Awesome
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
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
<img src="https://github.com/e3w2q/su120-keyboard-doc/blob/master/sasami17/image/sasami17-3.jpg?raw=true" width="50%">30 Key Ortholinear Keyboard
<img src="https://github.com/e3w2q/su120-keyboard-doc/blob/master/sasami30/image/sasami30.jpg?raw=true" width="50%">120 Key Split Ortholinear Keyboard
<img src="https://github.com/e3w2q/su120-keyboard-doc/blob/master/momo120/image/momo120.jpg?raw=true" width="50%">40% Row-Staggered Keyboard
<img src="https://github.com/e3w2q/su120-keyboard-doc/blob/master/negima43/image/negima43.jpg?raw=true" width="50%">5% Keyboard
<img src="https://github.com/e3w2q/su120-keyboard-doc/blob/master/negima5/image/negima5.jpg?raw=true" width="50%">Badge and Clip
<img src="https://github.com/e3w2q/su120-keyboard-doc/blob/master/badge_and_clip/image/badge_and_clip.jpg?raw=true" width="50%">55% Split Ortholinear Keyboard by ryuichio
<a href="https://twitter.com/ryuichio1/status/1186321210180718592"><img src="https://github.com/e3w2q/su120-keyboard-doc/blob/master/twitter/1186321210180718592.jpg?raw=true" width="50%"></a>
<a href="https://twitter.com/ryuichio1/status/1186655304051613697"><img src="https://github.com/e3w2q/su120-keyboard-doc/blob/master/twitter/1186655304051613697.jpg?raw=true" width="50%"></a>
ELEPHANT42 Prototype by 🐰
<a href="https://twitter.com/illness072/status/1190906588057333761"><img src="https://github.com/e3w2q/su120-keyboard-doc/blob/master/twitter/1190906588057333761.jpg?raw=true" width="50%"></a>
<a href="https://twitter.com/illness072/status/1192222524324511745"><img src="https://github.com/e3w2q/su120-keyboard-doc/blob/master/twitter/1192222524324511745.jpg?raw=true" width="50%"></a>
Pigeon44 by 🐰
<a href="https://twitter.com/illness072/status/1196688512197677059"><img src="https://github.com/e3w2q/su120-keyboard-doc/blob/master/twitter/1196688512197677059.jpg?raw=true" width="50%"></a>
<a href="https://twitter.com/illness072/status/1200561895721205761"><img src="https://github.com/e3w2q/su120-keyboard-doc/blob/master/twitter/1200561895721205761.jpg?raw=true" width="50%"></a>
18 Key 2 Knob Low-profile Keypad by 🐰
<a href="https://twitter.com/illness072/status/1191222676078989312"><img src="https://github.com/e3w2q/su120-keyboard-doc/blob/master/twitter/1191222676078989312.jpg?raw=true" width="50%"></a>