Hi all, after trying to get a 6N136, then a 6N138 for MIDI to talk to my arduino Uno (rev 2 and 3) boards, I gave up and bought a Sparkfun MIDI shield...but still no joy. It worries me that the arduino can be programmed when the MIDI shield is in "run" mode, whereas when I built a homemade 6N138 in…

MIDI shield doesn't work

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