4 layers234 × 84 mm
Main panel
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
234 parts3kApache-2.0
2 layers99.5 × 99.5 mm
Numpad
apinguen/pingupadA hackpad with 16 buttons, an OLED screen, and an LED bar intended to be used as a Hackpad. Onshape: https://cad.onshape.com/documents/17214055c25b4c4edecabb37/w/d13b70b86df991b167aecbf5/e/80d1be217be8b2c73be55550
- Size
- 99.5 × 99.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 39
- Nets
- 35
- Pads
- 146
- Tracks, vias
- 298, 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 17 Jan 2026
- Updated
- 17 Jan 2026
Overview
Numpad is an open-source printed circuit board by apinguen, from the apinguen/pingupad repository on GitHub. It is a 2-layer board of 99.5 × 99.5 mm with 39 parts on 35 nets, routed with 298 tracks and 2 vias.
It is built around the SK6812MINI-E. Its parts include 20 diodes, 16 switches and 1 IC.
Main components
1README
README.mdA hackpad with 16 buttons, an OLED screen, and an LED bar intended to be used as a Hackpad. Onshape: https://cad.onshape.com/documents/17214055c25b4c4edecabb37/w/d13b70b86df991b167aecbf5/e/80d1be217be8b2c73be55550
Parts
39| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16 |
| 16 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12, SW13, SW14, SW15, SW16 |
| 4 | SK6812MINI-E | KiCAD Care Package:SK6812MINI-E_fixed | D17, D18, D19, D20 |
| 1 | LOGO | LOGO | G* |
| 1 | MOUDLE-SEEEDUINO-XIAO | KiCAD Care Package:XIAO-Generic-Hybrid-14P-2.54-21X17.8MM | U1 |
| 1 | ~ | SSD1306-0.91-OLED-4pin-128x32:SSD1306-0.91-OLED-4pin-128x32 | OLED1 |
Questions
How big is the Numpad PCB?
It measures 99.5 × 99.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Numpad use?
39 parts, built around the SK6812MINI-E. 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 apinguen/pingupad repository on GitHub, at the commit this page was made from: the board is kicad/numpad/numpad.kicad_pcb and its schematic kicad/numpad/numpad.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 apinguen before reusing the design.
Similar boards
- 4 layers180.8 × 300.3 mm
Dilemma
Bastardkb/Dilemma
The Dilemma is a vertical stagger low-profile keyboard with mods.
383 parts590 - 4 layers48 × 32 mm
FlatSat
Pwnsat/FlatSat
Flatsat v1.0 is a hardware based platform for aerospace cybersecurity research
106 parts575GPL-2.0 - 2 layers
Demo
adamws/kicad-kbplacer
KiCad plugin for automatic keyboard's key placement and routing
48 parts547GPL-3.0 - 2 layers97 × 78.5 mm
Dumbpad
imchipwood/dumbpad
Simple 4x4 numpad with rotary encoder. Powered by QMK via ATmega32u4 Pro Micro
62 parts517GPL-2.0 - 4 layers82.5 × 39.4 mm
V4head
makerforgetech/modular-biped
An open source framework for creating a bipedal modular companion robot.
26 parts493GPL-3.0 - 2 layers115.7 × 95.7 mm
- 4 layers70 × 54 mm
