4 layers234 × 84 mm
Main panel
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
234 parts3kApache-2.0
2 layers57 × 43.5 mm
HackpadPractice
itsmixu/hackpad1My own DIY Macropad // Hack Club Hackpad
- Size
- 57 × 43.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 11
- Nets
- 14
- Pads
- 48
- Tracks, vias
- 93, 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 10 Feb 2026
- Updated
- 16 Mar 2026
Overview
HackpadPractice is an open-source printed circuit board by itsmixu, from the itsmixu/hackpad repository on GitHub. It is a 2-layer board of 57 × 43.5 mm with 11 parts on 14 nets, routed with 93 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.mdMixu's Macropad // Hack Club Hackpad
My own little macropad for my desk :D
It has 2 layers to work with: one for media controls and the other has copy, paste and undo, the knob click changes layers. It runs KMK so it is very easy to change afterwards if/when I want to add more functionality. There also is one RGB LED, and I plan to use it as a status LED. The OLED screen will have some animation and maybe some stats about my PC.
Overview
- 3 macro buttons with 2 layers
- Rotary encoder knob
- 0.96" OLED display
- 1 status RGB LED
- XIAO RP2040 running KMK firmware
Current status:
Hackpad kit arrived! 🥳 I've been testing (and partly losing my mind) with the firmware, mainly the OLED caused me issues. But I finally got it working (all thanks to Lyric's KMK OLED Logic 🙏🏻)
Testing the OLED and encoder
CAD Pictures
The PCB is sandwiched in between the case parts, with nuts on the bottom.
PCB
BOM
1x Custom PCB
1x Seeed XIAO RP2040
1x EC11 Rotary Encoder
1x 0.91 inch OLED display
3x MX-switches
4x M3 bolts and nuts
1x 3D-printed case
Parts
11| 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 | OLEDSSD1306 | footprints:SSD1306-0.91-OLED-4pin-128x32 | OLED1 |
| 1 | RotaryEncoder_Switch | footprints:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW4 |
| 1 | SK6812MINI-E | footprints:SK6812MINI-E_fixed | D1 |
The 7 most common of 11 parts.
Questions
How big is the HackpadPractice PCB?
It measures 57 × 43.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the HackpadPractice use?
11 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 HackpadPractice KiCad files?
From the itsmixu/hackpad repository on GitHub, at the commit this page was made from: the board is PCB/HackpadPractice.kicad_pcb and its schematic PCB/HackpadPractice.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the HackpadPractice design in my own project?
Its repository states no licence, so its author keeps all rights: ask itsmixu before reusing the design.
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