2 layers139.3 × 113.8 mm
Flake L
lever-tech/flake
An open-source, wireless, split ergonomic keyboard designed to be productive, healthy, and enjoyable. [formerly Anywhy Flake]
62 parts531CERN-OHL-W-2.0
2 layers60 × 90 mm
Keymatrix
funkeleinhorn/keymatrixA keymatrix PCB with a layout typical for phones.
- Size
- 60 × 90 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 62
- Nets
- 23
- Pads
- 98
- Tracks, vias
- 200, 16
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 18 Apr 2025
- Updated
- 21 Apr 2025
Overview
Keymatrix is an open-source printed circuit board by funkeleinhorn, from the funkeleinhorn/keymatrix repository on GitHub, published under the CERN-OHL-S-2.0 licence. It is a 2-layer board of 60 × 90 mm with 62 parts on 23 nets, routed with 200 tracks and 16 vias.
Its parts include 15 diodes, 15 switches and 2 connectors.
README
README.mdKeymatrix
Keymatrix PCB providing a numpad typical for phones with a call, menu and hang up button. The keymatrix features diodes to prevent ghosting effects.
This project is licensed as open hardware. See LICENSE.txt for details.
Images
Here you can see how the PCB looks:
Parts
62| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | D | Diode_SMD:D_MiniMELF | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15 |
| 15 | SW_Push | Button_Switch_SMD:SW_SPST_PTS645 | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12, SW13, SW14, SW15 |
| 2 | G*** | kibuzzard-67EF97D2 | kibuzzard-67EF97D2, kibuzzard-67EF97D2 |
| 2 | G*** | kibuzzard-67EF97CE | kibuzzard-67EF97CE, kibuzzard-67EF97CE |
| 2 | G*** | kibuzzard-67EF97B6 | kibuzzard-67EF97B6, kibuzzard-67EF97B6 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | Conn_01x05 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J2 |
| 1 | G*** | kibuzzard-67EF95DE | kibuzzard-67EF95DE |
| 1 | G*** | kibuzzard-67EF9854 | kibuzzard-67EF9854 |
| 1 | G*** | kibuzzard-67EF95BB | kibuzzard-67EF95BB |
| 1 | G*** | kibuzzard-67EF9547 | kibuzzard-67EF9547 |
| 1 | G*** | kibuzzard-67F1071B | kibuzzard-67F1071B |
| 1 | G*** | kibuzzard-67EF951D | kibuzzard-67EF951D |
| 1 | G*** | kibuzzard-67EF94E3 | kibuzzard-67EF94E3 |
| 1 | G*** | kibuzzard-67EF9511 | kibuzzard-67EF9511 |
| 1 | G*** | kibuzzard-67EF9502 | kibuzzard-67EF9502 |
| 1 | G*** | kibuzzard-67EF9529 | kibuzzard-67EF9529 |
| 1 | G*** | kibuzzard-67EF94F8 | kibuzzard-67EF94F8 |
| 1 | G*** | kibuzzard-67EF95EE | kibuzzard-67EF95EE |
| 1 | G*** | kibuzzard-67EF9534 | kibuzzard-67EF9534 |
| 1 | G*** | kibuzzard-67EF953E | kibuzzard-67EF953E |
| 1 | G*** | kibuzzard-67F1073F | kibuzzard-67F1073F |
| 1 | G*** | kibuzzard-67F106E2 | kibuzzard-67F106E2 |
| 1 | G*** | kibuzzard-67EF957E | kibuzzard-67EF957E |
| 1 | G*** | kibuzzard-67F10650 | kibuzzard-67F10650 |
| 1 | G*** | kibuzzard-67EF9C02 | kibuzzard-67EF9C02 |
| 1 | G*** | kibuzzard-67EF9C20 | kibuzzard-67EF9C20 |
| 1 | G*** | kibuzzard-67EF9577 | kibuzzard-67EF9577 |
| 1 | G*** | kibuzzard-67EF9551 | kibuzzard-67EF9551 |
| 1 | G*** | kibuzzard-67EF9C24 | kibuzzard-67EF9C24 |
| 1 | LOGO | LOGO | G*** |
Questions
How big is the Keymatrix PCB?
It measures 60 × 90 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Keymatrix use?
62 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 Keymatrix KiCad files?
From the funkeleinhorn/keymatrix repository on GitHub, at the commit this page was made from: the board is keymatrix.kicad_pcb and its schematic keymatrix.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Keymatrix design in my own project?
Its repository publishes it under the CERN-OHL-S-2.0 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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