Avoid writing unifiprotect state when nothing has changed (#100439)

homeassistant/components/unifiprotect/button.py

@@ -193,3 +193,17 @@ class ProtectButton(ProtectDeviceEntity, ButtonEntity):
 
         if self.entity_description.ufp_press is not None:
             await getattr(self.device, self.entity_description.ufp_press)()
+
+    @callback
+    def _async_updated_event(self, device: ProtectModelWithId) -> None:
+        """Call back for incoming data that only writes when state has changed.
+
+        Only available is updated for these entities, and since the websocket
+        update for the device will trigger an update for all entities connected
+        to the device, we want to avoid writing state unless something has
+        actually changed.
+        """
+        previous_available = self._attr_available
+        self._async_update_device_from_protect(device)
+        if self._attr_available != previous_available:
+            self.async_write_ha_state()