Summary

Case for Adruino Micro and Encoder module.
Connections:
Encoder - Arduino:
   S1 - D3
   S2 - D2
   Key - D4
Arduino sketch is here – https://pastebin.com/8hv3GpTV

Turn Right - Forward
Turn Left - Backward
Press - Pause/Play
Press + turn right - volume up
Press + turn left - volume down

PLA or PET-G printed parts: BOTTOM, CAP, DIAL, FIX.
Part printed with TPU GRIP_FIX.3MF is glued on to reduce slip (optional).
Assembly the case with three countersunk screws + two screws for fixing the Arduino Micro board. Encoder is fixed with a nut from the kit.