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69 lines
1.7 KiB
Python
69 lines
1.7 KiB
Python
import esphome.codegen as cg
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import esphome.config_validation as cv
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from esphome import pins
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from esphome.components import sensor, voltage_sampler
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from esphome.const import (
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CONF_ATTENUATION,
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CONF_ID,
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CONF_PIN,
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DEVICE_CLASS_VOLTAGE,
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STATE_CLASS_MEASUREMENT,
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UNIT_VOLT,
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)
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AUTO_LOAD = ["voltage_sampler"]
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ATTENUATION_MODES = {
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"0db": cg.global_ns.ADC_ATTEN_DB_0,
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"2.5db": cg.global_ns.ADC_ATTEN_DB_2_5,
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"6db": cg.global_ns.ADC_ATTEN_DB_6,
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"11db": cg.global_ns.ADC_ATTEN_DB_11,
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}
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def validate_adc_pin(value):
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vcc = str(value).upper()
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if vcc == "VCC":
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return cv.only_on_esp8266(vcc)
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return pins.analog_pin(value)
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adc_ns = cg.esphome_ns.namespace("adc")
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ADCSensor = adc_ns.class_(
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"ADCSensor", sensor.Sensor, cg.PollingComponent, voltage_sampler.VoltageSampler
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)
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CONFIG_SCHEMA = (
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sensor.sensor_schema(
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unit_of_measurement=UNIT_VOLT,
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accuracy_decimals=2,
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device_class=DEVICE_CLASS_VOLTAGE,
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state_class=STATE_CLASS_MEASUREMENT,
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)
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.extend(
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{
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cv.GenerateID(): cv.declare_id(ADCSensor),
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cv.Required(CONF_PIN): validate_adc_pin,
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cv.SplitDefault(CONF_ATTENUATION, esp32="0db"): cv.All(
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cv.only_on_esp32, cv.enum(ATTENUATION_MODES, lower=True)
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),
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}
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)
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.extend(cv.polling_component_schema("60s"))
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)
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async def to_code(config):
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var = cg.new_Pvariable(config[CONF_ID])
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await cg.register_component(var, config)
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await sensor.register_sensor(var, config)
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if config[CONF_PIN] == "VCC":
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cg.add_define("USE_ADC_SENSOR_VCC")
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else:
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cg.add(var.set_pin(config[CONF_PIN]))
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if CONF_ATTENUATION in config:
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cg.add(var.set_attenuation(config[CONF_ATTENUATION]))
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