Unique Ids for August entities to allow renames

homeassistant/components/august/binary_sensor.py

@@ -144,6 +144,14 @@ def update(self):
         from august.lock import LockDoorStatus
         self._state = self._state == LockDoorStatus.OPEN
 
+    @property
+    def unique_id(self) -> str:
+        """Get the unique of the door open binary sensor."""
+        return '{:s}_{:s}'.format(self._door.device_id,
+                                  SENSOR_TYPES_DOOR[self._sensor_type][0]
+                                  .lower())
+
+
 
 class AugustDoorbellBinarySensor(BinarySensorDevice):
     """Representation of an August binary sensor."""
@@ -182,3 +190,9 @@ def update(self):
         state_provider = SENSOR_TYPES_DOORBELL[self._sensor_type][2]
         self._state = state_provider(self._data, self._doorbell)
         self._available = self._doorbell.is_online
+    @property
+    def unique_id(self) -> str:
+        """Get the unique id of the doorbell sensor."""
+        return '{:s}_{:s}'.format(self._doorbell.device_id,
+                                  SENSOR_TYPES_DOORBELL[self._sensor_type][0]
+                                  .lower())

homeassistant/components/august/camera.py

@@ -74,3 +74,8 @@ def camera_image(self):
                                                timeout=self._timeout).content
 
         return self._image_content
+
+    @property
+    def unique_id(self) -> str:
+        """Get the unique id of the camera."""
+        return '{:s}_camera'.format(self._doorbell.device_id)

homeassistant/components/august/lock.py

@@ -95,3 +95,8 @@ def device_state_attributes(self):
         return {
             ATTR_BATTERY_LEVEL: self._lock_detail.battery_level,
         }
+
+    @property
+    def unique_id(self) -> str:
+        """Get the unique id of the lock."""
+        return '{:s}_lock'.format(self._lock.device_id)