2 layers138.1 × 81 mm
2 layers133.4 × 81 mm
Split45left
davidfriar/split45A 45 percent split keyboard with horizontal stagger
- Size
- 133.4 × 81 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 56
- Nets
- 44
- Pads
- 189
- Tracks, vias
- 295, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 4 Apr 2021
- Updated
- 9 May 2021
Overview
Split45left is an open-source printed circuit board by davidfriar, from the davidfriar/split45 repository on GitHub, published under the MIT licence. It is a 2-layer board of 133.4 × 81 mm with 56 parts on 44 nets, routed with 295 tracks and 0 vias.
Its parts include 22 diodes and 1 IC. It belongs with the keyboards and input boards and the nRF52 and nRF5x boards of this library.
README
README.mdThe Split Forty Five
A small mechanical keyboard for those who cannot decide if they are ancient or modern.
- "Traditional" row-staggered layout
- Split for better ergonomics
- Based on the Nice!Nano controller for very low power consumption
- Uses Bluetooth Low Energy (BLE) both to connect each half and to connect to the computer
Parts
56| Qty | Value | Footprint | References |
|---|---|---|---|
| 22 | D_SOD-123 | Diode_SMD:D_SOD-123 | D1, D2, D3, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22 +6 |
| 18 | MX-NoLED | MX_Alps_Hybrid:MXOnly-1U-NoLED | MXL1,1, MXL1,2, MXL1,3, MXL1,4, MXL1,5, MXL1,6, MXL2,2, MXL2,3, MXL2,4, MXL2,5, MXL2,6, MXL3,2, MXL3,3, MXL3,4, MXL3,5, MXL3,6 +2 |
| 4 | LOGO | split45:leftpaw | G***, G***, G***, G*** |
| 2 | Conn_01x01_Female | Connector_Wire:SolderWire-0.15sqmm_1x01_D0.5mm_OD1.5mm | GND1, Reset1 |
| 2 | MX-NoLED | MX_Alps_Hybrid:MXOnly-1.25U-NoLED | MXL2,1, MXL4,3 |
| 1 | MX-NoLED | MX_Alps_Hybrid:MXOnly-1.75U-NoLED | MXL3,1 |
| 1 | MX-NoLED | MX_Alps_Hybrid:MXOnly-2.25U-NoLED | MXL4,6 |
| 1 | nice_nano | nice-nano-kicad:nice_nano | U1 |
The 51 most common of 56 parts.
Questions
How big is the Split45left PCB?
It measures 133.4 × 81 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Split45left use?
56 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 Split45left KiCad files?
From the davidfriar/split45 repository on GitHub, at the commit this page was made from: the board is pcb/split45left/split45left.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Split45left 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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