Merge pull request #272 from sti0/feature/lwz-dewpoint

Add dewpoint temperatures for LWZ
pail23 · Jul 4, 2024 · e548b9c · e548b9c
2 parents c68e370 + a1ae4ec
commit e548b9c
Showing 1 changed file with 14 additions and 3 deletions.
diff --git a/custom_components/stiebel_eltron_isg/lwz_coordinator.py b/custom_components/stiebel_eltron_isg/lwz_coordinator.py
@@ -38,6 +38,8 @@
     CONSUMED_WATER_HEATING,
     CONSUMED_WATER_HEATING_TODAY,
     CONSUMED_WATER_HEATING_TOTAL,
+    DEWPOINT_TEMPERATURE_HK1,
+    DEWPOINT_TEMPERATURE_HK2,
     ECO_TEMPERATURE_TARGET_HK1,
     ECO_TEMPERATURE_TARGET_HK2,
     ECO_WATER_TEMPERATURE_TARGET,
@@ -222,11 +224,20 @@ async def read_modbus_system_values(self) -> dict:
             result[EXTRACT_AIR_ACTUAL_FAN_SPEED] = decoder.decode_16bit_uint()
             result[EXTRACT_AIR_TARGET_FLOW_RATE] = decoder.decode_16bit_uint()
             result[EXTRACT_AIR_HUMIDITY] = decoder.decode_16bit_uint()
-            # skip 23-30
-            decoder.skip_bytes(16)  #
+            # skip 23-24
+            decoder.skip_bytes(4)
+            # 25-26
+            result[DEWPOINT_TEMPERATURE_HK1] = get_isg_scaled_value(
+                decoder.decode_16bit_int()
+            )
+            result[DEWPOINT_TEMPERATURE_HK2] = get_isg_scaled_value(
+                decoder.decode_16bit_int()
+            )
+            # skip 27-30
+            decoder.skip_bytes(8)
             # 31
             compressor_starts_high = decoder.decode_16bit_uint()
-            decoder.skip_bytes(4)  #
+            decoder.skip_bytes(4)
             compressor_starts_low = decoder.decode_16bit_uint()
             if compressor_starts_high == 32768:
                 result[COMPRESSOR_STARTS] = compressor_starts_high