Today I tested the DIN MIDI input on the main board and implemented serial MIDI in the OPL Studio code. Code wise this is not a huge update, but this puts another check in the box for another item on my to do list. Next to the serial MIDI code I've also started on a controller for the front panel that for now will only handle the button lights. I made a demo video to show the front panel lights blink in tune with the music and the MIDI data is of course coming through the DIN plug.