
Bsl array v1
jackw01/scanlight
A better light source for scanning color negative film

A custom made split keyboard.
Splitkeyboard is an open-source printed circuit board by loganw023, from the loganw023/wheatsplitter repository on GitHub. It is a 2-layer board of 262.1 × 100 mm with 110 parts on 83 nets, routed with 670 tracks and 95 vias.
Its parts include 42 diodes, 42 switches, 4 resistors and 2 ICs. It belongs with the keyboards and input boards and the nRF52 and nRF5x boards of this library.
This is a custom split ortholinear mechanical keyboard. I built this project to qualify for Outpost and to further my PCB, CAD, and coding skills. I was also interested in building this keyboard because I worked on Hackpad last summer, and wanted to continue building keyboard-type projects. This project taught me a lot about PCB design, especially since my last PCB was done in December. I also learned a lot about the specifics on how keyboard matrixes work, which was very interesting.
Here is my schematic:
Here is the PCB:
Here is the CAD for the case:
| Qty | Value | Footprint | References |
|---|---|---|---|
| 42 | D | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +26 |
| 42 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +26 |
| 8 | LOGO | LOGO | G***, G***, G***, G***, G***, G***, G***, G*** |
| 6 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4, H5, H6 |
| 4 | TestPoint | TestPoint:TestPoint_Pad_D2.0mm | TP1, TP2, TP3, TP4 |
| 2 | 2M | Resistor_SMD:R_0805_2012Metric | R3, R4 |
| 2 | 806k | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | MountingHole | footprints:mouse-bite-5mm-slot | H4, H7 |
| 2 | XIAO-nRF52840-SMD | footprints:modified-XIAO-nRF52840-SMD | U1, U2 |
It measures 262.1 × 100 mm and has 2 copper layers, 1.6 mm thick.
110 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.
From the loganw023/wheatsplitter repository on GitHub, at the commit this page was made from: the board is PCB/splitkeyboard.kicad_pcb and its schematic PCB/splitkeyboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask loganw023 before reusing the design.

jackw01/scanlight
A better light source for scanning color negative film

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