wired up arduinoboy on a bread board today everything looks right. I power on my gb and get the led sequence and double flash. hit some midi notes to mgb and nothing...try to sync lsdj...wait nothing. any ideas?
check the optoisolator circuit. Flip the 2 wires that come from the midi jack... If that doesn't work make sure the diode is in the right way... If that doesn't work.. Check to make sure the optoisolator is hooked up right... If that doesn't work try getting a laptop and make some sexy hiphop.