I've got Arduino Pro Mini and I want to connect its RX/TX pins to external USB MIDI microcontroller, Altmustech AU-123 to be precise. Now, since that chip accepts 0-5V on MIDI In/Out pins, I am assuming it should be as straightforward as simply plugging those pins to Arduinos RX/TX. If I'm right, th…

Connecting Pro Mini to external MIDI chip

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