4 layers234 × 84 mm
Main panel
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
234 parts3kApache-2.0
2 layers87.5 × 62.5 mm
Hackpad2.0
Gituseraum/HackpackHackpad I designed to hopefully run doom on
- Size
- 87.5 × 62.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 8
- Nets
- 22
- Pads
- 52
- Tracks, vias
- 69, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 5 Dec 2025
- Updated
- 11 Dec 2025
Overview
Hackpad2.0 is an open-source printed circuit board by Gituseraum, from the Gituseraum/Hackpack repository on GitHub. It is a 2-layer board of 87.5 × 62.5 mm with 8 parts on 22 nets, routed with 69 tracks and 0 vias.
It is built around the SK6812MINI-E. Its parts include 4 switches, 2 diodes and 1 IC. It belongs with the RP2040 boards of this library.
Main components
1README
README.mdHackpack
Hackpad I designed to hopefully run doom on PCB Here's a picture of my schematic! I wired a xiao rp204 module to a TFT display, 2 LEDs, a and 4 switches,
Schematic PCB
[ x ] I ran DRC in KiCad and have made sure there are 0 errors!
Scematic overview
CAD Model: Everything fits together using 4 M3 Heatset inserts and 4 M3x16mm screws. Here's how it looks:
It was made in fusion360 pretty nifty stuff.
Part BOM:
1x xiao at $4.30/per.
1x PCB from JLCPCB
$2 for 5x + $1.50 shipping
4x Blank DSA keycaps (LCSC) $0.44 (min order 5)
4x MX-Style switches
1x0.91 inch OLED displays
4x M3x16mm screws
4x M3x5mx4mm heatset inserts
3d Printed parts- useing my printer
Parts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4 |
| 2 | SK6812MINI | LED_SMD:LED_SK6812MINI_PLCC4_3.5x3.5mm_P1.75mm | D1, D2 |
| 1 | OLED | oled:SSD1306-0.91-OLED-4pin-128x32 | OL1 |
| 1 | XIAO-RP2040-SMD | hackpack2.0:XIAO-RP2040-SMD | U1 |
Questions
How big is the Hackpad2.0 PCB?
It measures 87.5 × 62.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hackpad2.0 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 Hackpad2.0 KiCad files?
From the Gituseraum/Hackpack repository on GitHub, at the commit this page was made from: the board is Hackpad/hackpad2.0/hackpad2.0.kicad_pcb and its schematic Hackpad/Hackpad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hackpad2.0 design in my own project?
Its repository states no licence, so its author keeps all rights: ask Gituseraum before reusing the design.
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