Adafruit 12 channel 16 bit pwm led drivers adafruit 1455 p the adafruit 12 channel pwm led driver has remarkably high resolution pwm at 16 bits ideal if you want precise control of the led brightness each channel can drive 1 or more leds in series up to a v anode supply of 17v and you can control the current supplied by the constant current drivers the solder pads are cleverly laid out so that you can either drive 12 x individual leds or you can drive 4 x rgb leds and that makes 48 bits