2 layers28.3 × 39.8 mm
LevelShifter
gusmanb/logicanalyzer
24 channel, 100Msps logic analyzer hardware and software
21 parts5.1kGPL-3.0
2 layers68 × 86 mm
Hackpad
Laval32/Custom-MacropadThe macropad will contain 9 switch keys, a rotary encoder, and an OLED screen.
- Size
- 68 × 86 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 21
- Nets
- 23
- Pads
- 88
- Tracks, vias
- 115, 6
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 23 Mar 2026
- Updated
- 4 Oct 2026
Overview
Hackpad is an open-source printed circuit board by Laval32, from the Laval32/Custom-Macropad repository on GitHub. It is a 2-layer board of 68 × 86 mm with 21 parts on 23 nets, routed with 115 tracks and 6 vias.
Its parts include 10 switches, 9 diodes, 1 IC and 1 connector. It belongs with the keyboards and input boards of this library.
README
README.mdCustom Macropad
A custom 3×3 macropad built from scratch with a XIAO RP2040, custom PCB, and 3D-printed case.
Features
- 9 programmable keys
- EC11 rotary encoder with push button
- 0.91" OLED display
- Custom PCB designed in KiCad
- 3D-printed two-piece case
- QMK firmware
- DSA keycaps
Design
Schematic
PCB
Case
BOM
| Quantity | Part |
|---|---|
| 1 | XIAO RP2040 |
| 9 | 1N4148 Diodes |
| 9 | Cherry MX Switches |
| 1 | EC11E Rotary Encoder (with switch) |
| 1 | 0.91" OLED Display |
| 9 | DSA Keycaps |
| 4 | M3×16mm Screws |
| 4 | M3×5mm×4mm Heatset Inserts |
| 1 | 3D-Printed Case (Top + Bottom) |
Firmware
The macropad uses QMK for key mapping and rotary encoder functionality.
Parts
21| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D8, D9 |
| 9 | SW_Push_45deg | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9 |
| 1 | Conn_01x04 | KiCad-SSD1306-0.91-OLED-4pin-128x32.pretty-master:SSD1306-0.91-OLED-4pin-128x32 | J1 |
| 1 | MOUDLE-SEEEDUINO-XIAO | footprints:XIAO-Generic-Hybrid-14P-2.54-21X17.8MM | U1 |
| 1 | RotaryEncoder_Switch_MP | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW10 |
Questions
How big is the Hackpad PCB?
It measures 68 × 86 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hackpad use?
21 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 Laval32/Custom-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 states no licence, so its author keeps all rights: ask Laval32 before reusing the design.
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