February 22, 2024
Description
The 3x4 is a fully programmable macropad, powered by KMK on a RP2040 Zero. Below, you can find a full list of required parts you will need to complete this keyboard. On my Github you will find links that I personally used to purchase these parts. I am not affiliated with any of the links.
Handwiring might seem daunting, but it really isn't too bad since this board only has 12 keys. I hope this keyboard can start you on a journey to finding a keyboard that perfectly fits your needs.
Are you looking for a HHKB layout? I got you covered!
Required Parts
| Part | Qty | Description |
|---|---|---|
| RP2040 Zero | 1 | Micro controller board |
| MX-style switches of your choosing | 12 | I used Outemu Lemon/Limes. |
| 1N4148 Diodes | 12 | You need these for handwiring |
| M2 x 6mm hex female-to-female brass standoff (spacer) | 2 | This is what supports/holds down the plate and the case together |
| M2 x 6mm flat top screws | 2 | Plate-side that goes with the brass standoff |
| M2 x 6mm countersunk screws | 3 | Holdes the case and plate together. Also holds the MCU down. |
| M2 hex nut | 1 | Holds the MCU down |
License:
Creative Commons - Attribution - Non-Commercial
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