2 layers27.9 × 16.5 mm
2 layers77.1 × 87.6 mm
Hackpad
reemlifa/reem-hackpadreems first hackpad
- Size
- 77.1 × 87.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 18
- Nets
- 22
- Pads
- 91
- Tracks, vias
- 125, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 9 Jul 2025
- Updated
- 10 Jul 2025
Overview
Hackpad is an open-source printed circuit board by reemlifa, from the reemlifa/reem-hackpad repository on GitHub. It is a 2-layer board of 77.1 × 87.6 mm with 18 parts on 22 nets, routed with 125 tracks and 0 vias.
Its parts include 9 switches, 8 diodes and 1 IC. It belongs with the RP2040 boards of this library.
README
README.mdhackpad
reems first hackpad
BOM
- 8 diodes
- 8 cherry mx switches
- 1 rotary encoder
- 1 XIAO RP2040 DIP
What it does
- Key Presses: Pressing the switches sends Function Keys (F1-F11) and the letter 'A' to the computer. This is defined in the keymap.
- Encoder Rotation:
- Turning it clockwise sends a Volume Up command.
- Turning it counter-clockwise sends a Volume Down command.
- Encoder Click: Pressing the encoder's button sends a Mute command.
Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | D | Diode_THT:D_DO-201AE_P3.81mm_Vertical_KathodeUp | D3, D4, D5, D6, D8, D9, D10, D11 |
| 8 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW5, SW7, SW9, SW10, SW11 |
| 1 | RotaryEncoder | Rotary_Encoder:RotaryEncoder_Alps_EC11E_Vertical_H20mm_CircularMountingHoles | SW4 |
| 1 | XIAO-RP2040-DIP | Seeed Studio XIAO Series Library:XIAO-RP2040-DIP | U1 |
Questions
How big is the Hackpad PCB?
It measures 77.1 × 87.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hackpad use?
18 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 reemlifa/reem-hackpad repository on GitHub, at the commit this page was made from: the board is PCB/hackpad.kicad_pcb and its schematic PCB/OPL_Kicad_Library-master 2/Grove Vision AI V2 Library/Grove - Vision AI Module V2.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 reemlifa before reusing the design.
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