2011-11-22, 12:39
Boblight uses the PWM outputs on the arduino. UNO has 6, mega has 14 I think. Each output is designated a color (red, green and blue). A single rgb led or strip requires 3 of these outputs (1 for each color), therefor the UNO needs 6 PWM outputs to control 2 LEDs or strips and mega needs 12 PWMs to control 4.