4 layers234 × 84 mm
Main panel
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
234 parts3kApache-2.0
2 layers94.9 × 80.1 mm
Hackpad
hiralsinghal/hackpadThis is a nine-key macropad with an OLED and two LEDs.
- Size
- 94.9 × 80.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 22
- Nets
- 25
- Pads
- 103
- Tracks, vias
- 176, 24
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 25 Feb 2026
- Updated
- 26 Feb 2026
Overview
Hackpad is an open-source printed circuit board by hiralsinghal, from the hiralsinghal/hackpad repository on GitHub. It is a 2-layer board of 94.9 × 80.1 mm with 22 parts on 25 nets, routed with 176 tracks and 24 vias.
It is built around the SK6812MINI-E. Its parts include 11 diodes, 9 switches and 2 ICs. It belongs with the RP2040 boards of this library.
Main components
1README
README.mdHiral's Hackpad
This is a nine-key macropad with an OLED and two LEDs.
Schematic
PCB
Case
BOM
I will make this using:
- 9x Cherry MX Switches
- 9x DSA Keycaps
- 9x 1N4148 DO-35 Diodes
- 2x SK6812MINI-E LEDs
- 1x 0.91" 128x32 OLED Display
- 1x XIAO RP2040
- 1x Case (2 printed parts)
| Designator | Footprint | Quantity | Value |
|---|---|---|---|
| D1, D2 | MX_SK6812MINI-E_REV | 2 | SK6812MINI-E |
| D10, D11, D3, D4, D5, D6, D7, D8, D9 | D_DO-35_SOD27_P7.62mm_Horizontal | 9 | 1N4148 |
| SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9 | SW_Cherry_MX_1.00u_PCB | 9 | SW_Push |
| U1 | OLED_0.91_128x32 | 1 | OLED_0.91_128x32 |
| U2 | XIAO-RP2040-DIP | 1 | XIAO-RP2040-DIP |
Intent
I made this to delve into the world of hardware for the first time. I've never made something like this before. I am quite excited to build it and use it.
Parts
22| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D3, D4, D5, D6, D7, D8, D9, D10, D11 |
| 9 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9 |
| 2 | SK6812MINI-E | hackpad:MX_SK6812MINI-E_REV | D1, D2 |
| 1 | OLED_0.91_128x32 | hackpad:OLED_0.91_128x32 | U1 |
| 1 | XIAO-RP2040-DIP | hackpad:XIAO-RP2040-DIP | U2 |
Questions
How big is the Hackpad PCB?
It measures 94.9 × 80.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hackpad use?
22 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 Hackpad KiCad files?
From the hiralsinghal/hackpad repository on GitHub, at the commit this page was made from: the board is PCB/hackpad.kicad_pcb and its schematic PCB/hackpad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hackpad design in my own project?
Its repository states no licence, so its author keeps all rights: ask hiralsinghal before reusing the design.
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