diff --git a/esphome/sleepingroom.yaml b/esphome/sleepingroom.yaml
index c6ad7dd..53dce75 100644
--- a/esphome/sleepingroom.yaml
+++ b/esphome/sleepingroom.yaml
@@ -57,6 +57,9 @@ output:
   - platform: ledc
     pin: GPIO18
     id: led_green
+  - platform: ledc
+    pin: GPIO19
+    id: led_blue
 
 # Initialize UART for Vindriktning sensor
 uart:
@@ -158,6 +161,12 @@ sensor:
   - platform: pm1006
     pm_2_5:
       name: "Feinstaub PM 2.5µm"
+# Analog photo diode voltage
+  - platform: adc
+    pin: 32
+    name: "Spannung Photodiode"
+    attenuation: 11db
+    update_interval: 10s
 
 # IR Receiver, dumps all received values into serial
 remote_receiver: