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2 layers210 × 60.8 mmS22K, the printed circuit board in 3D

22 key split keyboard

Size
210 × 60.8 mm
Copper layers
2
Thickness
1.6 mm
Parts
36
Nets
48
Pads
282
Tracks, vias
465, 111
Pours
2
Routed
Yes
KiCad
KiCad 6 (file 20211014)
Created
7 Nov 2022
Updated
23 Mar 2026

Overview

S22K is an open-source printed circuit board by DanielGrenehed, from the DanielGrenehed/S22K repository on GitHub. It is a 2-layer board of 210 × 60.8 mm with 36 parts on 48 nets, routed with 465 tracks and 111 vias.

Its parts include 22 switches, 4 connectors and 2 ICs. It belongs with the keyboards and input boards and the nRF52 and nRF5x boards of this library.

README

README.md

S22K

A 22 key split keyboard

s22k image [blocked] s22k image [blocked]

S20K

I started to use the keyboard with just 20 keys and with custom keycaps

s20k image [blocked]

Firmware

I currently run ZMK on this board. My config and layout can be found here

HS22K

My previous design, the HS22K board is avaliable here

Parts

36
QtyValueFootprintReferences
22SW_SPSTkeyswitches:Kailh_socket_PG1350SW1, SW2, SW3, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22 +6
2Conn_01x03_FemaleConnector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_VerticalJ2, J3
2Conn_02x06_Odd_EvenConnector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_VerticalJ1, J4
2LOGOLOGOG***, G***
2nice!nanonice-nano-kicad-master:nice_nanoU1, U2

The 30 most common of 36 parts.

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Questions

How big is the S22K PCB?

It measures 210 × 60.8 mm and has 2 copper layers, 1.6 mm thick.

What parts does the S22K use?

36 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 S22K KiCad files?

From the DanielGrenehed/S22K repository on GitHub, at the commit this page was made from: the board is pcb/s22k.kicad_pcb and its schematic pcb/s22k.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the S22K design in my own project?

Its repository states no licence, so its author keeps all rights: ask DanielGrenehed before reusing the design.