My cherry board arrived today! So, how is the TRS socket wired? Is it MIDI type A or B? For sustain, I suppose a normally open pedal that closes between tip and sleeve will work… What about an expression pedal; shall the wiper be connected to tip, ring or sleeve?
Good to hear, welcome on this forum!
The MIDI TRS port follows the official standard, so type A.
For sustain I plan on making it configurable or auto-detect, dependent on the state on insertion.
Expression pedals should have the wiper connected to the tip, ‘TRS’ in the expressionpedals.com list.
Note that neither of those functions is implemented yet in the firmware, that will come after all boards are shipped.