The Devil's in the Details
One thing I have discovered during my time on this blog is that you folks love connecting things to other things with Midi.
My original Midi for the Arduino article was written a few years back when I was a mere blogging neophyte so I figured it was time for a refresh.
I've seen a lot of articles on how to build a Midi circuit, but haven't found many on how it works. So let's examine Midi circuitry in excruciating detail.
In the video below we'll get to know the 6n138 Optocoupler, examine a Midi Byte, and try to figure out what that weird resistor on Pin 7 actually does!