this is a handwired macropad with a oled screen. It uses a rp2040 pro micro as the mcu and you can get the firmware here.

hardware parts needed are as listed below:

• x1 rp2040 pro micro
• x1 small oled screen
• x1 rotary encoder
• x19 mx style switches
• x19 1N4148 diodes
• x3 M3x 12 screws
• x3 M3x5x5 heatset inserts