4 layers234 × 84 mm
Main panel
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
234 parts3kApache-2.0
2 layers99.8 × 87 mm
Hackpad
avycado13/hackpadmy 3x5 hackpad
- Size
- 99.8 × 87 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 42
- Nets
- 54
- Pads
- 190
- Tracks, vias
- 677, 41
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 5 Jul 2026
- Updated
- 22 Sep 2026
Overview
Hackpad is an open-source printed circuit board by avycado13, from the avycado13/hackpad repository on GitHub, published under the MIT licence. It is a 2-layer board of 99.8 × 87 mm with 42 parts on 54 nets, routed with 677 tracks and 41 vias.
It is built around the SK6812MINI-E. Its parts include 21 diodes, 18 switches, 2 ICs and 1 connector.
Main components
1README
README.mdhackpad
my hackpad that i can use for various controls
I've put the rest of the screenshots in a spoiler to preserve space
  
BOM
| Name | Qty |
|---|---|
| Cherry MX | 15 |
| Diode | 18 |
| Xiao rp2040 | 1 |
| SK6812MINI | 3 |
| OLED Display | 1 |
| Rotary Encoder | 3 |
| GPIO Expander | 1 |
Parts
42| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | D | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D10, D11, D12, D13, D14, D15, D16, D17, D18 +2 |
| 15 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW6, SW7, SW8, SW9, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17 |
| 3 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW4, SW5, SW18 |
| 3 | SK6812MINI-E | hackpad:SK6812MINI-E_fixed | D19, D20, D21 |
| 1 | MCP23017_SO | Package_SO:SOIC-28W_7.5x17.9mm_P1.27mm | U2 |
| 1 | MOUDLE-SEEEDUINO-XIAO | hackpad:XIAO-Generic-Hybrid-14P-2.54-21X17.8MM | U1 |
| 1 | OLED DISPLAY | Display:SSD1306-0.91-OLED-4pin-128x32 | J1 |
Questions
How big is the Hackpad PCB?
It measures 99.8 × 87 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hackpad use?
42 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 avycado13/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 publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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