LED-Statusanzeige für SuniStick ergänzt

- Grüne LED leuchtet wenn Modbus-Kommunikation mit Wechselrichter aktiv (on_online/on_offline)
- Blaue LED blinkt kurz (200ms) bei jedem Datenabruf vom Wechselrichter (on_value + script)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Growatt MIC 1500 TL-X/Growatt MIC 1500 TL-X.yaml

@@ -54,6 +54,20 @@ modbus_controller:
     address: 1
     modbus_id: modbus1
     setup_priority: -10
+    on_online:
+      then:
+        - output.turn_on: light_gr
+    on_offline:
+      then:
+        - output.turn_off: light_gr
+
+script:
+  - id: blink_blue
+    mode: single
+    then:
+      - output.turn_on: light_bl
+      - delay: 200ms
+      - output.turn_off: light_bl
 
 sensor:
   # --- PV Eingang ---
@@ -70,6 +84,9 @@ sensor:
     accuracy_decimals: 1
     filters:
       - multiply: 0.1
+    on_value:
+      then:
+        - script.execute: blink_blue
 
   - platform: modbus_controller
     name: "PV Current"

Growatt SPH 5000 TL3/Growatt SPH 5000 TL3-BH-UP.yaml

@@ -54,6 +54,20 @@ modbus_controller:
     address: 1
     modbus_id: modbus1
     setup_priority: -10
+    on_online:
+      then:
+        - output.turn_on: light_gr
+    on_offline:
+      then:
+        - output.turn_off: light_gr
+
+script:
+  - id: blink_blue
+    mode: single
+    then:
+      - output.turn_on: light_bl
+      - delay: 200ms
+      - output.turn_off: light_bl
 
 sensor:
   # --- PV Eingang ---
@@ -70,6 +84,9 @@ sensor:
     accuracy_decimals: 1
     filters:
       - multiply: 0.1
+    on_value:
+      then:
+        - script.execute: blink_blue
 
   - platform: modbus_controller
     name: "PV1 Current"