A custom 12-key macropad.
- Seeed XIAO Rp2040
- Per-key RGB
- 32x128 OLED Display
- 3DP Case
Firmware:
- Acts as a numpad
- Led pulses under key when pressed
- Oled plays cat gif forever
Note: To upload a custom animation, you can use the gifToBitmap.py file to convert any gif (as long as its 32px tall and less than or equal to 128px wide. Then you must upload it to the animation_bmps folder on the rp2040.)
Demo link: link
Firmware located in the Deploy folder.
KiCad Layout
PCB 3D View
Case CAD
| Part | Quantity |
|---|---|
| Seeed XIAO RP2040 | 1 |
| MX-Style Switches | 12 |
| Through-hole 1N4148 Diodes | 12 |
| SK6812 MINI-E LEDs | 12 |
| 0.91" OLED Display | 1 |
| Blank DSA Keycaps | 12 |
| M3×16 mm Screws | 4 |
| M3×5 mm Heatset Inserts | 4 |
| Case Top | 1 |
| Case Bottom | 1 |