I have my Ultimarc U-Trak LED installed. It's hooked up my IPAC Ultimate I/O led pins 1-3 and I have the ground hooked up to the a ground I'm not using for a trackball pin since I'm using usb.
I can't figure out how to get it to work. I'm trying with led Blinky, but getting nothing. Any good instructions? I'm hoping I don't have a dead led module.