4 layers234 × 84 mm
Main panel
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
234 parts3kApache-2.0
2 layers51 × 86 mm
Hackpad
gaby-burciaga/HackypadMy personal hackypad (micropad)! I plan on adding 4 keys and an OLED screen to display a simple text, and an encoder to change volume.
- Size
- 51 × 86 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 8
- Nets
- 16
- Pads
- 63
- Tracks, vias
- 83, 14
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 27 Dec 2025
- Updated
- 27 Dec 2025
Overview
Hackpad is an open-source printed circuit board by gaby-burciaga, from the gaby-burciaga/Hackypad repository on GitHub. It is a 2-layer board of 51 × 86 mm with 8 parts on 16 nets, routed with 83 tracks and 14 vias.
It is built around the SK6812MINI-E. Its parts include 5 switches, 1 IC and 1 diode. It belongs with the lEDs and displays boards and the RP2040 boards of this library.
Main components
1README
README.mdGabriel's CREATION
Finally my creation is ready :)
Hackpad
Bottom case
Plate
Schematic
PCB
Challenges
This was my first time designing a PCB, it was really fun and exciting to do, i felt like i was really designing something that i could really use. Using KMK was a little difficult to use, i struggled trying to set the correct pins for my keys. Trying to understand how to layout the OLED connector (GND VCC SDA SCL) was a real nightmare, but at the end, it was a really rewarding experience.
BOM
- 4x Cherry MX Switches
- 1x SK6812 MINI Leds
- 1x XIAO RP2040
- 4x Blank DSA Keycaps
- 4x M3x16 Bolt
- 4x M3 Heatset
- 1x 0.91 OLED Display
- 1x EC11 Rotary encoder
others:
- KMK Firmware
- Bottom case.STEP
- Plate.STEP
I used Solidworks to design the case, KiCAD for the PCB, and vscode to write the firmware.
Parts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4 |
| 1 | OLED_0.91_I2C | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | OLED1 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW5 |
| 1 | SK6812MINI | LED_SMD:LED_SK6812MINI_PLCC4_3.5x3.5mm_P1.75mm | D1 |
| 1 | XIAO-RP2040-DIP | Seeed Studio XIAO Series Library:XIAO-RP2040-DIP | U1 |
Questions
How big is the Hackpad PCB?
It measures 51 × 86 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hackpad use?
8 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 gaby-burciaga/Hackypad 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/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 gaby-burciaga before reusing the design.
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