4 layers234 × 84 mm
Main panel
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
234 parts3kApache-2.0
2 layers62.5 × 62.5 mm
Hackpad
samdev-7/squarepad6A small but versatile macropad!
- Size
- 62.5 × 62.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 38
- Nets
- 35
- Pads
- 151
- Tracks, vias
- 284, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 7 Jun 2025
- Updated
- 12 Aug 2025
Overview
Hackpad is an open-source printed circuit board by samdev-7, from the samdev-7/squarepad repository on GitHub. It is a 2-layer board of 62.5 × 62.5 mm with 38 parts on 35 nets, routed with 284 tracks and 0 vias.
It is built around the SK6812MINI-E. Its parts include 21 diodes, 9 switches and 1 IC. It belongs with the keyboards and input boards and the RP2040 boards of this library.
Main components
1README
pcb/README.mdPCB
This folder contains the PCB for the Squre Pad, designed in KiCad 8.0
To manufacture your own Square Pad PCB, the gerbers for JLCPCB are in /production.
Parts
38| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | SK6812MINI | Library:LED_SK6812MINI_PLCC4_3.5x3.5mm_P1.75mm | D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21 |
| 9 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D8, D9 |
| 8 | SW_Push | Library:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW4, SW5, SW6, SW7, SW8, SW9 |
| 1 | OLED | KiCad-SSD1306-0.91-OLED-4pin-128x32:SSD1306-0.91-OLED-4pin-128x32 | OL1 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW3 |
| 1 | XIAO-RP2040-DIP | Seeed Studio XIAO Series Library:XIAO-RP2040-DIP | U1 |
The 32 most common of 38 parts.
Questions
How big is the Hackpad PCB?
It measures 62.5 × 62.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hackpad use?
38 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 samdev-7/squarepad repository on GitHub, at the commit this page was made from: the board is pcb/hackpad.kicad_pcb and its schematic pcb/OPL_Kicad_Library-master/Grove Vision AI V2 Library/Grove - Vision AI Module V2.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 samdev-7 before reusing the design.
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