Fix ecowitt typing (#78171)

homeassistant/components/ecowitt/binary_sensor.py

@@ -68,4 +68,4 @@ class EcowittBinarySensorEntity(EcowittEntity, BinarySensorEntity):
     @property
     def is_on(self) -> bool:
         """Return true if the binary sensor is on."""
-        return self.ecowitt.value > 0
+        return bool(self.ecowitt.value)

homeassistant/components/ecowitt/diagnostics.py

@@ -25,13 +25,13 @@ async def async_get_device_diagnostics(
         "device": {
             "name": station.station,
             "model": station.model,
-            "frequency": station.frequency,
+            "frequency": station.frequence,
             "version": station.version,
         },
         "raw": ecowitt.last_values[station_id],
         "sensors": {
             sensor.key: sensor.value
-            for sensor in station.sensors
+            for sensor in ecowitt.sensors.values()
             if sensor.station.key == station_id
         },
     }

homeassistant/components/ecowitt/sensor.py

@@ -1,5 +1,8 @@
 """Support for Ecowitt Weather Stations."""
+from __future__ import annotations
+
 import dataclasses
+from datetime import datetime
 from typing import Final
 
 from aioecowitt import EcoWittListener, EcoWittSensor, EcoWittSensorTypes
@@ -242,6 +245,6 @@ class EcowittSensorEntity(EcowittEntity, SensorEntity):
         self.entity_description = description
 
     @property
-    def native_value(self) -> StateType:
+    def native_value(self) -> StateType | datetime:
         """Return the state of the sensor."""
         return self.ecowitt.value