ABeardedSwede

@@ABeardedSwede, here's a sample code (this is what I used for Tindie video.)
 
This code has some extra things that you don't rally need.
To send MIDI, all you need is a circular buffer to which you add necessary number of bytes for each MIDI event.
 
midi_arp_with_adc.cmidi_arpeggiator.hmidi_constants.h