2 layers142.5 × 106.3 mm
2 layers87.1 × 58.5 mm
Numpad
rek/keyboardsbuild notes and config for any keyboards i build
- Size
- 87.1 × 58.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 19
- Nets
- 52
- Pads
- 149
- Tracks, vias
- 75, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 26 Jun 2023
- Updated
- 2 Nov 2026
Overview
Numpad is an open-source printed circuit board by rek, from the rek/keyboards repository on GitHub. It is a 2-layer board of 87.1 × 58.5 mm with 19 parts on 52 nets, routed with 75 tracks and 0 vias.
Its parts include 9 diodes, 9 switches and 1 IC. It belongs with the RP2040 boards of this library.
README
README.mdKeebs
build notes and config for any keyboards i build
KiCad:
A nice intro: https://youtu.be/8WXpGTIbxlQ?si=IPm6OvvAeKLTbCmh
JLC Fabrication Toolkik Plugin
- Export Gerber
Firmware notes
Make sure you are running python 3.8+
python3 -m pip install --user qmk
apt install gcc-arm-none-eabi avrdude dfu-programmer dfu-util
pip install -U Pillow
qmk setup
qmk list-keyboards | grep xxxThen don't forget: https://docs.qmk.fm/faq_build#linux-udev-rules
Troubleshooting
- Cannot find the device?
- Make sure you are using a data USB cable
- Try USB-A not USB-C
- For example Arduino Nano will not show up using a C-C cable
Parts
19| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | Diode | Diode_SMD:D_SOD-123 | D1, D2, D3, D4, D5, D6, D7, D8, D9 |
| 9 | Keyswitch | PCM_Switch_Keyboard_Cherry_MX:SW_Cherry_MX_PCB_1.00u | S1, S2, S3, S4, S5, S6, S7, S8, S9 |
| 1 | Raspberry_Pi_Pico | Scotto MCU:Raspberry_Pi_Pico | U1 |
Questions
How big is the Numpad PCB?
It measures 87.1 × 58.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Numpad use?
19 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Numpad KiCad files?
From the rek/keyboards repository on GitHub, at the commit this page was made from: the board is 03 - numpad/numpad/numpad.kicad_pcb and its schematic 02/pcb-left-v2/pcb-2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Numpad design in my own project?
Its repository states no licence, so its author keeps all rights: ask rek before reusing the design.
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