2 layers131.2 × 132.5 mm
2 layers284.7 × 99.7 mm
SimplySplit
Enzo13221/SimplySplitSplit Keyboard with reversible pcb
- Size
- 284.7 × 99.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 73
- Nets
- 39
- Pads
- 260
- Tracks, vias
- 311, 51
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 28 Jan 2026
- Updated
- 2 Apr 2026
Overview
SimplySplit is an open-source printed circuit board by Enzo13221, from the Enzo13221/SimplySplit repository on GitHub. It is a 2-layer board of 284.7 × 99.7 mm with 73 parts on 39 nets, routed with 311 tracks and 51 vias.
Its parts include 18 diodes, 18 switches, 2 resistors, 1 IC and 1 connector. It belongs with the keyboards and input boards and the nRF52 and nRF5x boards of this library.
README
README.mdSimplySplit
This is my low profile split keyboard. I made this because I really wanted to make a keyboard but also didnt want it to be too simple. This is why I made a bluetooth split keyboard. Because of it's small form factor it can "fit" into your pocket. This is useful as I really enjoy using my old RasPi on the go and a bt keyboard is realy useful.
Images
(If you noticed that the connector for the Battery is being clipped by the top plate I decided to not use the connector but leave the footprint there as an option)
Firmware can be found here
https://github.com/Enzo13221/ZMK-Config-SimplySplit
BOM
| Item | Description | Quantity | Unit price | Total price | Price + tax | Running total | Link |
|---|---|---|---|---|---|---|---|
| Keycaps | CFX, White | 40 | $0.33 | $13.07 | $14.77 | $14.77 | AliExpress |
| Switches | Choc v1 brown | 40 | $0.74 | $14.87 | $16.80 | $31.57 | AliExpress |
| Batteries | 3.7V 200mAh | 2 | $2.84 | $5.68 | $6.42 | $37.99 | AliExpress |
| Molex Connector | WM1742-ND | 2 | $0.45 | $0.90 | $1.02 | $39.01 | DigiKey |
| Resistor | MFR-25FBF52-806K | 2 | $0.14 | $0.28 | $0.32 | $39.32 | DigiKey |
| Resistor | HVR3700002004FR500 | 2 | $0.58 | $1.16 | $1.31 | $40.63 | DigiKey |
| Diode | 1N4148W | 45 | $0.19 | $1.89 | $2.14 | $42.77 | DigiKey |
| PCB+Top plate | See attached image | 1 | $42.79 | $42.79 | $42.79 | $85.56 | N/A |
| Bolts | M3x20mm | 20 | $0.18 | $3.54 | $4.00 | $89.56 | AliExpress |
| Spacers | M3x6mmx1mm | 200 | $0.02 | $2.21 | $2.50 | $92.06 | AliExpress |
Parts
73| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | D | Diode_SMD:diode123reverse | D1, D3, D5, D11, D13, D15, D17, D19, D21, D23, D25, D27, D29, D31, D33, D35 +2 |
| 18 | SW_Push | kicad.mod:SW_PG1350_reversible | SW1, SW3, SW5, SW11, SW13, SW15, SW17, SW19, SW21, SW23, SW25, SW27, SW29, SW31, SW33, SW35 +2 |
| 14 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H1, H2, H2, H3, H3, H4, H4, H5, H5, H7, H7, H8, H8 |
| 2 | R | Resistor_SMD:R_0805_2012Metric | R1, R3 |
| 1 | BAT | TestPoint:TestPoint_Pad_D2.5mm | TP1 |
| 1 | Conn_01x02 | Connector_Molex:Molex_PicoBlade_53048-0210_1x02_P1.25mm_Horizontal | J1 |
| 1 | GND | TestPoint:TestPoint_Pad_D2.5mm | TP3 |
| 1 | XIAO-nRF52840-SMD | kicad.mod:modified-XIAO-nRF52840-SMD (1) | U1 |
The 56 most common of 73 parts.
Questions
How big is the SimplySplit PCB?
It measures 284.7 × 99.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the SimplySplit use?
73 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 SimplySplit KiCad files?
From the Enzo13221/SimplySplit repository on GitHub, at the commit this page was made from: the board is Kicad/Simply Split.kicad_pcb and its schematic Kicad/Simply Split.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SimplySplit design in my own project?
Its repository states no licence, so its author keeps all rights: ask Enzo13221 before reusing the design.
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