

Hackpad math
A 20-key macropad to type special math characters that you normally cannot type on a standard keyboard.
- Size
- 95.5 × 93.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 41
- Nets
- 34
- Pads
- 114
- Tracks, vias
- 178, 11
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 6 Oct 2024
- Updated
- 6 Oct 2024
Overview
Hackpad math is an open-source printed circuit board by EwoudVV, from the EwoudVV/hackpad_math repository on GitHub, published under the CC0-1.0 licence. It is a 2-layer board of 95.5 × 93.5 mm with 41 parts on 34 nets, routed with 178 tracks and 11 vias.
Its parts include 20 diodes, 20 switches and 1 IC. It belongs with the keyboards and input boards of this library.
README
README.mdhackpad_math
A 20-key macropad to type special math characters that you normally cannot type on a standard keyboard.
Parts
41| Qty | Value | Footprint | References |
|---|---|---|---|
| 20 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20 +4 |
| 20 | SW_Push | gateron 1u:Gateron-KS33-Solderable-1U | SW1, SW2, SW3, SW4, SW5, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20 +4 |
| 1 | MOUDLE-SEEEDUINO-XIAO | gateron 1u:XIAO-Generic-Thruhole-14P-2.54-21X17.8MM | U1 |
Questions
How big is the Hackpad math PCB?
It measures 95.5 × 93.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hackpad math use?
41 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 math KiCad files?
From the EwoudVV/hackpad_math repository on GitHub, at the commit this page was made from: the board is Hackpad_Math/Hackpad_Math.kicad_pcb and its schematic Hackpad_Math/Hackpad_Math.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hackpad math design in my own project?
Its repository publishes it under the CC0-1.0 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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