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79 lines
2.4 KiB
Python
79 lines
2.4 KiB
Python
import esphome.codegen as cg
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import esphome.config_validation as cv
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from esphome.components import sensor, voltage_sampler
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from esphome.const import (
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CONF_GAIN,
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CONF_MULTIPLEXER,
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DEVICE_CLASS_VOLTAGE,
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ICON_EMPTY,
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STATE_CLASS_MEASUREMENT,
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UNIT_VOLT,
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CONF_ID,
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)
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from . import ads1115_ns, ADS1115Component
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DEPENDENCIES = ["ads1115"]
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ADS1115Multiplexer = ads1115_ns.enum("ADS1115Multiplexer")
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MUX = {
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"A0_A1": ADS1115Multiplexer.ADS1115_MULTIPLEXER_P0_N1,
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"A0_A3": ADS1115Multiplexer.ADS1115_MULTIPLEXER_P0_N3,
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"A1_A3": ADS1115Multiplexer.ADS1115_MULTIPLEXER_P1_N3,
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"A2_A3": ADS1115Multiplexer.ADS1115_MULTIPLEXER_P2_N3,
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"A0_GND": ADS1115Multiplexer.ADS1115_MULTIPLEXER_P0_NG,
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"A1_GND": ADS1115Multiplexer.ADS1115_MULTIPLEXER_P1_NG,
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"A2_GND": ADS1115Multiplexer.ADS1115_MULTIPLEXER_P2_NG,
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"A3_GND": ADS1115Multiplexer.ADS1115_MULTIPLEXER_P3_NG,
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}
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ADS1115Gain = ads1115_ns.enum("ADS1115Gain")
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GAIN = {
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"6.144": ADS1115Gain.ADS1115_GAIN_6P144,
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"4.096": ADS1115Gain.ADS1115_GAIN_4P096,
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"2.048": ADS1115Gain.ADS1115_GAIN_2P048,
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"1.024": ADS1115Gain.ADS1115_GAIN_1P024,
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"0.512": ADS1115Gain.ADS1115_GAIN_0P512,
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"0.256": ADS1115Gain.ADS1115_GAIN_0P256,
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}
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def validate_gain(value):
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if isinstance(value, float):
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value = f"{value:0.03f}"
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elif not isinstance(value, str):
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raise cv.Invalid(f'invalid gain "{value}"')
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return cv.enum(GAIN)(value)
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ADS1115Sensor = ads1115_ns.class_(
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"ADS1115Sensor", sensor.Sensor, cg.PollingComponent, voltage_sampler.VoltageSampler
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)
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CONF_ADS1115_ID = "ads1115_id"
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CONFIG_SCHEMA = (
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sensor.sensor_schema(
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UNIT_VOLT, ICON_EMPTY, 3, DEVICE_CLASS_VOLTAGE, 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(ADS1115Sensor),
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cv.GenerateID(CONF_ADS1115_ID): cv.use_id(ADS1115Component),
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cv.Required(CONF_MULTIPLEXER): cv.enum(MUX, upper=True, space="_"),
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cv.Required(CONF_GAIN): validate_gain,
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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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paren = await cg.get_variable(config[CONF_ADS1115_ID])
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var = cg.new_Pvariable(config[CONF_ID], paren)
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await sensor.register_sensor(var, config)
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await cg.register_component(var, config)
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cg.add(var.set_multiplexer(config[CONF_MULTIPLEXER]))
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cg.add(var.set_gain(config[CONF_GAIN]))
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cg.add(paren.register_sensor(var))
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