@dc42 thanks david, i totally forgot that it is 3.3v, i connect to exp.heater5 and gnd, that was my mistake. is there a pin on the expansion post to turn on the leds without the use of expansion?
@fxstein For info, prior to gen 3, I think the defaults are X0, Y1, Z2 and every driver after that defaults to being an extruder. So that includes any other drivers on the main board and all drivers on any expansion board (Duex2 or Duex5).
