Hiya — my prototype illucia dtr ran wires right off a teensy, so that is also an option. If you order one without pins that’d get you there. You’d have to look at the arduino code to figure out which are the right pins to wire up to which jacks… but not too bad. Annoying to mount a teensy with no pins… but maybe there is a way depending on how you’re building it.
The PCBs are dead simple — mostly there were a way to mount the teensy, plus add a few resistors as very simple static protection for the jacks (which would otherwise directly expose the teensy pins to the outer world… but again I had that one first proto and I got away with it. IIRC the chip itself did have some minor degree of static protection)
If I had any PCBs left I’d offer you one but they’re gone.
I do have a pile of drilled enclosures if anyone wants them. I’m pretty busy lately but maybe could figure that out.
I’ll look into the Mac issues. Have just been busy with the start of the semester (I’ve been teaching some lately) and just have a billion things on the back burner. Sorry for ghostlife