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59 lines
1.9 KiB
Python
59 lines
1.9 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, spi
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from esphome.const import (
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CONF_ID,
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CONF_MAINS_FILTER,
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CONF_REFERENCE_RESISTANCE,
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CONF_RTD_NOMINAL_RESISTANCE,
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CONF_RTD_WIRES,
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DEVICE_CLASS_TEMPERATURE,
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ICON_EMPTY,
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STATE_CLASS_MEASUREMENT,
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UNIT_CELSIUS,
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)
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max31865_ns = cg.esphome_ns.namespace("max31865")
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MAX31865Sensor = max31865_ns.class_(
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"MAX31865Sensor", sensor.Sensor, cg.PollingComponent, spi.SPIDevice
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)
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MAX31865ConfigFilter = max31865_ns.enum("MAX31865ConfigFilter")
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FILTER = {
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"50HZ": MAX31865ConfigFilter.FILTER_50HZ,
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"60HZ": MAX31865ConfigFilter.FILTER_60HZ,
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}
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CONFIG_SCHEMA = (
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sensor.sensor_schema(
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UNIT_CELSIUS, ICON_EMPTY, 2, DEVICE_CLASS_TEMPERATURE, 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(MAX31865Sensor),
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cv.Required(CONF_REFERENCE_RESISTANCE): cv.All(
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cv.resistance, cv.Range(min=100, max=10000)
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),
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cv.Required(CONF_RTD_NOMINAL_RESISTANCE): cv.All(
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cv.resistance, cv.Range(min=100, max=1000)
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),
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cv.Optional(CONF_MAINS_FILTER, default="60HZ"): cv.enum(
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FILTER, upper=True, space=""
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),
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cv.Optional(CONF_RTD_WIRES, default=4): cv.int_range(min=2, max=4),
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}
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)
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.extend(cv.polling_component_schema("60s"))
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.extend(spi.spi_device_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 spi.register_spi_device(var, config)
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await sensor.register_sensor(var, config)
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cg.add(var.set_reference_resistance(config[CONF_REFERENCE_RESISTANCE]))
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cg.add(var.set_nominal_resistance(config[CONF_RTD_NOMINAL_RESISTANCE]))
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cg.add(var.set_filter(config[CONF_MAINS_FILTER]))
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cg.add(var.set_num_rtd_wires(config[CONF_RTD_WIRES]))
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