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55 lines
1.7 KiB
Python
55 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.components import sensor
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from esphome.const import (
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CONF_SENSOR,
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STATE_CLASS_MEASUREMENT,
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UNIT_OHM,
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ICON_FLASH,
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CONF_ID,
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)
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resistance_ns = cg.esphome_ns.namespace("resistance")
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ResistanceSensor = resistance_ns.class_("ResistanceSensor", cg.Component, sensor.Sensor)
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CONF_REFERENCE_VOLTAGE = "reference_voltage"
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CONF_CONFIGURATION = "configuration"
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CONF_RESISTOR = "resistor"
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ResistanceConfiguration = resistance_ns.enum("ResistanceConfiguration")
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CONFIGURATIONS = {
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"DOWNSTREAM": ResistanceConfiguration.DOWNSTREAM,
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"UPSTREAM": ResistanceConfiguration.UPSTREAM,
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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_OHM,
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icon=ICON_FLASH,
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accuracy_decimals=1,
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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(ResistanceSensor),
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cv.Required(CONF_SENSOR): cv.use_id(sensor.Sensor),
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cv.Required(CONF_CONFIGURATION): cv.enum(CONFIGURATIONS, upper=True),
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cv.Required(CONF_RESISTOR): cv.resistance,
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cv.Optional(CONF_REFERENCE_VOLTAGE, default="3.3V"): cv.voltage,
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}
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)
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.extend(cv.COMPONENT_SCHEMA)
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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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sens = await cg.get_variable(config[CONF_SENSOR])
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cg.add(var.set_sensor(sens))
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cg.add(var.set_configuration(config[CONF_CONFIGURATION]))
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cg.add(var.set_resistor(config[CONF_RESISTOR]))
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cg.add(var.set_reference_voltage(config[CONF_REFERENCE_VOLTAGE]))
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