4 layers234 × 84 mm
Main panel
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
234 parts3kApache-2.0
2 layers67 × 83 mm
Hackpad
betacomputers/Macropad- Size
- 67 × 83 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 28
- Pads
- 106
- Tracks, vias
- 162, 17
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 28 Aug 2026
- Updated
- 1 Sep 2026
Overview
Hackpad is an open-source printed circuit board by betacomputers, from the betacomputers/Macropad repository on GitHub, published under the MIT licence. It is a 2-layer board of 67 × 83 mm with 26 parts on 28 nets, routed with 162 tracks and 17 vias.
It is built around the SK6812MINI-E. Its parts include 14 diodes, 10 switches, 1 IC and 1 connector.
Main components
1README
README.mdMacropad
My first time working on a hardware electronics project. Still learning PCB design. The current design for this macropad has 9 keys, a rotary encoder, an OLED display and is backlit with 4 LEDs, running on QMK firmware.
Features
- 2 Part case: top printed in white PLA, bottom printed in clear HT filament
- 9 Keys
- EC11 Rotary encoder
- 2 WS2812B RGB LEDs
- 128x32 OLED Display
Cad Model
Made in Fusion360. PCB is mounted to the bottom of the case with 4 M3 bolts and 5x4mm heat inserts. Top and bottom of the case are connected with snap fit joints.
PCB
Made in KiCad. My first attempt at making a PCB, no idea how it'll turn out. All DRC errors appear to be related to KiCads default clearance settings for the LEDs being too large.
Schematic:
Footprint:
3D View (top, bottom):
BOM
- 10x 1N4148 Diodes
- 9x MX-Style switches
- 9x DSA keycaps
- 4x SK6812 MINI-E LEDs
- 4x M3 screws
- 4x M3x5mx4mm heatset inserts
- 1x EC11 Rotary encoder
- 1x 0.91 inch OLED display
- 1x Seeed XIAO RP2040
Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 1N914 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D8, D9, D14 |
| 9 | SW_Push_45deg | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9 |
| 4 | SK6812MINI-E | LED_SMD:LED_SK6812MINI-E_3.2x2.8mm_P1.5mm_ReverseMount | D10, D11, D12, D13 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | MOUDLE-SEEEDUINO-XIAO | footprints.pretty:XIAO-Generic-Hybrid-14P-2.54-21X17.8MM | U1 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW10 |
Questions
How big is the Hackpad PCB?
It measures 67 × 83 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hackpad use?
26 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 Hackpad KiCad files?
From the betacomputers/Macropad 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 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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