4 layers234 × 84 mm
Main panel
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
234 parts3kApache-2.0
2 layers45 × 61.5 mm
Hackpad Kicad
gautambatheja55-pixel/HackpadA custom macropad built for the Blueprint Hack Club
- Size
- 45 × 61.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 6
- Nets
- 15
- Pads
- 40
- Tracks, vias
- 96, 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 19 Mar 2026
- Updated
- 23 Mar 2026
Overview
Hackpad Kicad is an open-source printed circuit board by gautambatheja55-pixel, from the gautambatheja55-pixel/Hackpad repository on GitHub, published under the MIT licence. It is a 2-layer board of 45 × 61.5 mm with 6 parts on 15 nets, routed with 96 tracks and 1 via.
It is built around the SK6812MINI-E. Its parts include 4 switches, 1 IC and 1 diode. It belongs with the keyboards and input boards of this library.
Main components
1README
README.mdHackpad
A custom macropad built for the Blueprint Hack Club.
It includes three mechanical keys (Ctrl, C, and V independently — meaning they work as dedicated keys that combine naturally, just like a real keyboard)
Hold Ctrl and tap C to copy, hold Ctrl and tap V to paste, or use Ctrl alone for any other combination.
A rotary encoder doubles as a scroll wheel for smooth document and page navigation, with its built-in push button functioning as a left click — making it a complete navigation control in one compact knob.
An RGB LED provides intuitive visual feedback: red on power-on, orange during encoder interaction, and green when a key is pressed
The custom enclosure is designed in Onshape with mirror L-shaped key layout, keeping the form factor minimal while maintaining a clean, purposeful aesthetic. The board runs on a Seeed XIAO SAMD21 microcontroller powered via USB-C, with firmware written in CircuitPython for easy modification and extensibility.
Photo of Schematic-
Photo of PCB (with an Easter Egg!) -
Photo of Top case -
Photo of complete enclosure along with PCB -
Phot
BOM
Parts
6| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3 |
| 1 | MOUDLE-SEEEDUINO-XIAO | footprints:XIAO-Generic-Hybrid-14P-2.54-21X17.8MM | U1 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW4 |
| 1 | SK6812MINI-E | footprints:SK6812MINI-E_fixed | D1 |
Questions
How big is the Hackpad Kicad PCB?
It measures 45 × 61.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hackpad Kicad use?
6 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 KiCad files?
From the gautambatheja55-pixel/Hackpad repository on GitHub, at the commit this page was made from: the board is Hardware/Hackpad Kicad.kicad_pcb and its schematic Hardware/Hackpad Kicad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hackpad Kicad 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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