mirror of https://github.com/esphome/esphome.git
39 lines
1.4 KiB
Python
39 lines
1.4 KiB
Python
import voluptuous as vol
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from esphomeyaml import pins
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import esphomeyaml.config_validation as cv
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from esphomeyaml.const import CONF_FREQUENCY, CONF_ID, CONF_RECEIVE_TIMEOUT, CONF_SCAN, CONF_SCL, \
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CONF_SDA
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from esphomeyaml.cpp_generator import Pvariable, add
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from esphomeyaml.cpp_helpers import setup_component
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from esphomeyaml.cpp_types import App, Component, esphomelib_ns
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I2CComponent = esphomelib_ns.class_('I2CComponent', Component)
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I2CDevice = pins.I2CDevice
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CONFIG_SCHEMA = vol.Schema({
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cv.GenerateID(): cv.declare_variable_id(I2CComponent),
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vol.Optional(CONF_SDA, default='SDA'): pins.input_pullup_pin,
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vol.Optional(CONF_SCL, default='SCL'): pins.input_pullup_pin,
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vol.Optional(CONF_FREQUENCY): vol.All(cv.frequency, vol.Range(min=0, min_included=False)),
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vol.Optional(CONF_SCAN): cv.boolean,
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vol.Optional(CONF_RECEIVE_TIMEOUT): cv.invalid("The receive_timeout option has been removed "
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"because timeouts are already handled by the "
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"low-level i2c interface.")
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}).extend(cv.COMPONENT_SCHEMA.schema)
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def to_code(config):
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rhs = App.init_i2c(config[CONF_SDA], config[CONF_SCL], config.get(CONF_SCAN))
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i2c = Pvariable(config[CONF_ID], rhs)
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if CONF_FREQUENCY in config:
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add(i2c.set_frequency(config[CONF_FREQUENCY]))
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setup_component(i2c, config)
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BUILD_FLAGS = '-DUSE_I2C'
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LIB_DEPS = 'Wire'
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