Yes, that makes sense given the C2 pin is set to -1 in your code. Which connector are you using for Case_Lights? I'll do some experimenting. Maybe Robo took your methods to heart if the R2 lights are now controllable out of the box. I liked the RGB strip control I saw at the end of your config.h, however that was for a later investigation. The C2 LEDs come on whenever the unit is powered. That could be done with just a power pin. Firmware changes to avoid wiring changes seemed straight forward. Would there happen to be mapping of these pin numbers to I/O connectors? Or at least mapping from a board somewhat similar?