A 4x4 macropad, with backlit keys and a fully square design.
The macropad contains 16 keys, each backlit with an SK6812mini-e led. It is controlled by a Seeed XIAO RP2040 microcontroller using either kmk or qmk software. The switches will be Gateron Milky Yellows as they feel magnificent. On them there will be white keycaps on which I will make vynil stickers for when I decide on the actions that the keys will be doing.
A lot of people on the HackClub Slack have been against my design, and how I have placed the Xiao. I myself think its a great design choice, that won’t interfere with any other component because, in theory with pin headers commonly being 2 mm tall, I should have enough clearance to fit my components on the top and bottom part of the pcb with just enough to spare so that the RP2040 wouldn’t be touching anything.
| Quantity | Item | Cost | Link |
|---|---|---|---|
| 16 | Gateron Milky Yellow Switches | $8.32 | Link |
| 16 | Diodes SOD-123 | $1.56 | Link |
| 16 | SK6812mini-e Leds | $3.33 | Link |
| 1 | Seeed Xiao RP2040 | $8.75 | Link |
| 16 | See-through keycaps | $8.28 | Link |
| 1 | 3D printed case | N/A | N/A |
| 5 | M2 6mm Screws | $1.70 | Link |
| 5 | M2 8mm Standoffs | $3.30 | Link |
| 5 | Rubber Bumpers (feet) | $4.01 | Link |