2 layers47.6 × 27.3 mm
2 layers97.6 × 74.7 mm
Hackpad
lmiez/CADPad12 switch macropad with a rotary encoder and .91" oled screen.
- Size
- 97.6 × 74.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 27
- Nets
- 32
- Pads
- 115
- Tracks, vias
- 150, 18
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 31 Jan 2026
- Updated
- 24 Mar 2026
Overview
Hackpad is an open-source printed circuit board by lmiez, from the lmiez/CADPad repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 97.6 × 74.7 mm with 27 parts on 32 nets, routed with 150 tracks and 18 vias.
Its parts include 13 switches, 12 diodes, 1 IC and 1 connector. It belongs with the keyboards and input boards and the RP2040 boards of this library.
README
README.mdCADPad
12 switch macropad with a rotary encoder and .91" oled screen.
Bill of Materials
- 12x MX Style Switches
- 4x M3x5mx4mm heatset inserts
- 3D Printed case
- 4x M3x16mm screws
- 12x Blank DSA keycaps
- 1x seeed studios xiao rp2040 sma version
- 1x 0.91" oled screen
- 1x EC11 rotary encoder
- 12x Through-hole 1N4148 Diodes
- 1x knob
Usecase
Id like to use the hackpad for fusion shortcuts to make 3d design easier.
PHOTOS
Parts
27| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12 |
| 12 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW13 |
| 1 | Conn_01x04_Pin | ff:SSD1306-0.91-OLED-4pin-128x32 | J1 |
| 1 | RotaryEncoder | rew:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW17 |
| 1 | XIAO-RP2040-SMD | iyg:XIAO-RP2040-SMD | U1 |
Questions
How big is the Hackpad PCB?
It measures 97.6 × 74.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hackpad use?
27 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 lmiez/CADPad repository on GitHub, at the commit this page was made from: the board is KiCAD/Hackpad.kicad_pcb and its schematic KiCAD/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 GPL-3.0 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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