A very easy project.

You will need:

o) An arduino UNO/MICRO/NANO etc, i will use the micro as always

o) A diode, a resistor, and an optocoupler to make sure nothing gets
damaged in case the midi plug is faulty or has a wrong pinout.

o) A midi plug obviosly 🙂

Get the midi library from the arduino page, and build it like in the schematic:


Read the midi library walkthrough on the arduino page, download the sample codes, and read the documentation in the code to see whats going on.


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