2 layers185.6 × 150.6 mm
Splitboard right
AayanShaikh007/splitboard
A split keyboard modelled after the Ergodox with wireless connectivity and battery managment
127 parts2
2 layers183.6 × 158.3 mm
Splitboard left
AayanShaikh007/splitboard2A split keyboard modelled after the Ergodox with wireless connectivity and battery managment
- Size
- 183.6 × 158.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 129
- Nets
- 119
- Pads
- 578
- Tracks, vias
- 1,603, 288
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 9 Jul 2025
- Updated
- 4 Aug 2025
Overview
Splitboard left is an open-source printed circuit board by AayanShaikh007, from the AayanShaikh007/splitboard repository on GitHub. It is a 2-layer board of 183.6 × 158.3 mm with 129 parts on 119 nets, routed with 1,603 tracks and 288 vias.
It is built around the WS2812B. Its parts include 52 inductors, 38 diodes and 38 switches. It belongs with the keyboards and input and power boards of this library.
Main components
1README
README.mdSplitboard
A split keyboard modelled after the Ergodox with wireless connectivity
What is the Splitboard?
The splitboard is a diy keyboard modelled after the Ergodox that has wireless bluetooth connectivity and on-board battery charging/management. The most striking thing about the keyboard is probably its distinct appearance compared to other keyboards, but hopefully this will add to the ergonomics of the keyboard. For this keyboard, I wanted to incorporate a number of features that I liked about my last keyboard, such as RGB lighting and Kalih hotswap sockets, while also adressing some of the issues with my last keyboard.
Why did I make the Splitboard?
I made the splitboard as a follow up to my original keyboard to address some mistakes I made in my last keyboard. Firstly, I made the case walls way too thick, at 1 cm, where in reality I only needed 2-4 mm. Additionally, I see now that the keyboard has a very large footprint on my desk and is difficult to move into a comfortable typing position. The splitboard consists of two, very portable halves that can be arranged around your desk in any way you want. Additionally, the case is much more asthetically appealing with low-profile walls (3mm) and a voronoi pattern on the bottom. Check out the product gallery to get a preview of the project.
Product Gallery
BOM Table
| Item | Amount | Bought? | Cost (CAD) | Total Cost | Notes | Link |
|---|---|---|---|---|---|---|
| Adafruit Feather NRF52840 | 2 | n | 37.79 | 75.58 | AliExpress | |
| Switches (need 76) | 1 | n | 26.99 | 26.99 | Amazon | |
| Kalih Sockets | 1 | n | 13.57 | 13.57 | AliExpress | |
| Diodes | 1 | n | 11.36 | 11.36 | Possibly cheaper if bought with other stuff | AliExpress |
| SK6812mini-e | 1 | n | 8.04 | 8.04 | AliExpress | |
| Keycaps | 1 | n | 29.99 | 29.99 | Amazon | |
| PCB Manufacturing | 2 | n | 19.89 | 39.78 | $20 highway coupon (not applied) | — |
| Stabilizers | 1 | n | 7.29 | 7.29 | AliExpress |
| CAD | USD | |||||
| Total Cost | 212.60 | 155.20 | Note: 150 USD = 204.58 CAD |
Parts
129| Qty | Value | Footprint | References |
|---|---|---|---|
| 52 | WS2812B | syssy:BAcklight | L1, L2, L10, L11, L12, L13, L14, L15, L16, L17, L18, L19, L20, L21, L22, L23 +36 |
| 38 | 1N4148 | diode1n4148:DO35-7 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +22 |
| 30 | SW_Push | Switch_Keyboard_Hotswap_Kailh:SW_Hotswap_Kailh_MX_1.00u | SW2, SW10, SW11, SW12, SW13, SW16, SW17, SW18, SW19, SW20, SW23, SW24, SW25, SW26, SW27, SW28 +14 |
| 5 | SW_Push | Switch_Keyboard_Hotswap_Kailh:SW_Hotswap_Kailh_MX_1.50u | SW1, SW8, SW15, SW21, SW22 |
| 2 | SW_Push | Switch_Keyboard_Hotswap_Kailh:SW_Hotswap_Kailh_MX_2.00u | SW34, SW35 |
| 1 | Adafruit_Feather_Generic | Module:Adafruit_Feather | A1 |
| 1 | SW_Push | Switch_Keyboard_Hotswap_Kailh:SW_Hotswap_Kailh_MX_1.50u_90deg | SW14 |
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Questions
How big is the Splitboard left PCB?
It measures 183.6 × 158.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Splitboard left use?
129 parts, built around the WS2812B. 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 Splitboard left KiCad files?
From the AayanShaikh007/splitboard repository on GitHub, at the commit this page was made from: the board is PCB/splitboard left.kicad_pcb and its schematic PCB/splitboard left.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Splitboard left design in my own project?
Its repository states no licence, so its author keeps all rights: ask AayanShaikh007 before reusing the design.