DIY sim racing wheel button board

This is a breakout board to be used with Arduino Pro Micro and MMJoy2 to create a cheap board for DIY sim racing steering wheel. The purpose of the board is to make wiring button matrix for DIY steering wheel dead easy.

The board outline has the dimension of the board you can use to design it into your own wheel.

This board has:
- 20 total buttons with JST 1.25mm connectors
- Any of these 20 buttons can be used for an encoder (so you can choose combo of buttons and encoders)
- 2 potentiometer/hall sensor input for clutch. (Or use dual clutch board to get dual clutch function)

Parts list:
- PCB board: the gerber file can be uploaded to OSHPark or JCBPCB to fabrication.
- 2pin and 3pin JST 1.25mm connector - https://www.aliexpress.com/item/4000898605030.html?spm=a2g0s.9042311.0.0.27424c4d8fkcUI
- Diode - https://www.aliexpress.com/item/32774047563.html?spm=a2g0s.9042311.0.0.27424c4dkzL45S