ESPHomeMarlin2/sensor.py

import esphome.codegen as cg
import esphome.config_validation as cv
from esphome import automation
from esphome.components import uart
from esphome.components import sensor
from esphome.const import (
    CONF_ID, 
    CONF_INDEX, 
    CONF_SENSORS, 
    CONF_HUMIDITY, 
    CONF_MODEL, 
    CONF_PIN, 
    CONF_TEMPERATURE, 
    STATE_CLASS_MEASUREMENT, 
    UNIT_CELSIUS, 
    UNIT_PERCENT, 
    DEVICE_CLASS_TEMPERATURE
)

CODEOWNERS = ["@jonatanrek"]

DEPENDENCIES = ['uart']

CONF_BED_TEMPERATURE = "bed_temperature"

Marlin2 = cg.esphome_ns.class_('Marlin2', cg.Component, sensor.Sensor, uart.UARTDevice)

CONFIG_SCHEMA = uart.UART_DEVICE_SCHEMA.extend(
    {
        cv.GenerateID(): cv.declare_id(Marlin2),
        cv.Optional(CONF_BED_TEMPERATURE): sensor.sensor_schema(
            unit_of_measurement=UNIT_CELSIUS,
            accuracy_decimals=1,
            device_class=DEVICE_CLASS_TEMPERATURE,
            state_class=STATE_CLASS_MEASUREMENT,
        ),
    }
)

async def to_code(config):
    var = cg.new_Pvariable(config[CONF_ID])
    await cg.register_component(var, config)
    await uart.register_uart_device(var, config)

    if CONF_BED_TEMPERATURE in config:
        await sensor.new_sensor(config[CONF_BED_TEMPERATURE])