4 layers234 × 84 mm
Main panel
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
234 parts3kApache-2.0
2 layers61.9 × 59.8 mm
Kicad5
hardwarepro/oled-hackpadThis is a custom macropad that has 4 buttons and is controlled by a XIAO RP2040 as my main MCU. It also has an EC11 encoder for customizable actions like volume control.
- Size
- 61.9 × 59.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 11
- Nets
- 18
- Pads
- 75
- Tracks, vias
- 137, 13
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 10 Jun 2025
- Updated
- 17 Jun 2025
Overview
Kicad5 is an open-source printed circuit board by hardwarepro, from the hardwarepro/oled-hackpad repository on GitHub. It is a 2-layer board of 61.9 × 59.8 mm with 11 parts on 18 nets, routed with 137 tracks and 13 vias.
It is built around the SK6812MINI-E. Its parts include 5 switches, 4 diodes and 2 ICs. It belongs with the RP2040 boards of this library.
Main components
1README
README.mdA's Hackpad
Description
This is a custom macropad that has 4 buttons and is controlled by a XIAO RP2040 as my main MCU. It also has an EC11 encoder for customizable actions like volume control. The 4 keys can be set to do whatever actions you want, but mine are set up as key 1 to open Gmail, key 2 takes a screenshot on Windows, key 3 holds down shift, key 4 saves a file while my EC11 controls my device's volume.
Firmware
This custom macropad’s firmware was written in KMK, which is easy to be changed and very easy to flash to the XIAO RP2040
BOM
| Through-hole XIAO-RP2040 | x1 |
|---|---|
| SK6812MINI LED's | x2 |
| EC11 Rotary Encoder | x1 |
| M3x16mm screws | -- |
| Blank DSA keycaps | x4 |
| MX switches | x4 |
Photos
This is the case I built for my macropad!
Parts
11| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | SK6812MINI | LED_SMD:LED_SK6812MINI_PLCC4_3.5x3.5mm_P1.75mm | D1, D2, D3, D4 |
| 4 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4 |
| 1 | RotaryEncoder_Switch | ec11:RotaryEncoder_Alps_EC11E_Vertical_H20mm | SW5 |
| 1 | SSD1306 | Oled:SSD1306-0.91-OLED-4pin-128x32 | U2 |
| 1 | XIAO-RP2040-DIP | hackpad:XIAO-RP2040-DIP | U1 |
Questions
How big is the Kicad5 PCB?
It measures 61.9 × 59.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Kicad5 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 Kicad5 KiCad files?
From the hardwarepro/oled-hackpad repository on GitHub, at the commit this page was made from: the board is pcb/kicad5.kicad_pcb and its schematic pcb/kicad5.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Kicad5 design in my own project?
Its repository states no licence, so its author keeps all rights: ask hardwarepro before reusing the design.
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