Expandable keyboard PCB with up to 120 keys.

What is the SU120?

The SU120 is an assemblable and expandable keyboard PCB with biscuits, screws and wire.

I use JIS Kana input method, but at that time I couldn't find split JIS keyboard PCBs.

So I designed the PCB to make the keyboard layout easy to trial and error.

You may make Row-Staggered, Column-Staggerd, Ortholinear, or other layouts keyboard.

SU is Japanese homophones: 州(sandbank) and 鬆(porous).

Why open source?

Anyone interested in keyboard could try the keyboard layout more easily.

Link

Hardware data (PCB)

Plate data (PCB)

PCB Order Guide / PCBの入手方法

Firmware

Remap/VIA Firmware Hex File

How to create a custom layout / 自由なレイアウトを作成するには

Example

15 Key (+2 Knob) Keypad

ビルドガイド

30 Key Ortholinear Keyboard

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120 Key Split Ortholinear Keyboard

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40% Row-Staggered Keyboard

Photos / ギャラリー

5% Keyboard

Photos / ギャラリー

Badge and Clip

ビルドガイド

55% Split Ortholinear Keyboard by ryuichio

ELEPHANT42 Prototype by 🐰

Pigeon44 by 🐰

18 Key 2 Knob Low-profile Keypad by 🐰