2 layers155.5 × 156.6 mm
2 layers155.5 × 156.5 mm
A split ergonomic wireless keyboard
- Size
- 155.5 × 156.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 54
- Nets
- 26
- Pads
- 483
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 5 (file 20171130)
- Created
- 19 Jul 2025
- Updated
- 19 Jul 2025
Overview
Left is an open-source printed circuit board by BobyWoby, from the BobyWoby/splitfire-keyboard repository on GitHub. It is a 2-layer board of 155.5 × 156.5 mm with 54 parts on 26 nets.
Its parts include 27 switches and 24 diodes. It belongs with the nRF52 and nRF5x boards of this library.
Parts
54| Qty | Value | Footprint | References |
|---|---|---|---|
| 27 | MX | S1, S2, S10, S11, S12, S13, S14, S15, S16, S17, S18, S19, S20, S21, S22, S23 +11 | |
| 24 | ComboDiode | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +8 | |
| 1 | E73:SPDT_C128955 | T1 | |
| 1 | Panasonic_EVQPUL_EVQPUC | Panasonic_EVQPUL_EVQPUC | B1 |
| 1 | nice_nano | nice_nano | MCU1 |
Questions
How big is the Left PCB?
It measures 155.5 × 156.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Left use?
54 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 Left KiCad files?
From the BobyWoby/splitfire-keyboard repository on GitHub, at the commit this page was made from: the board is output_bk/output/pcbs/left.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Left design in my own project?
Its repository states no licence, so its author keeps all rights: ask BobyWoby before reusing the design.
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