
+
+void ShellyDimmer::write_state(light::LightState *state) {
+  if (!this->ready_) {
+    return;
+  }
+
+  float brightness;
+  state->current_values_as_brightness(&brightness);
+
+  const uint16_t brightness_int = this->convert_brightness_(brightness);
+  if (brightness_int == this->brightness_) {
+    ESP_LOGV(TAG, "Not sending unchanged value");
+    return;
+  }
+  ESP_LOGD(TAG, "Brightness update: %d (raw: %f)", brightness_int, brightness);
+
+  this->send_brightness_(brightness_int);
+}
+#ifdef USE_SHD_FIRMWARE_DATA
+bool ShellyDimmer::upgrade_firmware_() {
+  ESP_LOGW(TAG, "Starting STM32 firmware upgrade");
+  this->reset_dfu_boot_();
+
+  // Cleanup with RAII
+  auto stm32 = stm32_init(this, STREAM_SERIAL, 1);
+
+  if (!stm32) {
+    ESP_LOGW(TAG, "Failed to initialize STM32");
+    return false;
+  }
+
+  // Erase STM32 flash.
+  if (stm32_erase_memory(stm32, 0, STM32_MASS_ERASE) != STM32_ERR_OK) {
+    ESP_LOGW(TAG, "Failed to erase STM32 flash memory");
+    return false;
+  }
+
+  static constexpr uint32_t BUFFER_SIZE = 256;
+
+  // Copy the STM32 firmware over in 256-byte chunks. Note that the firmware is stored
+  // in flash memory so all accesses need to be 4-byte aligned.
+  uint8_t buffer[BUFFER_SIZE];
+  const uint8_t *p = STM_FIRMWARE;
+  uint32_t offset = 0;
+  uint32_t addr = stm32->dev->fl_start;
+  const uint32_t end = addr + STM_FIRMWARE_SIZE_IN_BYTES;
+
+  while (addr < end && offset < STM_FIRMWARE_SIZE_IN_BYTES) {
+    const uint32_t left_of_buffer = std::min(end - addr, BUFFER_SIZE);
+    const uint32_t len = std::min(left_of_buffer, STM_FIRMWARE_SIZE_IN_BYTES - offset);
+
+    if (len == 0) {
+      break;
+    }
+
+    std::memcpy(buffer, p, BUFFER_SIZE);
+    p += BUFFER_SIZE;
+
+    if (stm32_write_memory(stm32, addr, buffer, len) != STM32_ERR_OK) {
+      ESP_LOGW(TAG, "Failed to write to STM32 flash memory");
+      return false;
+    }
+
+    addr += len;
+    offset += len;
+  }
+
+  ESP_LOGI(TAG, "STM32 firmware upgrade successful");
+
+  return true;
+}
+#endif
+
+uint16_t ShellyDimmer::convert_brightness_(float brightness) {
+  // Special case for zero as only zero means turn off completely.
+  if (brightness == 0.0) {
+    return 0;
+  }
+
+  return remap<uint16_t, float>(brightness, 0.0f, 1.0f, this->min_brightness_, this->max_brightness_);
+}
+
+void ShellyDimmer::send_brightness_(uint16_t brightness) {
+  const uint8_t payload[] = {
+      // Brightness (%) * 10.
+      static_cast<uint8_t>(brightness & 0xff),
+      static_cast<uint8_t>(brightness >> 8),
+  };
+  static_assert(size(payload) == SHELLY_DIMMER_PROTO_CMD_SWITCH_SIZE, "Invalid payload size");
+
+  this->send_command_(SHELLY_DIMMER_PROTO_CMD_SWITCH, payload, SHELLY_DIMMER_PROTO_CMD_SWITCH_SIZE);
+
+  this->brightness_ = brightness;
+}
+
+void ShellyDimmer::send_settings_() {
+  const uint16_t fade_rate = std::min(uint16_t{100}, this->fade_rate_);
+
+  float brightness = 0.0;
+  if (this->state_ != nullptr) {
+    this->state_->current_values_as_brightness(&brightness);
+  }
+  const uint16_t brightness_int = this->convert_brightness_(brightness);
+  ESP_LOGD(TAG, "Brightness update: %d (raw: %f)", brightness_int, brightness);
+
+  const uint8_t payload[] = {
+      // Brightness (%) * 10.
+      static_cast<uint8_t>(brightness_int & 0xff),
+      static_cast<uint8_t>(brightness_int >> 8),
+      // Leading / trailing edge [0x01 = leading, 0x02 = trailing].
+      this->leading_edge_ ? uint8_t{0x01} : uint8_t{0x02},
+      0x00,
+      // Fade rate.
+      static_cast<uint8_t>(fade_rate & 0xff),
+      static_cast<uint8_t>(fade_rate >> 8),
+      // Warmup brightness.
+      static_cast<uint8_t>(this->warmup_brightness_ & 0xff),
+      static_cast<uint8_t>(this->warmup_brightness_ >> 8),
+      // Warmup time.
+      static_cast<uint8_t>(this->warmup_time_ & 0xff),
+      static_cast<uint8_t>(this->warmup_time_ >> 8),
+  };
+  static_assert(size(payload) == SHELLY_DIMMER_PROTO_CMD_SETTINGS_SIZE, "Invalid payload size");
+
+  this->send_command_(SHELLY_DIMMER_PROTO_CMD_SETTINGS, payload, SHELLY_DIMMER_PROTO_CMD_SETTINGS_SIZE);
+
+  // Also send brightness separately as it is ignored above.
+  this->send_brightness_(brightness_int);
+}
+
+bool ShellyDimmer::send_command_(uint8_t cmd, const uint8_t *const payload, uint8_t len) {
+  ESP_LOGD(TAG, "Sending command: 0x%02x (%d bytes) payload 0x%s", cmd, len, format_hex(payload, len).c_str());
+
+  // Prepare a command frame.
+  uint8_t frame[SHELLY_DIMMER_PROTO_MAX_FRAME_SIZE];
+  const size_t frame_len = this->frame_command_(frame, cmd, payload, len);
+
+  // Write the frame and wait for acknowledgement.
+  int retries = SHELLY_DIMMER_MAX_RETRIES;
+  while (retries--) {
+    this->write_array(frame, frame_len);
+    this->flush();
+
+    ESP_LOGD(TAG, "Command sent, waiting for reply");
+    const uint32_t tx_time = millis();
+    while (millis() - tx_time < SHELLY_DIMMER_ACK_TIMEOUT) {
+      if (this->read_frame_()) {
+        return true;
+      }
+      delay(1);
+    }
+    ESP_LOGW(TAG, "Timeout while waiting for reply");
+  }
+  ESP_LOGW(TAG, "Failed to send command");
+  return false;
+}
+
+size_t ShellyDimmer::frame_command_(uint8_t *data, uint8_t cmd, const uint8_t *const payload, size_t len) {
+  size_t pos = 0;
+
+  // Generate a frame.
+  data[0] = SHELLY_DIMMER_PROTO_START_BYTE;
+  data[1] = ++this->seq_;
+  data[2] = cmd;
+  data[3] = len;
+  pos += 4;
+
+  if (payload != nullptr) {
+    std::memcpy(data + 4, payload, len);
+    pos += len;
+  }
+
+  // Calculate checksum for the payload.
+  const uint16_t csum = shelly_dimmer_checksum(data + 1, 3 + len);
+  data[pos++] = static_cast<uint8_t>(csum >> 8);
+  data[pos++] = static_cast<uint8_t>(csum & 0xff);
+  data[pos++] = SHELLY_DIMMER_PROTO_END_BYTE;
+  return pos;
+}
+
+int ShellyDimmer::handle_byte_(uint8_t c) {
+  const uint8_t pos = this->buffer_pos_;
+
+  if (pos == 0) {
+    // Must be start byte.
+    return c == SHELLY_DIMMER_PROTO_START_BYTE ? 1 : -1;
+  } else if (pos < 4) {
+    // Header.
+    return 1;
+  }
+
+  // Decode payload length from header.
+  const uint8_t payload_len = this->buffer_[3];
+  if ((4 + payload_len + 3) > SHELLY_DIMMER_BUFFER_SIZE) {
+    return -1;
+  }
+
+  if (pos < 4 + payload_len + 1) {
+    // Payload.
+    return 1;
+  }
+
+  if (pos == 4 + payload_len + 1) {
+    // Verify checksum.
+    const uint16_t csum = (this->buffer_[pos - 1] << 8 | c);
+    const uint16_t csum_verify = shelly_dimmer_checksum(&this->buffer_[1], 3 + payload_len);
+    if (csum != csum_verify) {
+      return -1;
+    }
+    return 1;
+  }
+
+  if (pos == 4 + payload_len + 2) {
+    // Must be end byte.
+    return c == SHELLY_DIMMER_PROTO_END_BYTE ? 0 : -1;
+  }
+  return -1;
+}
+
+bool ShellyDimmer::read_frame_() {
+  while (this->available()) {
+    const uint8_t c = this->read();
+    this->buffer_[this->buffer_pos_] = c;
+
+    ESP_LOGV(TAG, "Read byte: 0x%02x (pos %d)", c, this->buffer_pos_);
+
+    switch (this->handle_byte_(c)) {
+      case 0: {
+        // Frame successfully received.
+        this->handle_frame_();
+        this->buffer_pos_ = 0;
+        return true;
+      }
+      case -1: {
+        // Failure.
+        this->buffer_pos_ = 0;
+        break;
+      }
+      case 1: {
+        // Need more data.
+        this->buffer_pos_++;
+        break;
+      }
+    }
+  }
+  return false;
+}
+
+bool ShellyDimmer::handle_frame_() {
+  const uint8_t seq = this->buffer_[1];
+  const uint8_t cmd = this->buffer_[2];
+  const uint8_t payload_len = this->buffer_[3];
+
+  ESP_LOGD(TAG, "Got frame: 0x%02x", cmd);
+
+  // Compare with expected identifier as the frame is always a response to
+  // our previously sent command.
+  if (seq != this->seq_) {
+    return false;
+  }
+
+  const uint8_t *payload = &this->buffer_[4];
+
+  // Handle response.
+  switch (cmd) {
+    case SHELLY_DIMMER_PROTO_CMD_POLL: {
+      if (payload_len < 16) {
+        return false;
+      }
+
+      const uint8_t hw_version = payload[0];
+      // payload[1] is unused.
+      const uint16_t brightness = encode_uint16(payload[3], payload[2]);
+
+      const uint32_t power_raw = encode_uint32(payload[7], payload[6], payload[5], payload[4]);
+
+      const uint32_t voltage_raw = encode_uint32(payload[11], payload[10], payload[9], payload[8]);
+
+      const uint32_t current_raw = encode_uint32(payload[15], payload[14], payload[13], payload[12]);
+
+      const uint16_t fade_rate = payload[16];
+
+      float power = 0;
+      if (power_raw > 0) {
+        power = POWER_SCALING_FACTOR / static_cast<float>(power_raw);
+      }
+
+      float voltage = 0;
+      if (voltage_raw > 0) {
+        voltage = VOLTAGE_SCALING_FACTOR / static_cast<float>(voltage_raw);
+      }
+
+      float current = 0;
+      if (current_raw > 0) {
+        current = CURRENT_SCALING_FACTOR / static_cast<float>(current_raw);
+      }
+
+      ESP_LOGI(TAG, "Got dimmer data:");
+      ESP_LOGI(TAG, "  HW version: %d", hw_version);
+      ESP_LOGI(TAG, "  Brightness: %d", brightness);
+      ESP_LOGI(TAG, "  Fade rate:  %d", fade_rate);
+      ESP_LOGI(TAG, "  Power:      %f W", power);
+      ESP_LOGI(TAG, "  Voltage:    %f V", voltage);
+      ESP_LOGI(TAG, "  Current:    %f A", current);
+
+      // Update sensors.
+      if (this->power_sensor_ != nullptr) {
+        this->power_sensor_->publish_state(power);
+      }
+      if (this->voltage_sensor_ != nullptr) {
+        this->voltage_sensor_->publish_state(voltage);
+      }
+      if (this->current_sensor_ != nullptr) {
+        this->current_sensor_->publish_state(current);
+      }
+
+      return true;
+    }
+    case SHELLY_DIMMER_PROTO_CMD_VERSION: {
+      if (payload_len < 2) {
+        return false;
+      }
+
+      this->version_minor_ = payload[0];
+      this->version_major_ = payload[1];
+      return true;
+    }
+    case SHELLY_DIMMER_PROTO_CMD_SWITCH:
+    case SHELLY_DIMMER_PROTO_CMD_SETTINGS: {
+      return !(payload_len < 1 || payload[0] != 0x01);
+    }
+    default: {
+      return false;
+    }
+  }
+}
+
+void ShellyDimmer::reset_(bool boot0) {
+  ESP_LOGD(TAG, "Reset STM32, boot0=%d", boot0);
+
+  this->pin_boot0_->digital_write(boot0);
+  this->pin_nrst_->digital_write(false);
+
+  // Wait 50ms for the STM32 to reset.
+  delay(50);  // NOLINT
+
+  // Clear receive buffer.
+  while (this->available()) {
+    this->read();
+  }
+
+  this->pin_nrst_->digital_write(true);
+  // Wait 50ms for the STM32 to boot.
+  delay(50);  // NOLINT
+
+  ESP_LOGD(TAG, "Reset STM32 done");
+}
+
+void ShellyDimmer::reset_normal_boot_() {
+  // set NONE parity in normal mode
+
+#ifndef USE_ESP_IDF  // workaround for reconfiguring the uart
+  Serial.end();
+  Serial.begin(115200, SERIAL_8N1);
+  Serial.flush();
+#endif
+
+  this->flush();
+  this->reset_(false);
+}
+
+void ShellyDimmer::reset_dfu_boot_() {
+  // set EVEN parity in bootloader mode
+
+#ifndef USE_ESP_IDF  // workaround for reconfiguring the uart
+  Serial.end();
+  Serial.begin(115200, SERIAL_8E1);
+  Serial.flush();
+#endif
+
+  this->flush();
+  this->reset_(true);
+}
+
+}  // namespace shelly_dimmer
+}  // namespace esphome

esphome/components/shelly_dimmer/shelly_dimmer.h

@@ -0,0 +1,117 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/core/log.h"
+#include "esphome/components/light/light_output.h"
+#include "esphome/components/sensor/sensor.h"
+#include "esphome/components/uart/uart.h"
+
+#include <array>
+
+namespace esphome {
+namespace shelly_dimmer {
+
+class ShellyDimmer : public PollingComponent, public light::LightOutput, public uart::UARTDevice {
+ private:
+  static constexpr uint16_t SHELLY_DIMMER_BUFFER_SIZE = 256;
+
+ public:
+  float get_setup_priority() const override { return setup_priority::LATE; }
+
+  void setup() override;
+  void update() override;
+  void dump_config() override;
+
+  light::LightTraits get_traits() override {
+    auto traits = light::LightTraits();
+    traits.set_supported_color_modes({light::ColorMode::BRIGHTNESS});
+    return traits;
+  }
+
+  void setup_state(light::LightState *state) override { this->state_ = state; }
+  void write_state(light::LightState *state) override;
+
+  void set_nrst_pin(GPIOPin *nrst_pin) { this->pin_nrst_ = nrst_pin; }
+  void set_boot0_pin(GPIOPin *boot0_pin) { this->pin_boot0_ = boot0_pin; }
+
+  void set_leading_edge(bool leading_edge) { this->leading_edge_ = leading_edge; }
+  void set_warmup_brightness(uint16_t warmup_brightness) { this->warmup_brightness_ = warmup_brightness; }
+  void set_warmup_time(uint16_t warmup_time) { this->warmup_time_ = warmup_time; }
+  void set_fade_rate(uint16_t fade_rate) { this->fade_rate_ = fade_rate; }
+  void set_min_brightness(uint16_t min_brightness) { this->min_brightness_ = min_brightness; }
+  void set_max_brightness(uint16_t max_brightness) { this->max_brightness_ = max_brightness; }
+
+  void set_power_sensor(sensor::Sensor *power_sensor) { this->power_sensor_ = power_sensor; }
+  void set_voltage_sensor(sensor::Sensor *voltage_sensor) { this->voltage_sensor_ = voltage_sensor; }
+  void set_current_sensor(sensor::Sensor *current_sensor) { this->current_sensor_ = current_sensor; }
+
+ protected:
+  GPIOPin *pin_nrst_;
+  GPIOPin *pin_boot0_;
+
+  // Frame parser state.
+  uint8_t seq_{0};
+  std::array<uint8_t, SHELLY_DIMMER_BUFFER_SIZE> buffer_;
+  uint8_t buffer_pos_{0};
+
+  // Firmware version.
+  uint8_t version_major_;
+  uint8_t version_minor_;
+
+  // Configuration.
+  bool leading_edge_{false};
+  uint16_t warmup_brightness_{100};
+  uint16_t warmup_time_{20};
+  uint16_t fade_rate_{0};
+  uint16_t min_brightness_{0};
+  uint16_t max_brightness_{1000};
+
+  light::LightState *state_{nullptr};
+  sensor::Sensor *power_sensor_{nullptr};
+  sensor::Sensor *voltage_sensor_{nullptr};
+  sensor::Sensor *current_sensor_{nullptr};
+
+  bool ready_{false};
+  uint16_t brightness_;
+
+  /// Convert relative brightness into a dimmer brightness value.
+  uint16_t convert_brightness_(float brightness);
+
+  /// Sends the given brightness value.
+  void send_brightness_(uint16_t brightness);
+
+  /// Sends dimmer configuration.
+  void send_settings_();
+
+  /// Performs a firmware upgrade.
+  bool upgrade_firmware_();
+
+  /// Sends a command and waits for an acknowledgement.
+  bool send_command_(uint8_t cmd, const uint8_t *payload, uint8_t len);
+
+  /// Frames a given command payload.
+  size_t frame_command_(uint8_t *data, uint8_t cmd, const uint8_t *payload, size_t len);
+
+  /// Handles a single byte as part of a protocol frame.
+  ///
+  /// Returns -1 on failure, 0 when finished and 1 when more bytes needed.
+  int handle_byte_(uint8_t c);
+
+  /// Reads a response frame.
+  bool read_frame_();
+
+  /// Handles a complete frame.
+  bool handle_frame_();
+
+  /// Reset STM32 with the BOOT0 pin set to the given value.
+  void reset_(bool boot0);
+
+  /// Reset STM32 to boot the regular firmware.
+  void reset_normal_boot_();
+
+  /// Reset STM32 to boot into DFU mode to enable firmware upgrades.
+  void reset_dfu_boot_();
+};
+
+}  // namespace shelly_dimmer
+}  // namespace esphome

esphome/components/shelly_dimmer/stm32flash.cpp

@@ -0,0 +1,1064 @@
+/*
+ stm32flash - Open Source ST STM32 flash program for Arduino
+ Copyright 2010 Geoffrey McRae <geoff@spacevs.com>
+ Copyright 2012-2014 Tormod Volden <debian.tormod@gmail.com>
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2
+ of the License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*/
+
+#include "esphome/core/defines.h"
+#ifdef USE_SHD_FIRMWARE_DATA
+
+#include <cstdint>
+
+#include "stm32flash.h"
+#include "debug.h"
+
+#include "dev_table.h"
+#include "esphome/core/log.h"
+
+#include <algorithm>
+#include <memory>
+
+namespace {
+
+constexpr uint8_t STM32_ACK = 0x79;
+constexpr uint8_t STM32_NACK = 0x1F;
+constexpr uint8_t STM32_BUSY = 0x76;
+
+constexpr uint8_t STM32_CMD_INIT = 0x7F;
+constexpr uint8_t STM32_CMD_GET = 0x00;   /* get the version and command supported */
+constexpr uint8_t STM32_CMD_GVR = 0x01;   /* get version and read protection status */
+constexpr uint8_t STM32_CMD_GID = 0x02;   /* get ID */
+constexpr uint8_t STM32_CMD_RM = 0x11;    /* read memory */
+constexpr uint8_t STM32_CMD_GO = 0x21;    /* go */
+constexpr uint8_t STM32_CMD_WM = 0x31;    /* write memory */
+constexpr uint8_t STM32_CMD_WM_NS = 0x32; /* no-stretch write memory */
+constexpr uint8_t STM32_CMD_ER = 0x43;    /* erase */
+constexpr uint8_t STM32_CMD_EE = 0x44;    /* extended erase */
+constexpr uint8_t STM32_CMD_EE_NS = 0x45; /* extended erase no-stretch */
+constexpr uint8_t STM32_CMD_WP = 0x63;    /* write protect */
+constexpr uint8_t STM32_CMD_WP_NS = 0x64; /* write protect no-stretch */
+constexpr uint8_t STM32_CMD_UW = 0x73;    /* write unprotect */
+constexpr uint8_t STM32_CMD_UW_NS = 0x74; /* write unprotect no-stretch */
+constexpr uint8_t STM32_CMD_RP = 0x82;    /* readout protect */
+constexpr uint8_t STM32_CMD_RP_NS = 0x83; /* readout protect no-stretch */
+constexpr uint8_t STM32_CMD_UR = 0x92;    /* readout unprotect */
+constexpr uint8_t STM32_CMD_UR_NS = 0x93; /* readout unprotect no-stretch */
+constexpr uint8_t STM32_CMD_CRC = 0xA1;   /* compute CRC */
+constexpr uint8_t STM32_CMD_ERR = 0xFF;   /* not a valid command */
+
+constexpr uint32_t STM32_RESYNC_TIMEOUT = 35 * 1000;    /* milliseconds */
+constexpr uint32_t STM32_MASSERASE_TIMEOUT = 35 * 1000; /* milliseconds */
+constexpr uint32_t STM32_PAGEERASE_TIMEOUT = 5 * 1000;  /* milliseconds */
+constexpr uint32_t STM32_BLKWRITE_TIMEOUT = 1 * 1000;   /* milliseconds */
+constexpr uint32_t STM32_WUNPROT_TIMEOUT = 1 * 1000;    /* milliseconds */
+constexpr uint32_t STM32_WPROT_TIMEOUT = 1 * 1000;      /* milliseconds */
+constexpr uint32_t STM32_RPROT_TIMEOUT = 1 * 1000;      /* milliseconds */
+constexpr uint32_t DEFAULT_TIMEOUT = 5 * 1000;          /* milliseconds */
+
+constexpr uint8_t STM32_CMD_GET_LENGTH = 17; /* bytes in the reply */
+
+/* Reset code for ARMv7-M (Cortex-M3) and ARMv6-M (Cortex-M0)
+ * see ARMv7-M or ARMv6-M Architecture Reference Manual (table B3-8)
+ * or "The definitive guide to the ARM Cortex-M3", section 14.4.
+ */
+constexpr uint8_t STM_RESET_CODE[] = {
+    0x01, 0x49,              // ldr     r1, [pc, #4] ; (<AIRCR_OFFSET>)
+    0x02, 0x4A,              // ldr     r2, [pc, #8] ; (<AIRCR_RESET_VALUE>)
+    0x0A, 0x60,              // str     r2, [r1, #0]
+    0xfe, 0xe7,              // endless: b endless
+    0x0c, 0xed, 0x00, 0xe0,  // .word 0xe000ed0c <AIRCR_OFFSET> = NVIC AIRCR register address
+    0x04, 0x00, 0xfa, 0x05   // .word 0x05fa0004 <AIRCR_RESET_VALUE> = VECTKEY | SYSRESETREQ
+};
+
+constexpr uint32_t STM_RESET_CODE_SIZE = sizeof(STM_RESET_CODE);
+
+/* RM0360, Empty check
+ * On STM32F070x6 and STM32F030xC devices only, internal empty check flag is
+ * implemented to allow easy programming of the virgin devices by the boot loader. This flag is
+ * used when BOOT0 pin is defining Main Flash memory as the target boot space. When the
+ * flag is set, the device is considered as empty and System memory (boot loader) is selected
+ * instead of the Main Flash as a boot space to allow user to program the Flash memory.
+ * This flag is updated only during Option bytes loading: it is set when the content of the
+ * address 0x08000 0000 is read as 0xFFFF FFFF, otherwise it is cleared. It means a power
+ * on or setting of OBL_LAUNCH bit in FLASH_CR register is needed to clear this flag after
+ * programming of a virgin device to execute user code after System reset.
+ */
+constexpr uint8_t STM_OBL_LAUNCH_CODE[] = {
+    0x01, 0x49,              // ldr     r1, [pc, #4] ; (<FLASH_CR>)
+    0x02, 0x4A,              // ldr     r2, [pc, #8] ; (<OBL_LAUNCH>)
+    0x0A, 0x60,              // str     r2, [r1, #0]
+    0xfe, 0xe7,              // endless: b endless
+    0x10, 0x20, 0x02, 0x40,  // address: FLASH_CR = 40022010
+    0x00, 0x20, 0x00, 0x00   // value: OBL_LAUNCH = 00002000
+};
+
+constexpr uint32_t STM_OBL_LAUNCH_CODE_SIZE = sizeof(STM_OBL_LAUNCH_CODE);
+
+constexpr char TAG[] = "stm32flash";
+
+}  // Anonymous namespace
+
+namespace esphome {
+namespace shelly_dimmer {
+
+namespace {
+
+int flash_addr_to_page_ceil(const stm32_unique_ptr &stm, uint32_t addr) {
+  if (!(addr >= stm->dev->fl_start && addr <= stm->dev->fl_end))
+    return 0;
+
+  int page = 0;
+  addr -= stm->dev->fl_start;
+  const auto *psize = stm->dev->fl_ps;
+
+  while (addr >= psize[0]) {
+    addr -= psize[0];
+    page++;
+    if (psize[1])
+      psize++;
+  }
+
+  return addr ? page + 1 : page;
+}
+
+stm32_err_t stm32_get_ack_timeout(const stm32_unique_ptr &stm, uint32_t timeout) {
+  auto *stream = stm->stream;
+  uint8_t rxbyte;
+
+  if (!(stm->flags & STREAM_OPT_RETRY))
+    timeout = 0;
+
+  if (timeout == 0)
+    timeout = DEFAULT_TIMEOUT;
+
+  const uint32_t start_time = millis();
+  do {
+    yield();
+    if (!stream->available()) {
+      if (millis() < start_time + timeout)
+        continue;
+      ESP_LOGD(TAG, "Failed to read ACK timeout=%i", timeout);
+      return STM32_ERR_UNKNOWN;
+    }
+
+    stream->read_byte(&rxbyte);
+
+    if (rxbyte == STM32_ACK)
+      return STM32_ERR_OK;
+    if (rxbyte == STM32_NACK)
+      return STM32_ERR_NACK;
+    if (rxbyte != STM32_BUSY) {
+      ESP_LOGD(TAG, "Got byte 0x%02x instead of ACK", rxbyte);
+      return STM32_ERR_UNKNOWN;
+    }
+  } while (true);
+}
+
+stm32_err_t stm32_get_ack(const stm32_unique_ptr &stm) { return stm32_get_ack_timeout(stm, 0); }
+
+stm32_err_t stm32_send_command_timeout(const stm32_unique_ptr &stm, const uint8_t cmd, const uint32_t timeout) {
+  auto *const stream = stm->stream;
+
+  static constexpr auto BUFFER_SIZE = 2;
+  const uint8_t buf[] = {
+      cmd,
+      static_cast<uint8_t>(cmd ^ 0xFF),
+  };
+  static_assert(sizeof(buf) == BUFFER_SIZE, "Buf expected to be 2 bytes");
+
+  stream->write_array(buf, BUFFER_SIZE);
+  stream->flush();
+
+  stm32_err_t s_err = stm32_get_ack_timeout(stm, timeout);
+  if (s_err == STM32_ERR_OK)
+    return STM32_ERR_OK;
+  if (s_err == STM32_ERR_NACK) {
+    ESP_LOGD(TAG, "Got NACK from device on command 0x%02x", cmd);
+  } else {
+    ESP_LOGD(TAG, "Unexpected reply from device on command 0x%02x", cmd);
+  }
+  return STM32_ERR_UNKNOWN;
+}
+
+stm32_err_t stm32_send_command(const stm32_unique_ptr &stm, const uint8_t cmd) {
+  return stm32_send_command_timeout(stm, cmd, 0);
+}
+
+/* if we have lost sync, send a wrong command and expect a NACK */
+stm32_err_t stm32_resync(const stm32_unique_ptr &stm) {
+  auto *const stream = stm->stream;
+  uint32_t t0 = millis();
+  auto t1 = t0;
+
+  static constexpr auto BUFFER_SIZE = 2;
+  const uint8_t buf[] = {
+      STM32_CMD_ERR,
+      static_cast<uint8_t>(STM32_CMD_ERR ^ 0xFF),
+  };
+  static_assert(sizeof(buf) == BUFFER_SIZE, "Buf expected to be 2 bytes");
+
+  uint8_t ack;
+  while (t1 < t0 + STM32_RESYNC_TIMEOUT) {
+    stream->write_array(buf, BUFFER_SIZE);
+    stream->flush();
+    if (!stream->read_array(&ack, 1)) {
+      t1 = millis();
+      continue;
+    }
+    if (ack == STM32_NACK)
+      return STM32_ERR_OK;
+    t1 = millis();
+  }
+  return STM32_ERR_UNKNOWN;
+}
+
+/*
+ * some command receive reply frame with variable length, and length is
+ * embedded in reply frame itself.
+ * We can guess the length, but if we guess wrong the protocol gets out
+ * of sync.
+ * Use resync for frame oriented interfaces (e.g. I2C) and byte-by-byte
+ * read for byte oriented interfaces (e.g. UART).
+ *
+ * to run safely, data buffer should be allocated for 256+1 bytes
+ *
+ * len is value of the first byte in the frame.
+ */
+stm32_err_t stm32_guess_len_cmd(const stm32_unique_ptr &stm, const uint8_t cmd, uint8_t *const data, unsigned int len) {
+  auto *const stream = stm->stream;
+
+  if (stm32_send_command(stm, cmd) != STM32_ERR_OK)
+    return STM32_ERR_UNKNOWN;
+  if (stm->flags & STREAM_OPT_BYTE) {
+    /* interface is UART-like */
+    if (!stream->read_array(data, 1))
+      return STM32_ERR_UNKNOWN;
+    len = data[0];
+    if (!stream->read_array(data + 1, len + 1))
+      return STM32_ERR_UNKNOWN;
+    return STM32_ERR_OK;
+  }
+
+  const auto ret = stream->read_array(data, len + 2);
+  if (ret && len == data[0])
+    return STM32_ERR_OK;
+  if (!ret) {
+    /* restart with only one byte */
+    if (stm32_resync(stm) != STM32_ERR_OK)
+      return STM32_ERR_UNKNOWN;
+    if (stm32_send_command(stm, cmd) != STM32_ERR_OK)
+      return STM32_ERR_UNKNOWN;
+    if (!stream->read_array(data, 1))
+      return STM32_ERR_UNKNOWN;
+  }
+
+  ESP_LOGD(TAG, "Re sync (len = %d)", data[0]);
+  if (stm32_resync(stm) != STM32_ERR_OK)
+    return STM32_ERR_UNKNOWN;
+
+  len = data[0];
+  if (stm32_send_command(stm, cmd) != STM32_ERR_OK)
+    return STM32_ERR_UNKNOWN;
+
+  if (!stream->read_array(data, len + 2))
+    return STM32_ERR_UNKNOWN;
+  return STM32_ERR_OK;
+}
+
+/*
+ * Some interface, e.g. UART, requires a specific init sequence to let STM32
+ * autodetect the interface speed.
+ * The sequence is only required one time after reset.
+ * This function sends the init sequence and, in case of timeout, recovers
+ * the interface.
+ */
+stm32_err_t stm32_send_init_seq(const stm32_unique_ptr &stm) {
+  auto *const stream = stm->stream;
+
+  stream->write_array(&STM32_CMD_INIT, 1);
+  stream->flush();
+
+  uint8_t byte;
+  bool ret = stream->read_array(&byte, 1);
+  if (ret && byte == STM32_ACK)
+    return STM32_ERR_OK;
+  if (ret && byte == STM32_NACK) {
+    /* We could get error later, but let's continue, for now. */
+    ESP_LOGD(TAG, "Warning: the interface was not closed properly.");
+    return STM32_ERR_OK;
+  }
+  if (!ret) {
+    ESP_LOGD(TAG, "Failed to init device.");
+    return STM32_ERR_UNKNOWN;
+  }
+
+  /*
+   * Check if previous STM32_CMD_INIT was taken as first byte
+   * of a command. Send a new byte, we should get back a NACK.
+   */
+  stream->write_array(&STM32_CMD_INIT, 1);
+  stream->flush();
+
+  ret = stream->read_array(&byte, 1);
+  if (ret && byte == STM32_NACK)
+    return STM32_ERR_OK;
+  ESP_LOGD(TAG, "Failed to init device.");
+  return STM32_ERR_UNKNOWN;
+}
+
+stm32_err_t stm32_mass_erase(const stm32_unique_ptr &stm) {
+  auto *const stream = stm->stream;
+
+  if (stm32_send_command(stm, stm->cmd->er) != STM32_ERR_OK) {
+    ESP_LOGD(TAG, "Can't initiate chip mass erase!");
+    return STM32_ERR_UNKNOWN;
+  }
+
+  /* regular erase (0x43) */
+  if (stm->cmd->er == STM32_CMD_ER) {
+    const auto s_err = stm32_send_command_timeout(stm, 0xFF, STM32_MASSERASE_TIMEOUT);
+    if (s_err != STM32_ERR_OK) {
+      return STM32_ERR_UNKNOWN;
+    }
+    return STM32_ERR_OK;
+  }
+
+  /* extended erase */
+  static constexpr auto BUFFER_SIZE = 3;
+  const uint8_t buf[] = {
+      0xFF,       /* 0xFFFF the magic number for mass erase */
+      0xFF, 0x00, /* checksum */
+  };
+  static_assert(sizeof(buf) == BUFFER_SIZE, "Expected the buffer to be 3 bytes");
+  stream->write_array(buf, 3);
+  stream->flush();
+
+  const auto s_err = stm32_get_ack_timeout(stm, STM32_MASSERASE_TIMEOUT);
+  if (s_err != STM32_ERR_OK) {
+    ESP_LOGD(TAG, "Mass erase failed. Try specifying the number of pages to be erased.");
+    return STM32_ERR_UNKNOWN;
+  }
+  return STM32_ERR_OK;
+}
+
+template<typename T> std::unique_ptr<T[], void (*)(T *memory)> malloc_array_raii(size_t size) {
+  // Could be constexpr in c++17
+  static const auto DELETOR = [](T *memory) {
+    free(memory);  // NOLINT
+  };
+  return std::unique_ptr<T[], decltype(DELETOR)>{static_cast<T *>(malloc(size)),  // NOLINT
+                                                 DELETOR};
+}
+
+stm32_err_t stm32_pages_erase(const stm32_unique_ptr &stm, const uint32_t spage, const uint32_t pages) {
+  auto *const stream = stm->stream;
+  uint8_t cs = 0;
+  int i = 0;
+
+  /* The erase command reported by the bootloader is either 0x43, 0x44 or 0x45 */
+  /* 0x44 is Extended Erase, a 2 byte based protocol and needs to be handled differently. */
+  /* 0x45 is clock no-stretching version of Extended Erase for I2C port. */
+  if (stm32_send_command(stm, stm->cmd->er) != STM32_ERR_OK) {
+    ESP_LOGD(TAG, "Can't initiate chip mass erase!");
+    return STM32_ERR_UNKNOWN;
+  }
+
+  /* regular erase (0x43) */
+  if (stm->cmd->er == STM32_CMD_ER) {
+    // Free memory with RAII
+    auto buf = malloc_array_raii<uint8_t>(1 + pages + 1);
+
+    if (!buf)
+      return STM32_ERR_UNKNOWN;
+
+    buf[i++] = pages - 1;
+    cs ^= (pages - 1);
+    for (auto pg_num = spage; pg_num < (pages + spage); pg_num++) {
+      buf[i++] = pg_num;
+      cs ^= pg_num;
+    }
+    buf[i++] = cs;
+    stream->write_array(&buf[0], i);
+    stream->flush();
+
+    const auto s_err = stm32_get_ack_timeout(stm, pages * STM32_PAGEERASE_TIMEOUT);
+    if (s_err != STM32_ERR_OK) {
+      return STM32_ERR_UNKNOWN;
+    }
+    return STM32_ERR_OK;
+  }
+
+  /* extended erase */
+
+  // Free memory with RAII
+  auto buf = malloc_array_raii<uint8_t>(2 + 2 * pages + 1);
+
+  if (!buf)
+    return STM32_ERR_UNKNOWN;
+
+  /* Number of pages to be erased - 1, two bytes, MSB first */
+  uint8_t pg_byte = (pages - 1) >> 8;
+  buf[i++] = pg_byte;
+  cs ^= pg_byte;
+  pg_byte = (pages - 1) & 0xFF;
+  buf[i++] = pg_byte;
+  cs ^= pg_byte;
+
+  for (auto pg_num = spage; pg_num < spage + pages; pg_num++) {
+    pg_byte = pg_num >> 8;
+    cs ^= pg_byte;
+    buf[i++] = pg_byte;
+    pg_byte = pg_num & 0xFF;
+    cs ^= pg_byte;
+    buf[i++] = pg_byte;
+  }
+  buf[i++] = cs;
+  stream->write_array(&buf[0], i);
+  stream->flush();
+
+  const auto s_err = stm32_get_ack_timeout(stm, pages * STM32_PAGEERASE_TIMEOUT);
+  if (s_err != STM32_ERR_OK) {
+    ESP_LOGD(TAG, "Page-by-page erase failed. Check the maximum pages your device supports.");
+    return STM32_ERR_UNKNOWN;
+  }
+
+  return STM32_ERR_OK;
+}
+
+template<typename T> stm32_err_t stm32_check_ack_timeout(const stm32_err_t s_err, const T &&log) {
+  switch (s_err) {
+    case STM32_ERR_OK:
+      return STM32_ERR_OK;
+    case STM32_ERR_NACK:
+      log();
+      // TODO: c++17 [[fallthrough]]
+      /* fallthrough */
+    default:
+      return STM32_ERR_UNKNOWN;
+  }
+}
+
+/* detect CPU endian */
+bool cpu_le() {
+  static constexpr int N = 1;
+
+  // returns true if little endian
+  return *reinterpret_cast<const char *>(&N) == 1;
+}
+
+uint32_t le_u32(const uint32_t v) {
+  if (!cpu_le())
+    return ((v & 0xFF000000) >> 24) | ((v & 0x00FF0000) >> 8) | ((v & 0x0000FF00) << 8) | ((v & 0x000000FF) << 24);
+  return v;
+}
+
+template<size_t N> void populate_buffer_with_address(uint8_t (&buffer)[N], uint32_t address) {
+  buffer[0] = static_cast<uint8_t>(address >> 24);
+  buffer[1] = static_cast<uint8_t>((address >> 16) & 0xFF);
+  buffer[2] = static_cast<uint8_t>((address >> 8) & 0xFF);
+  buffer[3] = static_cast<uint8_t>(address & 0xFF);
+  buffer[4] = static_cast<uint8_t>(buffer[0] ^ buffer[1] ^ buffer[2] ^ buffer[3]);
+}
+
+template<typename T> stm32_unique_ptr make_stm32_with_deletor(T ptr) {
+  static const auto CLOSE = [](stm32_t *stm32) {
+    if (stm32) {
+      free(stm32->cmd);  // NOLINT
+    }
+    free(stm32);  // NOLINT
+  };
+
+  // Cleanup with RAII
+  return std::unique_ptr<stm32_t, decltype(CLOSE)>{ptr, CLOSE};
+}
+
+}  // Anonymous namespace
+
+}  // namespace shelly_dimmer
+}  // namespace esphome
+
+namespace esphome {
+namespace shelly_dimmer {
+
+/* find newer command by higher code */
+#define newer(prev, a) (((prev) == STM32_CMD_ERR) ? (a) : (((prev) > (a)) ? (prev) : (a)))
+
+stm32_unique_ptr stm32_init(uart::UARTDevice *stream, const uint8_t flags, const char init) {
+  uint8_t buf[257];
+
+  auto stm = make_stm32_with_deletor(static_cast<stm32_t *>(calloc(sizeof(stm32_t), 1)));  // NOLINT
+
+  if (!stm) {
+    return make_stm32_with_deletor(nullptr);
+  }
+  stm->stream = stream;
+  stm->flags = flags;
+
+  stm->cmd = static_cast<stm32_cmd_t *>(malloc(sizeof(stm32_cmd_t)));  // NOLINT
+  if (!stm->cmd) {
+    return make_stm32_with_deletor(nullptr);
+  }
+  memset(stm->cmd, STM32_CMD_ERR, sizeof(stm32_cmd_t));
+
+  if ((stm->flags & STREAM_OPT_CMD_INIT) && init) {
+    if (stm32_send_init_seq(stm) != STM32_ERR_OK)
+      return make_stm32_with_deletor(nullptr);
+  }
+
+  /* get the version and read protection status  */
+  if (stm32_send_command(stm, STM32_CMD_GVR) != STM32_ERR_OK) {
+    return make_stm32_with_deletor(nullptr);
+  }
+
+  /* From AN, only UART bootloader returns 3 bytes */
+  {
+    const auto len = (stm->flags & STREAM_OPT_GVR_ETX) ? 3 : 1;
+    if (!stream->read_array(buf, len))
+      return make_stm32_with_deletor(nullptr);
+
+    stm->version = buf[0];
+    stm->option1 = (stm->flags & STREAM_OPT_GVR_ETX) ? buf[1] : 0;
+    stm->option2 = (stm->flags & STREAM_OPT_GVR_ETX) ? buf[2] : 0;
+    if (stm32_get_ack(stm) != STM32_ERR_OK) {
+      return make_stm32_with_deletor(nullptr);
+    }
+  }
+
+  {
+    const auto len = ([&]() {
+      /* get the bootloader information */
+      if (stm->cmd_get_reply) {
+        for (auto i = 0; stm->cmd_get_reply[i].length; ++i) {
+          if (stm->version == stm->cmd_get_reply[i].version) {
+            return stm->cmd_get_reply[i].length;
+          }
+        }
+      }
+
+      return STM32_CMD_GET_LENGTH;
+    })();
+
+    if (stm32_guess_len_cmd(stm, STM32_CMD_GET, buf, len) != STM32_ERR_OK)
+      return make_stm32_with_deletor(nullptr);
+  }
+
+  const auto stop = buf[0] + 1;
+  stm->bl_version = buf[1];
+  int new_cmds = 0;
+  for (auto i = 1; i < stop; ++i) {
+    const auto val = buf[i + 1];
+    switch (val) {
+      case STM32_CMD_GET:
+        stm->cmd->get = val;
+        break;
+      case STM32_CMD_GVR:
+        stm->cmd->gvr = val;
+        break;
+      case STM32_CMD_GID:
+        stm->cmd->gid = val;
+        break;
+      case STM32_CMD_RM:
+        stm->cmd->rm = val;
+        break;
+      case STM32_CMD_GO:
+        stm->cmd->go = val;
+        break;
+      case STM32_CMD_WM:
+      case STM32_CMD_WM_NS:
+        stm->cmd->wm = newer(stm->cmd->wm, val);
+        break;
+      case STM32_CMD_ER:
+      case STM32_CMD_EE:
+      case STM32_CMD_EE_NS:
+        stm->cmd->er = newer(stm->cmd->er, val);
+        break;
+      case STM32_CMD_WP:
+      case STM32_CMD_WP_NS:
+        stm->cmd->wp = newer(stm->cmd->wp, val);
+        break;
+      case STM32_CMD_UW:
+      case STM32_CMD_UW_NS:
+        stm->cmd->uw = newer(stm->cmd->uw, val);
+        break;
+      case STM32_CMD_RP:
+      case STM32_CMD_RP_NS:
+        stm->cmd->rp = newer(stm->cmd->rp, val);
+        break;
+      case STM32_CMD_UR:
+      case STM32_CMD_UR_NS:
+        stm->cmd->ur = newer(stm->cmd->ur, val);
+        break;
+      case STM32_CMD_CRC:
+        stm->cmd->crc = newer(stm->cmd->crc, val);
+        break;
+      default:
+        if (new_cmds++ == 0) {
+          ESP_LOGD(TAG, "GET returns unknown commands (0x%2x", val);
+        } else {
+          ESP_LOGD(TAG, ", 0x%2x", val);
+        }
+    }
+  }
+  if (new_cmds)
+    ESP_LOGD(TAG, ")");
+  if (stm32_get_ack(stm) != STM32_ERR_OK) {
+    return make_stm32_with_deletor(nullptr);
+  }
+
+  if (stm->cmd->get == STM32_CMD_ERR || stm->cmd->gvr == STM32_CMD_ERR || stm->cmd->gid == STM32_CMD_ERR) {
+    ESP_LOGD(TAG, "Error: bootloader did not returned correct information from GET command");
+    return make_stm32_with_deletor(nullptr);
+  }
+
+  /* get the device ID */
+  if (stm32_guess_len_cmd(stm, stm->cmd->gid, buf, 1) != STM32_ERR_OK) {
+    return make_stm32_with_deletor(nullptr);
+  }
+  const auto returned = buf[0] + 1;
+  if (returned < 2) {
+    ESP_LOGD(TAG, "Only %d bytes sent in the PID, unknown/unsupported device", returned);
+    return make_stm32_with_deletor(nullptr);
+  }
+  stm->pid = (buf[1] << 8) | buf[2];
+  if (returned > 2) {
+    ESP_LOGD(TAG, "This bootloader returns %d extra bytes in PID:", returned);
+    for (auto i = 2; i <= returned; i++)
+      ESP_LOGD(TAG, " %02x", buf[i]);
+  }
+  if (stm32_get_ack(stm) != STM32_ERR_OK) {
+    return make_stm32_with_deletor(nullptr);
+  }
+
+  stm->dev = DEVICES;
+  while (stm->dev->id != 0x00 && stm->dev->id != stm->pid)
+    ++stm->dev;
+
+  if (!stm->dev->id) {
+    ESP_LOGD(TAG, "Unknown/unsupported device (Device ID: 0x%03x)", stm->pid);
+    return make_stm32_with_deletor(nullptr);
+  }
+
+  return stm;
+}
+
+stm32_err_t stm32_read_memory(const stm32_unique_ptr &stm, const uint32_t address, uint8_t *data,
+                              const unsigned int len) {
+  auto *const stream = stm->stream;
+
+  if (!len)
+    return STM32_ERR_OK;
+
+  if (len > 256) {
+    ESP_LOGD(TAG, "Error: READ length limit at 256 bytes");
+    return STM32_ERR_UNKNOWN;
+  }
+
+  if (stm->cmd->rm == STM32_CMD_ERR) {
+    ESP_LOGD(TAG, "Error: READ command not implemented in bootloader.");
+    return STM32_ERR_NO_CMD;
+  }
+
+  if (stm32_send_command(stm, stm->cmd->rm) != STM32_ERR_OK)
+    return STM32_ERR_UNKNOWN;
+
+  static constexpr auto BUFFER_SIZE = 5;
+  uint8_t buf[BUFFER_SIZE];
+  populate_buffer_with_address(buf, address);
+
+  stream->write_array(buf, BUFFER_SIZE);
+  stream->flush();
+
+  if (stm32_get_ack(stm) != STM32_ERR_OK)
+    return STM32_ERR_UNKNOWN;
+
+  if (stm32_send_command(stm, len - 1) != STM32_ERR_OK)
+    return STM32_ERR_UNKNOWN;
+
+  if (!stream->read_array(data, len))
+    return STM32_ERR_UNKNOWN;
+
+  return STM32_ERR_OK;
+}
+
+stm32_err_t stm32_write_memory(const stm32_unique_ptr &stm, uint32_t address, const uint8_t *data,
+                               const unsigned int len) {
+  auto *const stream = stm->stream;
+
+  if (!len)
+    return STM32_ERR_OK;
+
+  if (len > 256) {
+    ESP_LOGD(TAG, "Error: READ length limit at 256 bytes");
+    return STM32_ERR_UNKNOWN;
+  }
+
+  /* must be 32bit aligned */
+  if (address & 0x3) {
+    ESP_LOGD(TAG, "Error: WRITE address must be 4 byte aligned");
+    return STM32_ERR_UNKNOWN;
+  }
+
+  if (stm->cmd->wm == STM32_CMD_ERR) {
+    ESP_LOGD(TAG, "Error: WRITE command not implemented in bootloader.");
+    return STM32_ERR_NO_CMD;
+  }
+
+  /* send the address and checksum */
+  if (stm32_send_command(stm, stm->cmd->wm) != STM32_ERR_OK)
+    return STM32_ERR_UNKNOWN;
+
+  static constexpr auto BUFFER_SIZE = 5;
+  uint8_t buf1[BUFFER_SIZE];
+  populate_buffer_with_address(buf1, address);
+
+  stream->write_array(buf1, BUFFER_SIZE);
+  stream->flush();
+  if (stm32_get_ack(stm) != STM32_ERR_OK)
+    return STM32_ERR_UNKNOWN;
+
+  const unsigned int aligned_len = (len + 3) & ~3;
+  uint8_t cs = aligned_len - 1;
+  uint8_t buf[256 + 2];
+
+  buf[0] = aligned_len - 1;
+  for (auto i = 0; i < len; i++) {
+    cs ^= data[i];
+    buf[i + 1] = data[i];
+  }
+  /* padding data */
+  for (auto i = len; i < aligned_len; i++) {
+    cs ^= 0xFF;
+    buf[i + 1] = 0xFF;
+  }
+  buf[aligned_len + 1] = cs;
+  stream->write_array(buf, aligned_len + 2);
+  stream->flush();
+
+  const auto s_err = stm32_get_ack_timeout(stm, STM32_BLKWRITE_TIMEOUT);
+  if (s_err != STM32_ERR_OK) {
+    return STM32_ERR_UNKNOWN;
+  }
+  return STM32_ERR_OK;
+}
+
+stm32_err_t stm32_wunprot_memory(const stm32_unique_ptr &stm) {
+  if (stm->cmd->uw == STM32_CMD_ERR) {
+    ESP_LOGD(TAG, "Error: WRITE UNPROTECT command not implemented in bootloader.");
+    return STM32_ERR_NO_CMD;
+  }
+
+  if (stm32_send_command(stm, stm->cmd->uw) != STM32_ERR_OK)
+    return STM32_ERR_UNKNOWN;
+
+  return stm32_check_ack_timeout(stm32_get_ack_timeout(stm, STM32_WUNPROT_TIMEOUT),
+                                 []() { ESP_LOGD(TAG, "Error: Failed to WRITE UNPROTECT"); });
+}
+
+stm32_err_t stm32_wprot_memory(const stm32_unique_ptr &stm) {
+  if (stm->cmd->wp == STM32_CMD_ERR) {
+    ESP_LOGD(TAG, "Error: WRITE PROTECT command not implemented in bootloader.");
+    return STM32_ERR_NO_CMD;
+  }
+
+  if (stm32_send_command(stm, stm->cmd->wp) != STM32_ERR_OK)
+    return STM32_ERR_UNKNOWN;
+
+  return stm32_check_ack_timeout(stm32_get_ack_timeout(stm, STM32_WPROT_TIMEOUT),
+                                 []() { ESP_LOGD(TAG, "Error: Failed to WRITE PROTECT"); });
+}
+
+stm32_err_t stm32_runprot_memory(const stm32_unique_ptr &stm) {
+  if (stm->cmd->ur == STM32_CMD_ERR) {
+    ESP_LOGD(TAG, "Error: READOUT UNPROTECT command not implemented in bootloader.");
+    return STM32_ERR_NO_CMD;
+  }
+
+  if (stm32_send_command(stm, stm->cmd->ur) != STM32_ERR_OK)
+    return STM32_ERR_UNKNOWN;
+
+  return stm32_check_ack_timeout(stm32_get_ack_timeout(stm, STM32_MASSERASE_TIMEOUT),
+                                 []() { ESP_LOGD(TAG, "Error: Failed to READOUT UNPROTECT"); });
+}
+
+stm32_err_t stm32_readprot_memory(const stm32_unique_ptr &stm) {
+  if (stm->cmd->rp == STM32_CMD_ERR) {
+    ESP_LOGD(TAG, "Error: READOUT PROTECT command not implemented in bootloader.");
+    return STM32_ERR_NO_CMD;
+  }
+
+  if (stm32_send_command(stm, stm->cmd->rp) != STM32_ERR_OK)
+    return STM32_ERR_UNKNOWN;
+
+  return stm32_check_ack_timeout(stm32_get_ack_timeout(stm, STM32_RPROT_TIMEOUT),
+                                 []() { ESP_LOGD(TAG, "Error: Failed to READOUT PROTECT"); });
+}
+
+stm32_err_t stm32_erase_memory(const stm32_unique_ptr &stm, uint32_t spage, uint32_t pages) {
+  if (!pages || spage > STM32_MAX_PAGES || ((pages != STM32_MASS_ERASE) && ((spage + pages) > STM32_MAX_PAGES)))
+    return STM32_ERR_OK;
+
+  if (stm->cmd->er == STM32_CMD_ERR) {
+    ESP_LOGD(TAG, "Error: ERASE command not implemented in bootloader.");
+    return STM32_ERR_NO_CMD;
+  }
+
+  if (pages == STM32_MASS_ERASE) {
+    /*
+     * Not all chips support mass erase.
+     * Mass erase can be obtained executing a "readout protect"
+     * followed by "readout un-protect". This method is not
+     * suggested because can hang the target if a debug SWD/JTAG
+     * is connected. When the target enters in "readout
+     * protection" mode it will consider the debug connection as
+     * a tentative of intrusion and will hang.
+     * Erasing the flash page-by-page is the safer way to go.
+     */
+    if (!(stm->dev->flags & F_NO_ME))
+      return stm32_mass_erase(stm);
+
+    pages = flash_addr_to_page_ceil(stm, stm->dev->fl_end);
+  }
+
+  /*
+   * Some device, like STM32L152, cannot erase more than 512 pages in
+   * one command. Split the call.
+   */
+  static constexpr uint32_t MAX_PAGE_SIZE = 512;
+  while (pages) {
+    const auto n = std::min(pages, MAX_PAGE_SIZE);
+    const auto s_err = stm32_pages_erase(stm, spage, n);
+    if (s_err != STM32_ERR_OK)
+      return s_err;
+    spage += n;
+    pages -= n;
+  }
+  return STM32_ERR_OK;
+}
+
+static stm32_err_t stm32_run_raw_code(const stm32_unique_ptr &stm, uint32_t target_address, const uint8_t *code,
+                                      uint32_t code_size) {
+  static constexpr uint32_t BUFFER_SIZE = 256;
+
+  const auto stack_le = le_u32(0x20002000);
+  const auto code_address_le = le_u32(target_address + 8 + 1);  // thumb mode address (!)
+  uint32_t length = code_size + 8;
+
+  /* Must be 32-bit aligned */
+  if (target_address & 0x3) {
+    ESP_LOGD(TAG, "Error: code address must be 4 byte aligned");
+    return STM32_ERR_UNKNOWN;
+  }
+
+  // Could be constexpr in c++17
+  static const auto DELETOR = [](uint8_t *memory) {
+    free(memory);  // NOLINT
+  };
+
+  // Free memory with RAII
+  std::unique_ptr<uint8_t, decltype(DELETOR)> mem{static_cast<uint8_t *>(malloc(length)),  // NOLINT
+                                                  DELETOR};
+
+  if (!mem)
+    return STM32_ERR_UNKNOWN;
+
+  memcpy(mem.get(), &stack_le, sizeof(stack_le));
+  memcpy(mem.get() + 4, &code_address_le, sizeof(code_address_le));
+  memcpy(mem.get() + 8, code, code_size);
+
+  auto *pos = mem.get();
+  auto address = target_address;
+  while (length > 0) {
+    const auto w = std::min(length, BUFFER_SIZE);
+    if (stm32_write_memory(stm, address, pos, w) != STM32_ERR_OK) {
+      return STM32_ERR_UNKNOWN;
+    }
+
+    address += w;
+    pos += w;
+    length -= w;
+  }
+
+  return stm32_go(stm, target_address);
+}
+
+stm32_err_t stm32_go(const stm32_unique_ptr &stm, const uint32_t address) {
+  auto *const stream = stm->stream;
+
+  if (stm->cmd->go == STM32_CMD_ERR) {
+    ESP_LOGD(TAG, "Error: GO command not implemented in bootloader.");
+    return STM32_ERR_NO_CMD;
+  }
+
+  if (stm32_send_command(stm, stm->cmd->go) != STM32_ERR_OK)
+    return STM32_ERR_UNKNOWN;
+
+  static constexpr auto BUFFER_SIZE = 5;
+  uint8_t buf[BUFFER_SIZE];
+  populate_buffer_with_address(buf, address);
+
+  stream->write_array(buf, BUFFER_SIZE);
+  stream->flush();
+
+  if (stm32_get_ack(stm) != STM32_ERR_OK)
+    return STM32_ERR_UNKNOWN;
+  return STM32_ERR_OK;
+}
+
+stm32_err_t stm32_reset_device(const stm32_unique_ptr &stm) {
+  const auto target_address = stm->dev->ram_start;
+
+  if (stm->dev->flags & F_OBLL) {
+    /* set the OBL_LAUNCH bit to reset device (see RM0360, 2.5) */
+    return stm32_run_raw_code(stm, target_address, STM_OBL_LAUNCH_CODE, STM_OBL_LAUNCH_CODE_SIZE);
+  } else {
+    return stm32_run_raw_code(stm, target_address, STM_RESET_CODE, STM_RESET_CODE_SIZE);
+  }
+}
+
+stm32_err_t stm32_crc_memory(const stm32_unique_ptr &stm, const uint32_t address, const uint32_t length,
+                             uint32_t *const crc) {
+  static constexpr auto BUFFER_SIZE = 5;
+  auto *const stream = stm->stream;
+
+  if (address & 0x3 || length & 0x3) {
+    ESP_LOGD(TAG, "Start and end addresses must be 4 byte aligned");
+    return STM32_ERR_UNKNOWN;
+  }
+
+  if (stm->cmd->crc == STM32_CMD_ERR) {
+    ESP_LOGD(TAG, "Error: CRC command not implemented in bootloader.");
+    return STM32_ERR_NO_CMD;
+  }
+
+  if (stm32_send_command(stm, stm->cmd->crc) != STM32_ERR_OK)
+    return STM32_ERR_UNKNOWN;
+
+  {
+    static constexpr auto BUFFER_SIZE = 5;
+    uint8_t buf[BUFFER_SIZE];
+    populate_buffer_with_address(buf, address);
+
+    stream->write_array(buf, BUFFER_SIZE);
+    stream->flush();
+  }
+
+  if (stm32_get_ack(stm) != STM32_ERR_OK)
+    return STM32_ERR_UNKNOWN;
+
+  {
+    static constexpr auto BUFFER_SIZE = 5;
+    uint8_t buf[BUFFER_SIZE];
+    populate_buffer_with_address(buf, address);
+
+    stream->write_array(buf, BUFFER_SIZE);
+    stream->flush();
+  }
+
+  if (stm32_get_ack(stm) != STM32_ERR_OK)
+    return STM32_ERR_UNKNOWN;
+
+  if (stm32_get_ack(stm) != STM32_ERR_OK)
+    return STM32_ERR_UNKNOWN;
+
+  {
+    uint8_t buf[BUFFER_SIZE];
+    if (!stream->read_array(buf, BUFFER_SIZE))
+      return STM32_ERR_UNKNOWN;
+
+    if (buf[4] != (buf[0] ^ buf[1] ^ buf[2] ^ buf[3]))
+      return STM32_ERR_UNKNOWN;
+
+    *crc = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
+  }
+
+  return STM32_ERR_OK;
+}
+
+/*
+ * CRC computed by STM32 is similar to the standard crc32_be()
+ * implemented, for example, in Linux kernel in ./lib/crc32.c
+ * But STM32 computes it on units of 32 bits word and swaps the
+ * bytes of the word before the computation.
+ * Due to byte swap, I cannot use any CRC available in existing
+ * libraries, so here is a simple not optimized implementation.
+ */
+uint32_t stm32_sw_crc(uint32_t crc, uint8_t *buf, unsigned int len) {
+  static constexpr uint32_t CRCPOLY_BE = 0x04c11db7;
+  static constexpr uint32_t CRC_MSBMASK = 0x80000000;
+
+  if (len & 0x3) {
+    ESP_LOGD(TAG, "Buffer length must be multiple of 4 bytes");
+    return 0;
+  }
+
+  while (len) {
+    uint32_t data = *buf++;
+    data |= *buf++ << 8;
+    data |= *buf++ << 16;
+    data |= *buf++ << 24;
+    len -= 4;
+
+    crc ^= data;
+
+    for (size_t i = 0; i < 32; ++i) {
+      if (crc & CRC_MSBMASK) {
+        crc = (crc << 1) ^ CRCPOLY_BE;
+      } else {
+        crc = (crc << 1);
+      }
+    }
+  }
+  return crc;
+}
+
+stm32_err_t stm32_crc_wrapper(const stm32_unique_ptr &stm, uint32_t address, uint32_t length, uint32_t *crc) {
+  static constexpr uint32_t CRC_INIT_VALUE = 0xFFFFFFFF;
+  static constexpr uint32_t BUFFER_SIZE = 256;
+
+  uint8_t buf[BUFFER_SIZE];
+
+  if (address & 0x3 || length & 0x3) {
+    ESP_LOGD(TAG, "Start and end addresses must be 4 byte aligned");
+    return STM32_ERR_UNKNOWN;
+  }
+
+  if (stm->cmd->crc != STM32_CMD_ERR)
+    return stm32_crc_memory(stm, address, length, crc);
+
+  const auto start = address;
+  const auto total_len = length;
+  uint32_t current_crc = CRC_INIT_VALUE;
+  while (length) {
+    const auto len = std::min(BUFFER_SIZE, length);
+    if (stm32_read_memory(stm, address, buf, len) != STM32_ERR_OK) {
+      ESP_LOGD(TAG, "Failed to read memory at address 0x%08x, target write-protected?", address);
+      return STM32_ERR_UNKNOWN;
+    }
+    current_crc = stm32_sw_crc(current_crc, buf, len);
+    length -= len;
+    address += len;
+
+    ESP_LOGD(TAG, "\rCRC address 0x%08x (%.2f%%) ", address, (100.0f / (float) total_len) * (float) (address - start));
+  }
+  ESP_LOGD(TAG, "Done.");
+  *crc = current_crc;
+  return STM32_ERR_OK;
+}
+
+}  // namespace shelly_dimmer
+}  // namespace esphome
+#endif

esphome/components/shelly_dimmer/stm32flash.h

@@ -0,0 +1,131 @@
+/*
+  stm32flash - Open Source ST STM32 flash program for Arduino
+  Copyright (C) 2010 Geoffrey McRae <geoff@spacevs.com>
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License
+  as published by the Free Software Foundation; either version 2
+  of the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*/
+
+#pragma once
+
+#include "esphome/core/defines.h"
+#ifdef USE_SHD_FIRMWARE_DATA
+
+#include <cstdint>
+#include <memory>
+#include "esphome/components/uart/uart.h"
+
+namespace esphome {
+namespace shelly_dimmer {
+
+/* flags */
+constexpr auto STREAM_OPT_BYTE = (1 << 0);      /* byte (not frame) oriented */
+constexpr auto STREAM_OPT_GVR_ETX = (1 << 1);   /* cmd GVR returns protection status */
+constexpr auto STREAM_OPT_CMD_INIT = (1 << 2);  /* use INIT cmd to autodetect speed */
+constexpr auto STREAM_OPT_RETRY = (1 << 3);     /* allowed read() retry after timeout */
+constexpr auto STREAM_OPT_I2C = (1 << 4);       /* i2c */
+constexpr auto STREAM_OPT_STRETCH_W = (1 << 5); /* warning for no-stretching commands */
+
+constexpr auto STREAM_SERIAL = (STREAM_OPT_BYTE | STREAM_OPT_GVR_ETX | STREAM_OPT_CMD_INIT | STREAM_OPT_RETRY);
+constexpr auto STREAM_I2C = (STREAM_OPT_I2C | STREAM_OPT_STRETCH_W);
+
+constexpr auto STM32_MAX_RX_FRAME = 256;           /* cmd read memory */
+constexpr auto STM32_MAX_TX_FRAME = (1 + 256 + 1); /* cmd write memory */
+
+constexpr auto STM32_MAX_PAGES = 0x0000ffff;
+constexpr auto STM32_MASS_ERASE = 0x00100000; /* > 2 x max_pages */
+
+using stm32_err_t = enum Stm32Err {
+  STM32_ERR_OK = 0,
+  STM32_ERR_UNKNOWN, /* Generic error */
+  STM32_ERR_NACK,
+  STM32_ERR_NO_CMD, /* Command not available in bootloader */
+};
+
+using flags_t = enum Flags {
+  F_NO_ME = 1 << 0, /* Mass-Erase not supported */
+  F_OBLL = 1 << 1,  /* OBL_LAUNCH required */
+};
+
+using stm32_cmd_t = struct Stm32Cmd {
+  uint8_t get;
+  uint8_t gvr;
+  uint8_t gid;
+  uint8_t rm;
+  uint8_t go;
+  uint8_t wm;
+  uint8_t er; /* this may be extended erase */
+  uint8_t wp;
+  uint8_t uw;
+  uint8_t rp;
+  uint8_t ur;
+  uint8_t crc;
+};
+
+using stm32_dev_t = struct Stm32Dev {  // NOLINT
+  const uint16_t id;
+  const char *name;
+  const uint32_t ram_start, ram_end;
+  const uint32_t fl_start, fl_end;
+  const uint16_t fl_pps;  // pages per sector
+  const uint32_t *fl_ps;  // page size
+  const uint32_t opt_start, opt_end;
+  const uint32_t mem_start, mem_end;
+  const uint32_t flags;
+};
+
+using stm32_t = struct Stm32 {
+  uart::UARTDevice *stream;
+  uint8_t flags;
+  struct VarlenCmd *cmd_get_reply;
+  uint8_t bl_version;
+  uint8_t version;
+  uint8_t option1, option2;
+  uint16_t pid;
+  stm32_cmd_t *cmd;
+  const stm32_dev_t *dev;
+};
+
+/*
+ * Specify the length of reply for command GET
+ * This is helpful for frame-oriented protocols, e.g. i2c, to avoid time
+ * consuming try-fail-timeout-retry operation.
+ * On byte-oriented protocols, i.e. UART, this information would be skipped
+ * after read the first byte, so not needed.
+ */
+struct VarlenCmd {
+  uint8_t version;
+  uint8_t length;
+};
+
+using stm32_unique_ptr = std::unique_ptr<stm32_t, void (*)(stm32_t *)>;
+
+stm32_unique_ptr stm32_init(uart::UARTDevice *stream, uint8_t flags, char init);
+stm32_err_t stm32_read_memory(const stm32_unique_ptr &stm, uint32_t address, uint8_t *data, unsigned int len);
+stm32_err_t stm32_write_memory(const stm32_unique_ptr &stm, uint32_t address, const uint8_t *data, unsigned int len);
+stm32_err_t stm32_wunprot_memory(const stm32_unique_ptr &stm);
+stm32_err_t stm32_wprot_memory(const stm32_unique_ptr &stm);
+stm32_err_t stm32_erase_memory(const stm32_unique_ptr &stm, uint32_t spage, uint32_t pages);
+stm32_err_t stm32_go(const stm32_unique_ptr &stm, uint32_t address);
+stm32_err_t stm32_reset_device(const stm32_unique_ptr &stm);
+stm32_err_t stm32_readprot_memory(const stm32_unique_ptr &stm);
+stm32_err_t stm32_runprot_memory(const stm32_unique_ptr &stm);
+stm32_err_t stm32_crc_memory(const stm32_unique_ptr &stm, uint32_t address, uint32_t length, uint32_t *crc);
+stm32_err_t stm32_crc_wrapper(const stm32_unique_ptr &stm, uint32_t address, uint32_t length, uint32_t *crc);
+uint32_t stm32_sw_crc(uint32_t crc, uint8_t *buf, unsigned int len);
+
+}  // namespace shelly_dimmer
+}  // namespace esphome
+
+#endif  // USE_SHD_FIRMWARE_DATA

esphome/components/sht3xd/sensor.py

@@ -1,6 +1,6 @@
 import esphome.codegen as cg
 import esphome.config_validation as cv
-from esphome.components import i2c, sensor
+from esphome.components import i2c, sensor, sensirion_common
 from esphome.const import (
     CONF_HUMIDITY,
     CONF_ID,
@@ -13,10 +13,11 @@ from esphome.const import (
 )
 
 DEPENDENCIES = ["i2c"]
+AUTO_LOAD = ["sensirion_common"]
 
 sht3xd_ns = cg.esphome_ns.namespace("sht3xd")
 SHT3XDComponent = sht3xd_ns.class_(
-    "SHT3XDComponent", cg.PollingComponent, i2c.I2CDevice
+    "SHT3XDComponent", cg.PollingComponent, sensirion_common.SensirionI2CDevice
 )
 
 CONFIG_SCHEMA = (

esphome/components/sht3xd/sht3xd.cpp

@@ -17,13 +17,8 @@ static const uint16_t SHT3XD_COMMAND_FETCH_DATA = 0xE000;
 
 void SHT3XDComponent::setup() {
   ESP_LOGCONFIG(TAG, "Setting up SHT3xD...");
-  if (!this->write_command_(SHT3XD_COMMAND_READ_SERIAL_NUMBER)) {
-    this->mark_failed();
-    return;
-  }
-
   uint16_t raw_serial_number[2];
-  if (!this->read_data_(raw_serial_number, 2)) {
+  if (!this->get_register(SHT3XD_COMMAND_READ_SERIAL_NUMBER, raw_serial_number, 2)) {
     this->mark_failed();
     return;
   }
@@ -45,16 +40,16 @@ float SHT3XDComponent::get_setup_priority() const { return setup_priority::DATA;
 void SHT3XDComponent::update() {
   if (this->status_has_warning()) {
     ESP_LOGD(TAG, "Retrying to reconnect the sensor.");
-    this->write_command_(SHT3XD_COMMAND_SOFT_RESET);
+    this->write_command(SHT3XD_COMMAND_SOFT_RESET);
   }
-  if (!this->write_command_(SHT3XD_COMMAND_POLLING_H)) {
+  if (!this->write_command(SHT3XD_COMMAND_POLLING_H)) {
     this->status_set_warning();
     return;
   }
 
   this->set_timeout(50, [this]() {
     uint16_t raw_data[2];
-    if (!this->read_data_(raw_data, 2)) {
+    if (!this->read_data(raw_data, 2)) {
       this->status_set_warning();
       return;
     }
@@ -71,56 +66,5 @@ void SHT3XDComponent::update() {
   });
 }
 
-bool SHT3XDComponent::write_command_(uint16_t command) {
-  // Warning ugly, trick the I2Ccomponent base by setting register to the first 8 bit.
-  return this->write_byte(command >> 8, command & 0xFF);
-}
-
-uint8_t sht_crc(uint8_t data1, uint8_t data2) {
-  uint8_t bit;
-  uint8_t crc = 0xFF;
-
-  crc ^= data1;
-  for (bit = 8; bit > 0; --bit) {
-    if (crc & 0x80) {
-      crc = (crc << 1) ^ 0x131;
-    } else {
-      crc = (crc << 1);
-    }
-  }
-
-  crc ^= data2;
-  for (bit = 8; bit > 0; --bit) {
-    if (crc & 0x80) {
-      crc = (crc << 1) ^ 0x131;
-    } else {
-      crc = (crc << 1);
-    }
-  }
-
-  return crc;
-}
-
-bool SHT3XDComponent::read_data_(uint16_t *data, uint8_t len) {
-  const uint8_t num_bytes = len * 3;
-  std::vector<uint8_t> buf(num_bytes);
-
-  if (this->read(buf.data(), num_bytes) != i2c::ERROR_OK) {
-    return false;
-  }
-
-  for (uint8_t i = 0; i < len; i++) {
-    const uint8_t j = 3 * i;
-    uint8_t crc = sht_crc(buf[j], buf[j + 1]);
-    if (crc != buf[j + 2]) {
-      ESP_LOGE(TAG, "CRC8 Checksum invalid! 0x%02X != 0x%02X", buf[j + 2], crc);
-      return false;
-    }
-    data[i] = (buf[j] << 8) | buf[j + 1];
-  }
-
-  return true;
-}
-
 }  // namespace sht3xd
 }  // namespace esphome

esphome/components/sht3xd/sht3xd.h

@@ -2,13 +2,13 @@
 
 #include "esphome/core/component.h"
 #include "esphome/components/sensor/sensor.h"
-#include "esphome/components/i2c/i2c.h"
+#include "esphome/components/sensirion_common/i2c_sensirion.h"
 
 namespace esphome {
 namespace sht3xd {
 
 /// This class implements support for the SHT3x-DIS family of temperature+humidity i2c sensors.
-class SHT3XDComponent : public PollingComponent, public i2c::I2CDevice {
+class SHT3XDComponent : public PollingComponent, public sensirion_common::SensirionI2CDevice {
  public:
   void set_temperature_sensor(sensor::Sensor *temperature_sensor) { temperature_sensor_ = temperature_sensor; }
   void set_humidity_sensor(sensor::Sensor *humidity_sensor) { humidity_sensor_ = humidity_sensor; }
@@ -19,9 +19,6 @@ class SHT3XDComponent : public PollingComponent, public i2c::I2CDevice {
   void update() override;
 
  protected:
-  bool write_command_(uint16_t command);
-  bool read_data_(uint16_t *data, uint8_t len);
-
   sensor::Sensor *temperature_sensor_;
   sensor::Sensor *humidity_sensor_;
 };

esphome/components/sht4x/sensor.py

@@ -1,6 +1,6 @@
 import esphome.codegen as cg
 import esphome.config_validation as cv
-from esphome.components import i2c, sensor
+from esphome.components import i2c, sensor, sensirion_common
 from esphome.const import (
     CONF_ID,
     CONF_TEMPERATURE,
@@ -16,10 +16,13 @@ from esphome.const import (
 
 CODEOWNERS = ["@sjtrny"]
 DEPENDENCIES = ["i2c"]
+AUTO_LOAD = ["sensirion_common"]
 
 sht4x_ns = cg.esphome_ns.namespace("sht4x")
 
-SHT4XComponent = sht4x_ns.class_("SHT4XComponent", cg.PollingComponent, i2c.I2CDevice)
+SHT4XComponent = sht4x_ns.class_(
+    "SHT4XComponent", cg.PollingComponent, sensirion_common.SensirionI2CDevice
+)
 
 CONF_PRECISION = "precision"
 SHT4XPRECISION = sht4x_ns.enum("SHT4XPRECISION")

esphome/components/sht4x/sht4x.cpp

@@ -50,31 +50,28 @@ void SHT4XComponent::setup() {
 void SHT4XComponent::dump_config() { LOG_I2C_DEVICE(this); }
 
 void SHT4XComponent::update() {
-  uint8_t cmd[] = {MEASURECOMMANDS[this->precision_]};
-
   // Send command
-  this->write(cmd, 1);
+  this->write_command(MEASURECOMMANDS[this->precision_]);
 
   this->set_timeout(10, [this]() {
-    const uint8_t num_bytes = 6;
-    uint8_t buffer[num_bytes];
+    uint16_t buffer[2];
 
     // Read measurement
-    bool read_status = this->read_bytes_raw(buffer, num_bytes);
+    bool read_status = this->read_data(buffer, 2);
 
     if (read_status) {
       // Evaluate and publish measurements
       if (this->temp_sensor_ != nullptr) {
-        // Temp is contained in the first 16 bits
-        float sensor_value_temp = (buffer[0] << 8) + buffer[1];
+        // Temp is contained in the first result word
+        float sensor_value_temp = buffer[0];
         float temp = -45 + 175 * sensor_value_temp / 65535;
 
         this->temp_sensor_->publish_state(temp);
       }
 
       if (this->humidity_sensor_ != nullptr) {
-        // Relative humidity is in the last 16 bits
-        float sensor_value_rh = (buffer[3] << 8) + buffer[4];
+        // Relative humidity is in the second result word
+        float sensor_value_rh = buffer[1];
         float rh = -6 + 125 * sensor_value_rh / 65535;
 
         this->humidity_sensor_->publish_state(rh);

esphome/components/sht4x/sht4x.h

@@ -2,7 +2,7 @@
 
 #include "esphome/core/component.h"
 #include "esphome/components/sensor/sensor.h"
-#include "esphome/components/i2c/i2c.h"
+#include "esphome/components/sensirion_common/i2c_sensirion.h"
 
 namespace esphome {
 namespace sht4x {
@@ -13,7 +13,7 @@ enum SHT4XHEATERPOWER { SHT4X_HEATERPOWER_HIGH, SHT4X_HEATERPOWER_MED, SHT4X_HEA
 
 enum SHT4XHEATERTIME { SHT4X_HEATERTIME_LONG = 1100, SHT4X_HEATERTIME_SHORT = 110 };
 
-class SHT4XComponent : public PollingComponent, public i2c::I2CDevice {
+class SHT4XComponent : public PollingComponent, public sensirion_common::SensirionI2CDevice {
  public:
   float get_setup_priority() const override { return setup_priority::DATA; }
   void setup() override;

esphome/components/shtcx/sensor.py

@@ -1,6 +1,6 @@
 import esphome.codegen as cg
 import esphome.config_validation as cv
-from esphome.components import i2c, sensor
+from esphome.components import i2c, sensor, sensirion_common
 from esphome.const import (
     CONF_HUMIDITY,
     CONF_ID,
@@ -13,9 +13,12 @@ from esphome.const import (
 )
 
 DEPENDENCIES = ["i2c"]
+AUTO_LOAD = ["sensirion_common"]
 
 shtcx_ns = cg.esphome_ns.namespace("shtcx")
-SHTCXComponent = shtcx_ns.class_("SHTCXComponent", cg.PollingComponent, i2c.I2CDevice)
+SHTCXComponent = shtcx_ns.class_(
+    "SHTCXComponent", cg.PollingComponent, sensirion_common.SensirionI2CDevice
+)
 
 SHTCXType = shtcx_ns.enum("SHTCXType")
 

esphome/components/shtcx/shtcx.cpp

@@ -29,21 +29,23 @@ void SHTCXComponent::setup() {
   this->wake_up();
   this->soft_reset();
 
-  if (!this->write_command_(SHTCX_COMMAND_READ_ID_REGISTER)) {
+  if (!this->write_command(SHTCX_COMMAND_READ_ID_REGISTER)) {
     ESP_LOGE(TAG, "Error requesting Device ID");
     this->mark_failed();
     return;
   }
 
-  uint16_t device_id_register[1];
-  if (!this->read_data_(device_id_register, 1)) {
+  uint16_t device_id_register;
+  if (!this->read_data(&device_id_register, 1)) {
     ESP_LOGE(TAG, "Error reading Device ID");
     this->mark_failed();
     return;
   }
 
-  if (((device_id_register[0] << 2) & 0x1C) == 0x1C) {
-    if ((device_id_register[0] & 0x847) == 0x847) {
+  this->sensor_id_ = device_id_register;
+
+  if ((device_id_register & 0x3F) == 0x07) {
+    if (device_id_register & 0x800) {
       this->type_ = SHTCX_TYPE_SHTC3;
     } else {
       this->type_ = SHTCX_TYPE_SHTC1;
@@ -51,11 +53,11 @@ void SHTCXComponent::setup() {
   } else {
     this->type_ = SHTCX_TYPE_UNKNOWN;
   }
-  ESP_LOGCONFIG(TAG, "  Device identified: %s", to_string(this->type_));
+  ESP_LOGCONFIG(TAG, "  Device identified: %s (%04x)", to_string(this->type_), device_id_register);
 }
 void SHTCXComponent::dump_config() {
   ESP_LOGCONFIG(TAG, "SHTCx:");
-  ESP_LOGCONFIG(TAG, "  Model: %s", to_string(this->type_));
+  ESP_LOGCONFIG(TAG, "  Model: %s (%04x)", to_string(this->type_), this->sensor_id_);
   LOG_I2C_DEVICE(this);
   if (this->is_failed()) {
     ESP_LOGE(TAG, "Communication with SHTCx failed!");
@@ -74,22 +76,29 @@ void SHTCXComponent::update() {
   if (this->type_ != SHTCX_TYPE_SHTC1) {
     this->wake_up();
   }
-  if (!this->write_command_(SHTCX_COMMAND_POLLING_H)) {
+  if (!this->write_command(SHTCX_COMMAND_POLLING_H)) {
+    ESP_LOGE(TAG, "sensor polling failed");
+    if (this->temperature_sensor_ != nullptr)
+      this->temperature_sensor_->publish_state(NAN);
+    if (this->humidity_sensor_ != nullptr)
+      this->humidity_sensor_->publish_state(NAN);
     this->status_set_warning();
     return;
   }
 
   this->set_timeout(50, [this]() {
+    float temperature = NAN;
+    float humidity = NAN;
     uint16_t raw_data[2];
-    if (!this->read_data_(raw_data, 2)) {
+    if (!this->read_data(raw_data, 2)) {
+      ESP_LOGE(TAG, "sensor read failed");
       this->status_set_warning();
-      return;
+    } else {
+      temperature = 175.0f * float(raw_data[0]) / 65536.0f - 45.0f;
+      humidity = 100.0f * float(raw_data[1]) / 65536.0f;
+
+      ESP_LOGD(TAG, "Got temperature=%.2f°C humidity=%.2f%%", temperature, humidity);
     }
-
-    float temperature = 175.0f * float(raw_data[0]) / 65536.0f - 45.0f;
-    float humidity = 100.0f * float(raw_data[1]) / 65536.0f;
-
-    ESP_LOGD(TAG, "Got temperature=%.2f°C humidity=%.2f%%", temperature, humidity);
     if (this->temperature_sensor_ != nullptr)
       this->temperature_sensor_->publish_state(temperature);
     if (this->humidity_sensor_ != nullptr)
@@ -101,65 +110,14 @@ void SHTCXComponent::update() {
   });
 }
 
-bool SHTCXComponent::write_command_(uint16_t command) {
-  // Warning ugly, trick the I2Ccomponent base by setting register to the first 8 bit.
-  return this->write_byte(command >> 8, command & 0xFF);
-}
-
-uint8_t sht_crc(uint8_t data1, uint8_t data2) {
-  uint8_t bit;
-  uint8_t crc = 0xFF;
-
-  crc ^= data1;
-  for (bit = 8; bit > 0; --bit) {
-    if (crc & 0x80) {
-      crc = (crc << 1) ^ 0x131;
-    } else {
-      crc = (crc << 1);
-    }
-  }
-
-  crc ^= data2;
-  for (bit = 8; bit > 0; --bit) {
-    if (crc & 0x80) {
-      crc = (crc << 1) ^ 0x131;
-    } else {
-      crc = (crc << 1);
-    }
-  }
-
-  return crc;
-}
-
-bool SHTCXComponent::read_data_(uint16_t *data, uint8_t len) {
-  const uint8_t num_bytes = len * 3;
-  std::vector<uint8_t> buf(num_bytes);
-
-  if (this->read(buf.data(), num_bytes) != i2c::ERROR_OK) {
-    return false;
-  }
-
-  for (uint8_t i = 0; i < len; i++) {
-    const uint8_t j = 3 * i;
-    uint8_t crc = sht_crc(buf[j], buf[j + 1]);
-    if (crc != buf[j + 2]) {
-      ESP_LOGE(TAG, "CRC8 Checksum invalid! 0x%02X != 0x%02X", buf[j + 2], crc);
-      return false;
-    }
-    data[i] = (buf[j] << 8) | buf[j + 1];
-  }
-
-  return true;
-}
-
 void SHTCXComponent::soft_reset() {
-  this->write_command_(SHTCX_COMMAND_SOFT_RESET);
+  this->write_command(SHTCX_COMMAND_SOFT_RESET);
   delayMicroseconds(200);
 }
-void SHTCXComponent::sleep() { this->write_command_(SHTCX_COMMAND_SLEEP); }
+void SHTCXComponent::sleep() { this->write_command(SHTCX_COMMAND_SLEEP); }
 
 void SHTCXComponent::wake_up() {
-  this->write_command_(SHTCX_COMMAND_WAKEUP);
+  this->write_command(SHTCX_COMMAND_WAKEUP);
   delayMicroseconds(200);
 }
 

esphome/components/shtcx/shtcx.h

@@ -2,7 +2,7 @@
 
 #include "esphome/core/component.h"
 #include "esphome/components/sensor/sensor.h"
-#include "esphome/components/i2c/i2c.h"
+#include "esphome/components/sensirion_common/i2c_sensirion.h"
 
 namespace esphome {
 namespace shtcx {
@@ -10,7 +10,7 @@ namespace shtcx {
 enum SHTCXType { SHTCX_TYPE_SHTC3 = 0, SHTCX_TYPE_SHTC1, SHTCX_TYPE_UNKNOWN };
 
 /// This class implements support for the SHT3x-DIS family of temperature+humidity i2c sensors.
-class SHTCXComponent : public PollingComponent, public i2c::I2CDevice {
+class SHTCXComponent : public PollingComponent, public sensirion_common::SensirionI2CDevice {
  public:
   void set_temperature_sensor(sensor::Sensor *temperature_sensor) { temperature_sensor_ = temperature_sensor; }
   void set_humidity_sensor(sensor::Sensor *humidity_sensor) { humidity_sensor_ = humidity_sensor; }
@@ -24,9 +24,8 @@ class SHTCXComponent : public PollingComponent, public i2c::I2CDevice {
   void wake_up();
 
  protected:
-  bool write_command_(uint16_t command);
-  bool read_data_(uint16_t *data, uint8_t len);
   SHTCXType type_;
+  uint16_t sensor_id_;
   sensor::Sensor *temperature_sensor_;
   sensor::Sensor *humidity_sensor_;
 };

esphome/components/sml/__init__.py

@@ -0,0 +1,38 @@
+import re
+
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import uart
+from esphome.const import CONF_ID
+
+CODEOWNERS = ["@alengwenus"]
+
+DEPENDENCIES = ["uart"]
+
+sml_ns = cg.esphome_ns.namespace("sml")
+Sml = sml_ns.class_("Sml", cg.Component, uart.UARTDevice)
+MULTI_CONF = True
+
+CONF_SML_ID = "sml_id"
+CONF_OBIS_CODE = "obis_code"
+CONF_SERVER_ID = "server_id"
+
+CONFIG_SCHEMA = cv.Schema(
+    {
+        cv.GenerateID(): cv.declare_id(Sml),
+    }
+).extend(uart.UART_DEVICE_SCHEMA)
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await cg.register_component(var, config)
+    await uart.register_uart_device(var, config)
+
+
+def obis_code(value):
+    value = cv.string(value)
+    match = re.match(r"^\d{1,3}-\d{1,3}:\d{1,3}\.\d{1,3}\.\d{1,3}$", value)
+    if match is None:
+        raise cv.Invalid(f"{value} is not a valid OBIS code")
+    return value

esphome/components/sml/constants.h

@@ -0,0 +1,48 @@
+#pragma once
+
+#include <cstdint>
+
+namespace esphome {
+namespace sml {
+
+enum SmlType : uint8_t {
+  SML_OCTET = 0,
+  SML_BOOL = 4,
+  SML_INT = 5,
+  SML_UINT = 6,
+  SML_LIST = 7,
+  SML_HEX = 10,
+  SML_UNDEFINED = 255
+};
+
+enum SmlMessageType : uint16_t { SML_PUBLIC_OPEN_RES = 0x0101, SML_GET_LIST_RES = 0x701 };
+
+enum Crc16CheckResult : uint8_t { CHECK_CRC16_FAILED, CHECK_CRC16_X25_SUCCESS, CHECK_CRC16_KERMIT_SUCCESS };
+
+// masks with two-bit mapping 0x1b -> 0b01; 0x01 -> 0b10; 0x1a -> 0b11
+const uint16_t START_MASK = 0x55aa;  // 0x1b 1b 1b 1b 1b 01 01 01 01
+const uint16_t END_MASK = 0x0157;    // 0x1b 1b 1b 1b 1a
+
+const uint16_t CRC16_X25_TABLE[256] = {
+    0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf, 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5,
+    0xe97e, 0xf8f7, 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e, 0x9cc9, 0x8d40, 0xbfdb, 0xae52,
+    0xdaed, 0xcb64, 0xf9ff, 0xe876, 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd, 0xad4a, 0xbcc3,
+    0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5, 0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
+    0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974, 0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9,
+    0x2732, 0x36bb, 0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3, 0x5285, 0x430c, 0x7197, 0x601e,
+    0x14a1, 0x0528, 0x37b3, 0x263a, 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72, 0x6306, 0x728f,
+    0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9, 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
+    0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738, 0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862,
+    0x9af9, 0x8b70, 0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7, 0x0840, 0x19c9, 0x2b52, 0x3adb,
+    0x4e64, 0x5fed, 0x6d76, 0x7cff, 0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036, 0x18c1, 0x0948,
+    0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e, 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
+    0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd, 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226,
+    0xd0bd, 0xc134, 0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c, 0xc60c, 0xd785, 0xe51e, 0xf497,
+    0x8028, 0x91a1, 0xa33a, 0xb2b3, 0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb, 0xd68d, 0xc704,
+    0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232, 0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
+    0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1, 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb,
+    0x0e70, 0x1ff9, 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330, 0x7bc7, 0x6a4e, 0x58d5, 0x495c,
+    0x3de3, 0x2c6a, 0x1ef1, 0x0f78};
+
+}  // namespace sml
+}  // namespace esphome