2 layers18.5 × 11.1 mm
Switch
byrantech/laptop
anyon_e, a highly integrated, high end, open source laptop. Attempt the impossible.
6 parts4.3kMIT
2 layers45.2 × 59.4 mm
Simple Hackpad
james2009329/Simple-HackpadJust a simple Hackpad with 3 switches, an OLED screen, and rotary encoder.
- Size
- 45.2 × 59.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 6
- Nets
- 14
- Pads
- 40
- Tracks, vias
- 75, 0
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 8 Jun 2026
- Updated
- 15 Jun 2026
Overview
Simple Hackpad is an open-source printed circuit board by james2009329, from the james2009329/Simple-Hackpad repository on GitHub. It is a 2-layer board of 45.2 × 59.4 mm with 6 parts on 14 nets, routed with 75 tracks and 0 vias.
Its parts include 4 switches, 1 IC and 1 connector.
README
README.mdSimple-Hackpad
Just a simple Hackpad with 3 switches, an OLED screen, and rotary encoder. It was built as part of the Hack Club Hackpad YSWS
Features
- 3 mechanical key switches
- EC11 Rotary encoder
- 128x32 OLED display
- Seeed XIAO RP2040 microcontroller
- Made in Onshape, PCB designed in KiCad
Case & CAD
The case is a simple two-piece print. It is a base where the PCB sits, and a top cover. Everything slides together.
Designed in Onshape.
PCB
The PCB was designed in KiCad. Key switch footprints use MX_V2. The OLED and rotary encoder connect directly to the XIAO via I2C and GPIO.
Firmware
This hackpad runs KMK firmware on the XIAO RP2040.
- The 4 keys act as customizable macros
- The rotary encoder can be mapped to volume, scroll, zoom, or anything else
Bill of Materials
| Part | Qty |
|---|---|
| Cherry MX Switches | 3 |
| Keycaps (DSA or similar) | 3 |
| EC11 Rotary Encoder + knob | 1 |
| 0.91" 128x32 OLED Display | 1 |
| Seeed XIAO RP2040 | 1 |
| 3D Printed Case | 1 set |
Credits
- Inspired by Orpheuspad and the Hack Club Hackpad YSWS
- Case designed in Onshape
- PCB designed in KiCad
- Firmware: KMK
Parts
6| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3 |
| 1 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | MOUDLE-SEEEDUINO-XIAO | footprints:XIAO-Generic-Hybrid-14P-2.54-21X17.8MM | U1 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW4 |
Questions
How big is the Simple Hackpad PCB?
It measures 45.2 × 59.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Simple Hackpad use?
6 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 Simple Hackpad KiCad files?
From the james2009329/Simple-Hackpad repository on GitHub, at the commit this page was made from: the board is PCB/SimpleHackPad.kicad_pcb and its schematic PCB/SimpleHackPad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Simple Hackpad design in my own project?
Its repository states no licence, so its author keeps all rights: ask james2009329 before reusing the design.
Similar boards
- 2 layers14.6 × 33 mm
- 2 layers9 × 9 mm
Dpoint
Jcparkyn/dpoint
Open-source digital stylus using camera tracking and inertial measurements
6 parts1.1kMIT - 2 layers51.5 × 16.6 mm
MicroswitchXY Endstop
VoronDesign/Voron-Hardware
Cool Hardware designed by the Voron Design group
6 parts1.1kGPL-3.0 - 2 layers21.9 × 76.7 mm
Amiga External
hoglet67/RGBtoHDMI
Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI
6 parts1kGPL-3.0 - 2 layers88.9 × 50.8 mm
Businesscard
hackclub/OnBoard
💡 Join 1,000 teenagers and make your first PCB with a $100 grant!
6 parts915 - 2 layers20.3 × 15.2 mm
L0 RGB led
Luos-io/luos_engine
Open-source and real-time orchestrator for cyber-physical-systems, to easily design, test and deploy embedded applications and digital twins.
6 parts546MIT - 2 layers9 × 3.6 mm
