Dear all, I am new to this forum, and I have recently purchased a NXT MMX multiplexer. I am trying to drive a 12-volt DC motor from the multiplexer, I need only clockwise / counter-clockwise directions, and do not need to control the motor speed. I do not know which pins (wires) from the multiplexer's motor port I should use for this. Could anyone tell me? Thanks, Bob
take a look at following page - http://www.josepino.com/lego/hacking_lego_nxt near the bottom of this page you will find the pins for the NXT motor, model your design based on these pins.