2 layers142.5 × 106.4 mm
2 layers81 × 61.9 mm
⌨️ A 12 key mechanical keypad
- Size
- 81 × 61.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 34
- Nets
- 21
- Pads
- 117
- Tracks, vias
- 147, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 15 Aug 2019
- Updated
- 15 Aug 2019
Overview
4by3 is an open-source printed circuit board by eliassjogreen, from the eliassjogreen/4by3 repository on GitHub, published under the MIT licence. It is a 2-layer board of 81 × 61.9 mm with 34 parts on 21 nets, routed with 147 tracks and 0 vias.
Its parts include 13 switches and 12 diodes. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.
README
README.md
A 12 key mechanical keypad that can be used as a arrow-pad, function-pad, numpad or whatever else you can imagine that fits onto 12 keys.
Parts
34| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | D | 4by3:DIODE | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12 |
| 12 | KEYSW | 4by3:CHERRY_MX_PCB | K1, K2, K3, K4, K5, K6, K7, K8, K9, K10, K11, K12 |
| 4 | 4by3:MOUNTING_HOLE | H1, H2, H4, H5 | |
| 1 | Mounting_Holes:MountingHole_2.2mm_M2 | H3 | |
| 1 | >VALUE | 4by3:OSHW_LOGO | >NAME |
| 1 | LOGO | 4by3:4BY3_LOGO | G*** |
| 1 | LOGO | 4by3:QMK_BADGE | G |
| 1 | PRO_MICRO | 4by3:PRO_MICRO | M1 |
| 1 | SW_PUSH | 4by3:RESET_BUTTON | SW1 |
Questions
How big is the 4by3 PCB?
It measures 81 × 61.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 4by3 use?
34 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 4by3 KiCad files?
From the eliassjogreen/4by3 repository on GitHub, at the commit this page was made from: the board is pcb/4by3.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the 4by3 design in my own project?
Its repository publishes it under the MIT 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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