2 layers43.9 × 27.7 mm
2 layers71.4 × 97.6 mm
HackPad
MeBadDev/HackPad- Size
- 71.4 × 97.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 19
- Nets
- 23
- Pads
- 91
- Tracks, vias
- 95, 9
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 13 Dec 2025
- Updated
- 25 Jul 2026
Overview
HackPad is an open-source printed circuit board by MeBadDev, from the MeBadDev/HackPad repository on GitHub. It is a 2-layer board of 71.4 × 97.6 mm with 19 parts on 23 nets, routed with 95 tracks and 9 vias.
Its parts include 9 diodes, 9 switches and 1 IC. It belongs with the RP2040 boards of this library.
README
README.mdA 3x3 macropad!
This is my submission to HackClub HackPad v4! It's also my first ever hardware project.
Inspiration
I originally wanted to build a 80% keyboard, but don't know anything about electronics. I found some tutorials and dumbed it down into something I can manage, fits in HackPad's requirement, and still helps me learn to build a keyboard (I've learnt how matrixes work, for example)!
Things I've learnt
I've learnt quite a bit about electronics and (probably, when i got my hands on the hardware) soldering. I've also learnt about the general process of designing a PCB, and how to use KiCad. It's been a fun experience so far!
By the way
The HackPad guide is really good, and I highly recommend it to anyone wanting to get into hardware! I've also fixed some typos and mistakes in the guide, so check that out if you're interested!
Screenshots!
Bill of Materials
- XIAO RP2040 DIP
- 9x Cherry MX Style Switches
- 9x 1N4148 Diodes
- Wires
- Soldering Kit
- 3D Printer (for the case)
That's all for now!
I'll update this README when I make more progress on the project, and perhaps write a blog post about it too! See you!
Parts
19| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | D_Small | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D8, D9 |
| 9 | SW_Push_45deg | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9 |
| 1 | XIAO-RP2040-DIP | OPL:XIAO-RP2040-DIP | U1 |
Questions
How big is the HackPad PCB?
It measures 71.4 × 97.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the HackPad use?
19 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 MeBadDev/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 states no licence, so its author keeps all rights: ask MeBadDev before reusing the design.
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