2 layers159.5 × 30 mm
Type f
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
25 parts3kApache-2.0
2 layers109 × 96 mm
Geometry numpad
katonamozes/geometry-numpadThis macropad has a 12 buttons and will use the xiao rp2040 as a processor. I will use it to play geometry dash so that I don't destroy my laptops keyboard or my mouse. It also has a numpad because my laptop doesn't have one.
- Size
- 109 × 96 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 25
- Nets
- 26
- Pads
- 112
- Tracks, vias
- 152, 12
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 14 Jun 2026
- Updated
- 26 Jun 2026
Overview
Geometry numpad is an open-source printed circuit board by katonamozes, from the katonamozes/geometry-numpad repository on GitHub. It is a 2-layer board of 109 × 96 mm with 25 parts on 26 nets, routed with 152 tracks and 12 vias.
Its parts include 12 diodes, 12 switches and 1 IC. It belongs with the keyboards and input boards and the RP2040 boards of this library.
README
README.mdGeometry numpad
This macropad has a 12 buttons and will use the xiao rp2040 as a processor. I will use it to play geometry dash so that I don't destroy my laptops keyboard or my mouse. It also has a numpad because my laptop doesn't have one.
Features:
- Dual layer PCB
- 12 keys
- 9 Numbers
- 3 Mouse buttons
Cad model
I designed the case in fusion 360 with 3d printing in mind. I designed it in 2 pieces: 1 for the pcb to sit on and 1 to keep the pcb in place.
PCB
I made my PCB in kicad. I learned a lot making it as I had to use diodes which I haven't used before, I now know that they are directional and that I will need to watch out for how I put them in.
Schematic
PCB
Firmware overview
It uses QMK I made it so that it has the 9 number keys and the other 3 are mouse keys but instead of having right middle and left click it has 2 left clicks and 1 right click. This is great for playing geometry dash as you can switch between 2 keys when you are playing instead of having to use just 1 key which sometimes isn't fast enough.
Bom:
Parts
25| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 1N4148 | Capacitor_THT:C_Disc_D16.0mm_W5.0mm_P10.00mm | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12 |
| 12 | SW_Push | MX_Solderable:MX-Solderable-1U | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12 |
| 1 | XIAO-RP2040-DIP | New_XIAO_Series_Footprints:XIAO-RP2040-DIP | U1 |
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Questions
How big is the Geometry numpad PCB?
It measures 109 × 96 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Geometry numpad use?
25 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 Geometry numpad KiCad files?
From the katonamozes/geometry-numpad repository on GitHub, at the commit this page was made from: the board is pcb/PCB.kicad_pcb and its schematic pcb/PCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Geometry numpad design in my own project?
Its repository states no licence, so its author keeps all rights: ask katonamozes before reusing the design.