I understand teams using LEDs must be cautious when powering per
I currently use an Arduino to make calculations for my LEDs - I use RGB LED lights. This Arduino is powered through the microcontroller and there are no extra power sources. At the Ga State competition I was at I was not allowed to use my lights, because it was a non-vex computer. However I have not found a (VRC) rule that disallows separate computers provided that they are powered through the microcontroller and is purely decorative, and provides no functions (no status lights, voltage lights etc.).