4 layers234 × 84 mm
Main panel
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
234 parts3kApache-2.0
2 layers38.7 × 97.8 mm
Hackpadbludprint
HEofOttoman/hackpadbludprintmacromacropad files for hackpad
- Size
- 38.7 × 97.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 29
- Nets
- 18
- Pads
- 61
- Tracks, vias
- 127, 0
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 30 Mar 2026
- Updated
- 22 Jul 2026
Overview
Hackpadbludprint is an open-source printed circuit board by HEofOttoman, from the HEofOttoman/hackpadbludprintmacro repository on GitHub, published under the MIT licence. It is a 2-layer board of 38.7 × 97.8 mm with 29 parts on 18 nets, routed with 127 tracks and 0 vias.
It is built around the SK6812MINI-E. Its parts include 5 switches, 4 diodes and 1 IC. It belongs with the keyboards and input boards of this library.
Main components
1README
README.mdHenryWau's BludPad
- Keyboard Maintainer: Henry Wauzivuff
This is my very first macropad (and hardware project!) made for Hackpad. I designed it to be optimised for my little desk, being long and narrow, and also having a pretty cool pcb :>
Currently, the firmware binds the keys to Ctrl Z, numpad 1,3,7 & mswhl up/down, designed to help me with creative software, Blender specifically.
Specifications
BOM
- 1x Seeed Xiao RP4020
- 1x EC11 Rotary Encoder
- 4x Cherry MX switches
- 4x Blank Keycaps
- 4x SK6812 MINI-E LEDs
- 4x Screws
Others
- Custom PCB
- QMK Firmware
- Case.STL
Schematic
https://cdn.hackclub.com/019d466b-ad1f-7994-9d12-ee104b858810/image.png
PCB
Dimensions at max: 38.496 x 97.794 mm Top left corner to USB - 7.452 mm
Keyhole dimensions: x = 2.635 y = 0.233 ^This screwed me up big time, I had to redo the plate 5.020 + 9.5 = 14.52 2.773 + 9.5 = 12.273
Case
References
A list of the resources I used to hopefully help others and keep their own piece of sanity where I've lost it..
- Xiao RP2040 Pin Reference - Used the GPIO pins in the table provided for firmware code
- Legacy Blueprint Hackpad Guide - https://web.archive.org/web/20251224215247/https://blueprint.hackclub.com/hackpad/index.md <-(PAY ATTENTION TO THESE MEASUREMENTS!)
- Porting your keyboard to qmk
- Hackpad Github - Filled with examples of other macropads
- For the plate: Keyboard Layout Editor & Ai03's plate editor
Parts
29| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | LOGO | LOGO | G***, G***, G***, G***, G***, G***, G***, G***, G***, G***, G***, jack, kiki, let it grow gng, walkinglarp, walkinglarp |
| 4 | SK6812MINI-E | LED_SMD:LED_SK6812MINI-E_3.2x2.8mm_P1.5mm_ReverseMount | D1, D2, D3, D4 |
| 4 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4 |
| 2 | LOGO | projftprints:dragonbridge | G***, katfront |
| 1 | ER_OLEDM0.91_1x-I2C | Display:ER_OLEDM0.91_1x-I2C | OLED U2 |
| 1 | MOUDLE-SEEEDUINO-XIAO | HC Care Package footprints:XIAO-Generic-Hybrid-14P-2.54-21X17.8MM | U1 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW5 |
Questions
How big is the Hackpadbludprint PCB?
It measures 38.7 × 97.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hackpadbludprint use?
29 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 Hackpadbludprint KiCad files?
From the HEofOttoman/hackpadbludprintmacro repository on GitHub, at the commit this page was made from: the board is pcb/hackpadbludprint.kicad_pcb and its schematic pcb/hackpadbludprint.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hackpadbludprint 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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