mirror of https://github.com/esphome/esphome.git
62 lines
1.8 KiB
C++
62 lines
1.8 KiB
C++
#include "duty_cycle_sensor.h"
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#include "esphome/core/log.h"
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#include "esphome/core/helpers.h"
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namespace esphome {
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namespace duty_cycle {
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static const char *const TAG = "duty_cycle";
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void DutyCycleSensor::setup() {
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ESP_LOGCONFIG(TAG, "Setting up Duty Cycle Sensor '%s'...", this->get_name().c_str());
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this->pin_->setup();
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this->store_.pin = this->pin_->to_isr();
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this->store_.last_level = this->pin_->digital_read();
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this->last_update_ = micros();
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this->store_.last_interrupt = micros();
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this->pin_->attach_interrupt(DutyCycleSensorStore::gpio_intr, &this->store_, CHANGE);
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}
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void DutyCycleSensor::dump_config() {
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LOG_SENSOR("", "Duty Cycle Sensor", this);
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LOG_PIN(" Pin: ", this->pin_);
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LOG_UPDATE_INTERVAL(this);
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}
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void DutyCycleSensor::update() {
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const uint32_t now = micros();
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const bool level = this->store_.last_level;
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const uint32_t last_interrupt = this->store_.last_interrupt;
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uint32_t on_time = this->store_.on_time;
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if (level)
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on_time += now - last_interrupt;
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const float total_time = float(now - this->last_update_);
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const float value = (on_time / total_time) * 100.0f;
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ESP_LOGD(TAG, "'%s' Got duty cycle=%.1f%%", this->get_name().c_str(), value);
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this->publish_state(value);
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this->store_.on_time = 0;
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this->store_.last_interrupt = now;
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this->last_update_ = now;
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}
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float DutyCycleSensor::get_setup_priority() const { return setup_priority::DATA; }
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void ICACHE_RAM_ATTR DutyCycleSensorStore::gpio_intr(DutyCycleSensorStore *arg) {
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const bool new_level = arg->pin->digital_read();
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if (new_level == arg->last_level)
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return;
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arg->last_level = new_level;
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const uint32_t now = micros();
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if (!new_level)
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arg->on_time += now - arg->last_interrupt;
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arg->last_interrupt = now;
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}
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} // namespace duty_cycle
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} // namespace esphome
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