Use entity class attributes for aurora_abb_power (#52692)

homeassistant/components/aurora_abb_powerone/sensor.py

@@ -51,32 +51,13 @@ class AuroraABBSolarPVMonitorSensor(SensorEntity):
     """Representation of a Sensor."""
 
     _attr_state_class = STATE_CLASS_MEASUREMENT
+    _attr_unit_of_measurement = POWER_WATT
+    _attr_device_class = DEVICE_CLASS_POWER
 
     def __init__(self, client, name, typename):
         """Initialize the sensor."""
-        self._name = f"{name} {typename}"
+        self._attr_name = f"{name} {typename}"
         self.client = client
-        self._state = None
-
-    @property
-    def name(self):
-        """Return the name of the sensor."""
-        return self._name
-
-    @property
-    def state(self):
-        """Return the state of the sensor."""
-        return self._state
-
-    @property
-    def unit_of_measurement(self):
-        """Return the unit of measurement."""
-        return POWER_WATT
-
-    @property
-    def device_class(self):
-        """Return the device class."""
-        return DEVICE_CLASS_POWER
 
     def update(self):
         """Fetch new state data for the sensor.
@@ -87,8 +68,7 @@ class AuroraABBSolarPVMonitorSensor(SensorEntity):
             self.client.connect()
             # read ADC channel 3 (grid power output)
             power_watts = self.client.measure(3, True)
-            self._state = round(power_watts, 1)
-            # _LOGGER.debug("Got reading %fW" % self._state)
+            self._attr_state = round(power_watts, 1)
         except AuroraError as error:
             # aurorapy does not have different exceptions (yet) for dealing
             # with timeout vs other comms errors.
@@ -102,7 +82,7 @@ class AuroraABBSolarPVMonitorSensor(SensorEntity):
                 _LOGGER.debug("No response from inverter (could be dark)")
             else:
                 raise error
-            self._state = None
+            self._attr_state = None
         finally:
             if self.client.serline.isOpen():
                 self.client.close()