2 layers60 × 30 mm
Controller
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
11 parts3kApache-2.0
2 layers100 × 71.4 mm
Hackpad
haohaohaoyan/hackpad1hackpad for blueprint, design schematics here
- Size
- 100 × 71.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 11
- Nets
- 14
- Pads
- 74
- Tracks, vias
- 95, 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 30 Nov 2025
- Updated
- 29 Jan 2026
Overview
Hackpad is an open-source printed circuit board by haohaohaoyan, from the haohaohaoyan/hackpad repository on GitHub. It is a 2-layer board of 100 × 71.4 mm with 11 parts on 14 nets, routed with 95 tracks and 3 vias.
Its parts include 8 switches, 1 IC and 1 connector. It belongs with the RP2040 boards of this library.
README
README.mdmini mediapad
a small macropad for hack club's blueprint. it has a screen for a keys-per-second tracker (and maybe bad apple in the future), four keys for rhythm games, a rotary encoder for volume, and prev/pause/next track buttons.
Pictures
Case (assembled, no parts because KiCad can't find them)
Schematic
PCB
Bill of Materials:
- 1x Seeed Studio XIAO RP2040
- 1x 0.91in OLED display (128*32)
- 7x Cherry MX-style Keyswitches
- 7x Blank DSA Keycaps
- 1x EC11 Rotary Encoder
- 4x M3x16mm screws
- 4x M3x5mx4mm heatset inserts
- 3D printed case, top and bottom
Parts
11| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4, SW5, SW6, SW7 |
| 1 | Conn_01x04 | KiCad-SSD1306-0.91-OLED-4pin-128x32:SSD1306-0.91-OLED-4pin-128x32 | J1 |
| 1 | LOGO | LOGO | G*** |
| 1 | RotaryEncoder | Rotary_Encoder:RotaryEncoder_Alps_EC11E_Vertical_H20mm | SW8 |
| 1 | XIAO-RP2040-DIP | Seeed Studio XIAO Series Library:XIAO-RP2040-DIP | U1 |
Questions
How big is the Hackpad PCB?
It measures 100 × 71.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hackpad use?
11 parts. 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 haohaohaoyan/hackpad 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 states no licence, so its author keeps all rights: ask haohaohaoyan before reusing the design.
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