Try

Author: bouwew

plugwise/helper.py

@@ -73,6 +73,8 @@ class SmileHelper(SmileCommon):
     def __init__(self) -> None:
         """Set the constructor for this class."""
         super().__init__()
+        self._existing_appliances: list[str] = []
+        self._new_appliances: list[str] = []
         self._endpoint: str
         self._elga: bool
         self._is_thermostat: bool
@@ -93,7 +95,7 @@ def item_count(self) -> int:
         """Return the item-count."""
         return self._count
 
-    def _all_appliances(self) -> None:
+    def _all_appliances(self) -> bool:
         """Collect all appliances with relevant info.
 
         Also, collect the P1 smartmeter info from a location
@@ -147,14 +149,23 @@ def _all_appliances(self) -> None:
             if not (appl := self._appliance_info_finder(appl, appliance)):
                 continue
 
+            if appl.entity_id in self._existing_appliances:
+                continue
+            else:
+                self._new_appliances.append(appl.entity_id)
+
             self._create_gw_entities(appl)
 
+        if not self._new_appliances:
+            return False
+
         # A smartmeter is not present as an appliance, add it specifically
         if self.smile.type == "power" or self.smile.anna_p1:
             self._add_p1_smartmeter_info()
 
         # Sort the gw_entities
         self._reorder_devices()
+        return True
 
     def _add_p1_smartmeter_info(self) -> None:
         """For P1 collect the smartmeter info from the Home/building location and add it as an entity.