Further splitting into the correct parts

esphome/device_packages/sonoff-tx-series.yaml

@@ -1,6 +1,14 @@
 esp8266:
   board: esp01_1m
 
+api:
+   on_client_connected:
+    then:
+      - light.turn_on: blue_led_light
+  on_client_disconnected:
+    then:
+      - light.turn_off: blue_led_light
+
 binary_sensor:
   - platform: gpio
     pin:
@@ -24,6 +32,7 @@ light:
   - platform: monochromatic
     name: "${friendly_devicename} WiFi LED"
     output: blue_led
+    internal: True
     id: blue_led_light
   - platform: binary
     name: "${friendly_devicename} Licht"