Fix A3 white value (#309)

flux_led/base_device.py

@@ -809,6 +809,16 @@ def _set_raw_state(
             )
             return
 
+        if isinstance(self._protocol, ProtocolLEDENETAddressableA3):
+            if updated is not None:
+                self.raw_state = raw_state
+                return
+            # A3 uses a unique scale for warm white
+            self.raw_state = raw_state._replace(
+                warm_white=utils.A3WarmWhiteToByte(raw_state.warm_white)
+            )
+            return
+
         self.raw_state = raw_state
 
     def __str__(self) -> str:  # noqa: C901

flux_led/utils.py

@@ -124,6 +124,10 @@ def byteToPercent(byte: int) -> int:
     def percentToByte(percent: int) -> int:
         return int((max(0, min(100, percent)) * 255) / 100)
 
+    @staticmethod
+    def A3WarmWhiteToByte(val: int) -> int:
+        return round(((min(228, max(128, val)) - 128) * 255) / 100)
+
 
 def rgbwc_to_rgbcw(
     rgbwc_data: Tuple[int, int, int, int, int]

tests_aio.py

@@ -828,6 +828,20 @@ def _updated_callback(*args, **kwargs):
     assert transport.mock_calls == [
         call.write(bytearray(b"\xb0\xb1\xb2\xb3\x00\x01\x01\x03\x00\x03G\xffFZ"))
     ]
+    light._transition_complete_time = 0
+
+    light._aio_protocol.data_received(
+        b"\x81\xA3\x23\x61\x01\x32\x40\x40\x40\x80\x01\x00\x90\xAC"
+    )
+    assert light.raw_state.warm_white == 0
+    light._aio_protocol.data_received(
+        b"\x81\xA3\x23\x61\x01\x32\x40\x40\x40\xE4\x01\x00\x90\x10"
+    )
+    assert light.raw_state.warm_white == 255
+    light._aio_protocol.data_received(
+        b"\x81\xA3\x23\x61\x01\x32\x40\x40\x40\xB1\x01\x00\x90\xDD"
+    )
+    assert light.raw_state.warm_white == 125
 
 
 @pytest.mark.asyncio