Designing Keyboard 101

How to Design my/your own keyboard

Transcript

1. Designing Keyboards 101 @nasa9084
2. $ whoami • @nasa9084 • LINE corp. • Go / Kubernetes
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6. What are you using?
7. FILCO Majestouch Convertible 2 (Cherry MX Blue) 2016.04 - 2018.10
8. Ergodox EZ (Cherry MX Blue) 2018.10 -
9. Ergodash (Kailh BOX white) 2019.02 -
10. Self-madeʁ
11. Self-made Keyboards • Buy keyboard kit, build by your hands • Shop • https://yushakobo.jp • About 25,000 yen ~
12. Mint60 By eucalyn_
13. Corne Cherry By foostan
14. Nomu30 By recompile keys
15. Keyboard Related Addiction • Keyboard Buying Addiction • Keyboard Making Addiction • Key-switch Acquisition Syndrome • Key-cap Acquisition Syndrome • Cable Making Addiction • Keyboard Designing Addiction
16. Designing Keyboards 101 @nasa9084
17. Components • Key-switches (Cherry MX compatible) • Key-caps • PCB • Diode (1N4148/1N4148W) • Controller (ProMicro) • Cable, Reset switch, Jack, LEDs, and so on…
18. Cherry MX (compatible) switches 40 yen / key ~
19. ProMicro Arduino compatible micro controllers by sparkfun 2,492yen
20. ProMicro compatible controllers Arduino compatible controller compatible controller… 300 yen~
21. QMK Firmware • Open source keyboard firmware for ProMicro • https://github.com/qmk/qmk_firmware • Support 6 keyboards and community keyboards $ git clone github.com/qmk/qmk_firmware $ cd qmk_firmware $ make $KEYBOARD:$KEYMAP:avrdude # if your keyboard is Mint60 $ make mint60:default:avrdude
22. Designing
23. First step to the Endgame https://booth.pm/ja/items/1044084
24. How to Design a Keyboard 1. Design key layout 2. Design schematic 3. Map schematic and footprint 4. Arrange parts layout 5. Wiring 6. Order your PCB
25. Design Key Layout • Design with Keyboard Layout Editor • http://www.keyboard-layout-editor.com
26. http://www.keyboard-leyout-editor.com
27. Keyboard Layout Preset • Begin from famous keyboards • Add new keys you want • Remove keys you don’t use http://www.keyboard-layout-editor.com
28. Design Schematic • Use KiCad • is a CAD for creating PCB • http://kicad-pcb.org •  • Current stable is 5.1.2
29. Key Matrix • 14 pins are avail for key input • Layout keys in a matrix to use many keys • Detect a key by 2 pins
30. Other Components • Connect all components to ProMicro • Connect left and right by TRRS cable • Reset switch to reset ProMicro • (Optional) LED
31. TRRS Cable • 3.5mm - 4 contacts phone connector cable • Tip-Ring-Ring-Slave cable • Hard to find to buy • Connect right hand and left hand
32. Map Footprints Schematics → Parts
33. Arrange Parts Layout • Can use raw data from keyboard- layout-editor • Can use Python script © By foostan
34. Wiring Components • with 0.25mm wire • 0.5mm for power • Very hard… © By foostan
35. Order PCB • Output Garber format file • Confirm with KiCad GarbView • Measure size • Rename files • Order from https://www.elecrow.com
36. Q?