[bthome] Use existing device class constants

Refactored to use ESPHome's existing DEVICE_CLASS_* constants instead
of creating duplicate custom constants. This makes the component more
consistent with the rest of ESPHome and reduces code duplication.

Changes:
- Import DEVICE_CLASS_* constants from esphome.const
- Map device classes to BTHome object IDs in dictionaries
- Remove custom CONF_* duplicates (battery, temperature, motion, etc.)
- Use standard device class strings ("temperature", "humidity", etc.)

esphome/components/bthome/__init__.py

@@ -4,13 +4,38 @@ from esphome.components.esp32 import add_idf_sdkconfig_option
 from esphome.components.esp32_ble import CONF_BLE_ID
 import esphome.config_validation as cv
 from esphome.const import (
+    CONF_BINARY_SENSOR,
     CONF_ID,
-    CONF_BATTERY_LEVEL,
-    CONF_HUMIDITY,
-    CONF_ILLUMINANCE,
-    CONF_PRESSURE,
-    CONF_TEMPERATURE,
     CONF_TX_POWER,
+    DEVICE_CLASS_BATTERY,
+    DEVICE_CLASS_BATTERY_CHARGING,
+    DEVICE_CLASS_CARBON_DIOXIDE,
+    DEVICE_CLASS_CARBON_MONOXIDE,
+    DEVICE_CLASS_COLD,
+    DEVICE_CLASS_CURRENT,
+    DEVICE_CLASS_DOOR,
+    DEVICE_CLASS_EMPTY,
+    DEVICE_CLASS_ENERGY,
+    DEVICE_CLASS_GARAGE_DOOR,
+    DEVICE_CLASS_HUMIDITY,
+    DEVICE_CLASS_ILLUMINANCE,
+    DEVICE_CLASS_LIGHT,
+    DEVICE_CLASS_LOCK,
+    DEVICE_CLASS_MOISTURE,
+    DEVICE_CLASS_MOTION,
+    DEVICE_CLASS_OCCUPANCY,
+    DEVICE_CLASS_PM10,
+    DEVICE_CLASS_PM25,
+    DEVICE_CLASS_POWER,
+    DEVICE_CLASS_PRESSURE,
+    DEVICE_CLASS_SMOKE,
+    DEVICE_CLASS_SPEED,
+    DEVICE_CLASS_TEMPERATURE,
+    DEVICE_CLASS_TIMESTAMP,
+    DEVICE_CLASS_VOLATILE_ORGANIC_COMPOUNDS,
+    DEVICE_CLASS_VOLTAGE,
+    DEVICE_CLASS_WEIGHT,
+    DEVICE_CLASS_WINDOW,
 )
 from esphome.core import TimePeriod
 
@@ -33,96 +58,44 @@ CONF_MIN_INTERVAL = "min_interval"
 CONF_MAX_INTERVAL = "max_interval"
 CONF_SENSOR_TYPE = "type"
 
-# Sensor type constants
+# BTHome object IDs for sensors (mapping from device class to BTHome object ID)
-CONF_BATTERY = "battery"
+SENSOR_DEVICE_CLASS_TO_OBJECT_ID = {
-CONF_CO2 = "co2"
+    DEVICE_CLASS_BATTERY: 0x01,
-CONF_COUNT = "count"
+    DEVICE_CLASS_TEMPERATURE: 0x02,  # 0.01°C
-CONF_CURRENT = "current"
+    DEVICE_CLASS_HUMIDITY: 0x03,
-CONF_DEWPOINT = "dewpoint"
+    DEVICE_CLASS_PRESSURE: 0x04,
-CONF_DISTANCE = "distance"
+    DEVICE_CLASS_ILLUMINANCE: 0x05,
-CONF_ENERGY = "energy"
+    DEVICE_CLASS_WEIGHT: 0x06,  # mass in kg
-CONF_GAS = "gas"
+    "dewpoint": 0x08,  # Not a standard device class
-CONF_MASS = "mass"
+    DEVICE_CLASS_ENERGY: 0x0A,
-CONF_MOISTURE = "moisture"
+    DEVICE_CLASS_POWER: 0x0B,
-CONF_PM25 = "pm2_5"
+    DEVICE_CLASS_VOLTAGE: 0x0C,
-CONF_PM10 = "pm10"
+    DEVICE_CLASS_PM25: 0x0D,
-CONF_POWER = "power"
+    DEVICE_CLASS_PM10: 0x0E,
-CONF_ROTATION = "rotation"
+    DEVICE_CLASS_CARBON_DIOXIDE: 0x12,
-CONF_SPEED = "speed"
+    DEVICE_CLASS_VOLATILE_ORGANIC_COMPOUNDS: 0x13,  # TVOC
-CONF_TIMESTAMP = "timestamp"
+    DEVICE_CLASS_MOISTURE: 0x14,
-CONF_TVOC = "tvoc"
+    DEVICE_CLASS_CURRENT: 0x43,
-CONF_VOLTAGE = "voltage"
+    DEVICE_CLASS_SPEED: 0x44,
-CONF_VOLUME = "volume"
+    DEVICE_CLASS_TIMESTAMP: 0x50,
-
-# Binary sensor types
-CONF_BINARY_SENSOR = "binary_sensor"
-CONF_BATTERY_LOW = "battery_low"
-CONF_BATTERY_CHARGING = "battery_charging"
-CONF_CO = "carbon_monoxide"
-CONF_COLD = "cold"
-CONF_CONNECTIVITY = "connectivity"
-CONF_DOOR = "door"
-CONF_GARAGE_DOOR = "garage_door"
-CONF_GAS_DETECTED = "gas"
-CONF_GENERIC_BOOLEAN = "generic_boolean"
-CONF_HEAT = "heat"
-CONF_LIGHT = "light"
-CONF_LOCK = "lock"
-CONF_MOISTURE_DETECTED = "moisture"
-CONF_MOTION = "motion"
-CONF_MOVING = "moving"
-CONF_OCCUPANCY = "occupancy"
-CONF_OPENING = "opening"
-CONF_PLUG = "plug"
-CONF_POWER_ON = "power"
-CONF_PRESENCE = "presence"
-CONF_PROBLEM = "problem"
-CONF_RUNNING = "running"
-CONF_SAFETY = "safety"
-CONF_SMOKE = "smoke"
-CONF_SOUND = "sound"
-CONF_TAMPER = "tamper"
-CONF_VIBRATION = "vibration"
-CONF_WINDOW = "window"
-
-# BTHome object IDs for sensors
-SENSOR_OBJECT_IDS = {
-    CONF_BATTERY: 0x01,
-    CONF_TEMPERATURE: 0x02,  # 0.01°C
-    CONF_HUMIDITY: 0x03,
-    CONF_PRESSURE: 0x04,
-    CONF_ILLUMINANCE: 0x05,
-    CONF_MASS: 0x06,
-    CONF_DEWPOINT: 0x08,
-    CONF_ENERGY: 0x0A,
-    CONF_POWER: 0x0B,
-    CONF_VOLTAGE: 0x0C,
-    CONF_PM25: 0x0D,
-    CONF_PM10: 0x0E,
-    CONF_CO2: 0x12,
-    CONF_TVOC: 0x13,
-    CONF_MOISTURE: 0x14,
-    CONF_CURRENT: 0x43,
-    CONF_SPEED: 0x44,
-    CONF_TIMESTAMP: 0x50,
 }
 
-# BTHome object IDs for binary sensors
+# BTHome object IDs for binary sensors (mapping from device class to BTHome object ID)
-BINARY_SENSOR_OBJECT_IDS = {
+BINARY_SENSOR_DEVICE_CLASS_TO_OBJECT_ID = {
-    CONF_GENERIC_BOOLEAN: 0x0F,
+    DEVICE_CLASS_EMPTY: 0x0F,  # generic boolean
-    CONF_POWER_ON: 0x10,
+    "power": 0x10,  # power state (not DEVICE_CLASS_POWER which is for sensors)
-    CONF_BATTERY_LOW: 0x15,
+    "battery_low": 0x15,  # Not a standard device class
-    CONF_BATTERY_CHARGING: 0x16,
+    DEVICE_CLASS_BATTERY_CHARGING: 0x16,
-    CONF_CO: 0x17,
+    DEVICE_CLASS_CARBON_MONOXIDE: 0x17,
-    CONF_COLD: 0x18,
+    DEVICE_CLASS_COLD: 0x18,
-    CONF_DOOR: 0x1A,
+    DEVICE_CLASS_DOOR: 0x1A,
-    CONF_GARAGE_DOOR: 0x1B,
+    DEVICE_CLASS_GARAGE_DOOR: 0x1B,
-    CONF_LIGHT: 0x1E,
+    DEVICE_CLASS_LIGHT: 0x1E,
-    CONF_LOCK: 0x1F,
+    DEVICE_CLASS_LOCK: 0x1F,
-    CONF_MOTION: 0x21,
+    DEVICE_CLASS_MOTION: 0x21,
-    CONF_OCCUPANCY: 0x23,
+    DEVICE_CLASS_OCCUPANCY: 0x23,
-    CONF_SMOKE: 0x29,
+    DEVICE_CLASS_SMOKE: 0x29,
-    CONF_WINDOW: 0x2D,
+    DEVICE_CLASS_WINDOW: 0x2D,
 }
 
 
@@ -171,7 +144,7 @@ CONFIG_SCHEMA = cv.All(
                 cv.Schema(
                     {
                         cv.Required(CONF_SENSOR_TYPE): cv.one_of(
-                            *SENSOR_OBJECT_IDS.keys(), lower=True
+                            *SENSOR_DEVICE_CLASS_TO_OBJECT_ID.keys(), lower=True
                         ),
                         cv.Required(CONF_ID): cv.use_id(sensor.Sensor),
                     }
@@ -181,7 +154,7 @@ CONFIG_SCHEMA = cv.All(
                 cv.Schema(
                     {
                         cv.Required(CONF_SENSOR_TYPE): cv.one_of(
-                            *BINARY_SENSOR_OBJECT_IDS.keys(), lower=True
+                            *BINARY_SENSOR_DEVICE_CLASS_TO_OBJECT_ID.keys(), lower=True
                         ),
                         cv.Required(CONF_ID): cv.use_id(binary_sensor.BinarySensor),
                     }
@@ -215,7 +188,7 @@ async def to_code(config):
     if CONF_MEASUREMENT in config:
         for measurement in config[CONF_MEASUREMENT]:
             sensor_type = measurement[CONF_SENSOR_TYPE]
-            object_id = SENSOR_OBJECT_IDS[sensor_type]
+            object_id = SENSOR_DEVICE_CLASS_TO_OBJECT_ID[sensor_type]
             sens = await cg.get_variable(measurement[CONF_ID])
             cg.add(var.add_measurement(sens, object_id))
 
@@ -223,7 +196,7 @@ async def to_code(config):
     if CONF_BINARY_SENSOR in config:
         for measurement in config[CONF_BINARY_SENSOR]:
             sensor_type = measurement[CONF_SENSOR_TYPE]
-            object_id = BINARY_SENSOR_OBJECT_IDS[sensor_type]
+            object_id = BINARY_SENSOR_DEVICE_CLASS_TO_OBJECT_ID[sensor_type]
             sens = await cg.get_variable(measurement[CONF_ID])
             cg.add(var.add_binary_measurement(sens, object_id))