2 layers57 × 55.2 mm
LogicAnalyzer
gusmanb/logicanalyzer
24 channel, 100Msps logic analyzer hardware and software
10 parts5.1kGPL-3.0
2 layers100 × 51.7 mm
HackPad
yahyaGoblin/HackPadA compact 6-key macropad with two potentiometers built on the Seeed XIAO. Open source hardware, KiCad design files and gerbers included.
- Size
- 100 × 51.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 10
- Nets
- 14
- Pads
- 45
- Tracks, vias
- 45, 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 21 May 2026
- Updated
- 10 Jun 2026
Overview
HackPad is an open-source printed circuit board by yahyaGoblin, from the yahyaGoblin/HackPad repository on GitHub. It is a 2-layer board of 100 × 51.7 mm with 10 parts on 14 nets, routed with 45 tracks and 2 vias.
Its parts include 5 switches and 1 IC. It belongs with the keyboards and input boards of this library.
README
README.mdHACKPAD
A compact 4-key macropad powered by the Seeed XIAO, with a rotary encoder for volume, scroll, or whatever feels useful that week. Fully custom PCB, hand-routed, with MX-compatible switch footprints at 19.05mm spacing. This was the project that started everything — a Hack Club Hackpad build that turned into a crash course in KiCad, footprint libraries, PCB layout, and knowing when to scale back (and when not to). It taught the fundamentals that every later project relied on.
Schematic Preview
PCB Preview
3D Model
Features
- 4 mechanical key switches
- 1 rotary encoder (clicky, EC11)
- Seeed XIAO MCU (small footprint, USB-C)
- Compact single PCB design
Bill of Materials
| Component | Part | Quantity | Notes | Link | Distributor |
|---|---|---|---|---|---|
| Microcontroller | Seeed XIAO RP2040 | 1 | Link | KEEBD | |
| Switches | MX-compatible mechanical switches (Gateron Blue) | 4 | 5-pin or 3-pin | Link | KEEBD |
| Keycaps | MX keycaps | 4 | — | local | |
| Rotary Encoder | EC11 rotary encoder | 1 | With push switch | Link | KEEBD |
| Encoder Knob | 3D Printed EC11-compatible knob | 1 | Link | KEEBD | |
| PCB | Custom (this repo) | 1 | Gerbers in /gerbers | — | PCBWay |
| Baseplate | Laser cut / 3D printed | 1 | Holds the PCB | — | local |
| USB Cable | USB-C | 1 | — | local |
Fabrication
Gerber files are in the /gerbers folder, ready to send to JLCPCB, PCBWay, or your preferred fab.
Firmware
Designed for use with KMK. See code.py for the full config — 4 keys mapped to media controls, encoder for volume with mute on press.
License
Open source hardware — feel free to modify and build your own.
Parts
10| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 4 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4 |
| 1 | MOUDLE-SEEEDUINO-XIAO | Xiao:XIAO-Generic-Hybrid-14P-2.54-21X17.8MM | U1 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW7 |
Questions
How big is the HackPad PCB?
It measures 100 × 51.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the HackPad use?
10 parts. 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 yahyaGoblin/HackPad repository on GitHub, at the commit this page was made from: the board is HackPad/HackPad.kicad_pcb and its schematic HackPad/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 yahyaGoblin before reusing the design.
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