WTH is this...

Shield/dock/whatever for MiSTeryNano project (nano tang 20k + M0S dock)
Ports on this is just MIDI-out and Joystick only (no level shifters for mice)
Resistors R1/R2 may need different values 100% THT so low cost to produce

WARNING

YMMV check before use, proceed with caution etc etc as I may have messed/missed something there...

Thanks

To Till for patiently answering my tech questions!

notes

If you use midi R1/R2 100ohm C1 100nF