All functions have not yet been verified on an actual device.
The microcontroller is one of the following: Pro Micro, Raspberry Pi Pico, or Xiao RP2040.
The key matrix is using duplex matrix.
You can use a rotary encoder or a joystick.
The joystick is one of the following: ALPS RKJXV122400R, Nintendo Switch Joystick for Joy-Cons, or Sparkfan joystick.
You may be able to use a trackball.
| Pro Micro | Raspberry Pi Pico | Xiao RP2040 | |
|---|---|---|---|
| Upper left key switch | F5 to D4 | GP9 to GP2 | GP6 to GP26 |
| Lower left key switch | F5 to C6 | GP9 to GP3 | GP6 to GP27 |
| Upper middle key switch | D4 to F6 | GP2 to GP10 | GP26 to GP7 |
| Lower middle key switch | C6 to F6 | GP3 to GP10 | GP27 to GP7 |
| Upper right key switch | D4 to F5 | GP2 to GP9 | GP26 to GP6 |
| Lower right key switch | C6 to F5 | GP3 to GP9 | GP27 to GP6 |
| Pro Micro | Raspberry Pi Pico | Xiao RP2040 | |
|---|---|---|---|
| A | D1 | GP20 | No assign |
| B | D0 | GP21 | No assign |
| Push switch | B6 | GP22 | No assign |
| Pro Micro | Raspberry Pi Pico | Xiao RP2040 | |
|---|---|---|---|
| Horizontal | D1 | GP20 | No assign |
| Vertical | D0 | GP21 | No assign |
| Push switch | B6 | GP22 | No assign |
| Pro Micro | Raspberry Pi Pico | Xiao RP2040 | |
|---|---|---|---|
| MISO | B3 | GP16 | No assign |
| MOSI | B2 | GP19 | No assign |
| SCLK | B1 | GP18 | No assign |
| NCS | F7 | GP17 | No assign |