diff --git a/avr/devices/c03/main/TODO b/avr/devices/c03/main/TODO
index 28ad382..8c52616 100644
--- a/avr/devices/c03/main/TODO
+++ b/avr/devices/c03/main/TODO
@@ -3,3 +3,25 @@
 EEPROM dump
 RAM dump
 
+LIGHT
+- color 1 (EDIT)
+- color 2 (EDIT)
+- color 3 (EDIT)
+- color 4 (EDIT)
+- mode
+  - on
+  - off
+  - auto
+
+
+VENTILATOR
+- current speeds
+- step 1 (EDIT)
+- ...
+- step n (EDIT)
+
+
+new widgets:
+- h-slider
+- v-slider
+