HardLabs

Sumqz s-Split-Keyboard

Sumqz·Sumqz-s-Split-Keyboard·PCB/PCB+Schematic/SplitKeyboard.kicad_pcb

Sumqz s-Split-Keyboard PCB layout, top view — open source board by Sumqz

About the Sumqz s-Split-Keyboard PCB

Sumqz s-Split-Keyboard is an open source PCB design by Sumqz, published on GitHub. It is a 2-layer board measuring 339.2 × 144.7 mm, with 188 components from 12 distinct parts.

Other key parts include the MCP23017_SP. By type, the board carries 87 switches, 87 diodes, 8 resistors, 2 ICs, 2 buzzers and 2 capacitors.

It belongs with the keyboards designs in this gallery.

From the project

Hey everyone, this is my split keyboard project.

Hey everyone, this is my split keyboard project.

I always felt that traditional keyboards were functional but boring, so I decided to build my own. It can work as two separate halves or snap together with magnets to become a full 75% style keyboard in seconds.

It is hot-swappable, uses nRF52840 boards, and is designed to be easy to build at home.

I sanity-checked this design with my friend before finalizing it.

Sumqz s-Split-Keyboard, from the project README
From the project README

Main components on the Sumqz s-Split-Keyboard

MCP23017_SP

Sumqz s-Split-Keyboard bill of materials (BOM)

188 components, 12 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
MCP23017_SP
U1, U3
2
Buzzer
BZ1, BZ2
77
SW_Push
SW1, SW2, SW7, SW8, SW9, SW10, SW11, SW13 +69
2
SW_Push
SW3, SW80
2
SW_Push
SW4, SW76
3
SW_Push
SW5, SW24, SW75
3
SW_Push
SW6, SW12, SW18
87
D
D1, D2, D3, D4, D5, D6, D7, D8 +79
2
100nF c.Cap.
C1, C2
4
4.7K
R1, R2, R5, R6
2
806K
R3, R7
2
2M
R4, R8

Sumqz s-Split-Keyboard design files

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

Sumqz s-Split-Keyboard: common questions

How big is the Sumqz s-Split-Keyboard PCB?

The Sumqz s-Split-Keyboard measures 339.2 × 144.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Sumqz s-Split-Keyboard?

188 components, from 12 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 Sumqz s-Split-Keyboard design files?

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

Can I use the Sumqz s-Split-Keyboard design in my own project?

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

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