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Splitboard left

CHAPARII·Chap-Split·PCB/splitboard left.kicad_pcb

Splitboard left PCB layout, top view — open source board by CHAPARII

About the Splitboard left PCB

Splitboard left is an open source PCB design by CHAPARII, published on GitHub. It is a 2-layer board measuring 183.6 × 158.3 mm, with 129 components from 7 distinct parts.

Other key parts include the Adafruit_Feather_Generic. By type, the board carries 52 inductors, 38 switches, 38 diodes and 1 module.

It belongs with the keyboards and iot & wireless designs in this gallery.

From the project

The keyboard uses a split layout with around 76 keys, The design is meant to be customizable and DIY-friendly. It uses Kailh hot-swap sockets, which means switches can be replaced anytime without needing to desolder them. This makes it easy to experiment with different switches l

The keyboard uses a split layout with around 76 keys, The design is meant to be customizable and DIY-friendly. It uses Kailh hot-swap sockets, which means switches can be replaced anytime without needing to desolder them. This makes it easy to experiment with different switches later. For the controller, I used the nRF52840 development board, which works well with ZMK firmware. ZMK alows the keyboard to support Bluetooth, so it can be used wirelessly. It also support customizable keymaps, layers, and other advanced keyboard features.

Splitboard left, from the project README
From the project README

Main components on the Splitboard left

Adafruit_Feather_Generic

Splitboard left bill of materials (BOM)

129 components, 7 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
Adafruit_Feather_Generic
A1
5
SW_Push
SW1, SW8, SW15, SW21, SW22
30
SW_Push
SW2, SW3, SW4, SW5, SW6, SW7, SW9, SW10 +22
1
SW_Push
SW14
2
SW_Push
SW34, SW35
38
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +30
52
WS2812B
L1, L2, L3, L4, L5, L6, L7, L8 +44

Splitboard left design files

The KiCad project lives in the CHAPARII/Chap-Split repository on GitHub; these links point at the commit this page was built from.

Splitboard left: common questions

How big is the Splitboard left PCB?

The Splitboard left measures 183.6 × 158.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Splitboard left?

129 components, from 7 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Splitboard left design files?

From the CHAPARII/Chap-Split repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Splitboard left design in my own project?

The repository has no license, so all rights stay with CHAPARII. Use it as a reference, and ask the author before reusing the design.

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