USB HID Keyboard firmware for TinyGo

The API is not yet fixed.

The following are supported.

• key input
  • squared matrix scan
  • matrix scan
  • duplex-matrix scan
  • rotary encoder
  • GPIO
  • UART
  • Shifter (tinygo.org/x/drivers/shifter)
• layer feature by mod key
• mouse click / mouse wheel
• support TRRS (UART)
• support Vial
  • Keymap
  • Layers (MO(x), TO(x))
  • Matrix testers
  • Macros
  • Mod-Tap
  • Modifier Keys
  • Combos

Microcontrollers

The following microcontrollers are supported.

• rp2040
• nrf52840
• samd51
• samd21

Tutorial

• tutorial.md

Additional Resources

• Create Your Own Keyboard with sago35/tinygo-keyboard (dev.to)
• 自作キーボードをTinyGoで作る (Qiita, Japanese)

sgkb-0.4.0

# sgkb-0.4.0
$ tinygo flash --target xiao-rp2040 --size short --stack-size 8kb ./targets/sgkb/left/
$ tinygo flash --target xiao-rp2040 --size short --stack-size 8kb ./targets/sgkb/right/

# sgkb-0.3.0 or before
$ tinygo flash --target xiao-rp2040 --size short --stack-size 8kb ./targets/sgkb/left-0.3.0/
$ tinygo flash --target xiao-rp2040 --size short --stack-size 8kb ./targets/sgkb/right/

• files
  • ./kicad/sgkb for KiCad 7.0
    • KiCanvas : sgkb-0.4.0 left
    • KiCanvas : sgkb-0.4.0 right
    • KiCanvas : sgkb-0.3.0 left
    • KiCanvas : sgkb-0.3.0 right

name	amount
Cherry MX / Kailh Choc V1	72
key cap (1u)	68
key cap (1.5u)	1
key cap (1.75u)	1
key cap (2u)	1
key cap (ISO-ENTER)	1
Stabilizer (2u)	2
diode 1N4148	72
xiao-rp2040	2
pin header 1x7	4
TRRS connector	2
TRRS cable	1

sg48key

tinygo flash --target xiao --size short --stack-size 8kb ./targets/sg48key/

• files
  • ./kicad/sg48key
    • KiCanvas : sg48key

sgh60

tinygo flash --target waveshare-rp2040-zero --size short --stack-size 8kb ./targets/sgh60/

• files
  • ./kicad/sgh60
    • KiCanvas : sgh60

wiokey-0.1.0

$ tinygo flash --target wioterminal --size short --stack-size 8kb ./targets/wiokey/

• files
  • ./kicad/wiokey for KiCad 7.0
    • KiCanvas : wiokey

name	amount
Cherry MX / Kailh Choc V1	6
key cap	6
diode 1N4148	6
wioterminal	1
pin socket 2x20	2

sgkey-0.1.0

$ tinygo flash --target xiao-rp2040 --size short --stack-size 8kb ./targets/sgkey/

• files
  • ./kicad/sgkey for KiCad 7.0
    • KiCanvas : sgkey
• build guide
  • ./targets/sgkey/README.md

name	amount
Cherry MX / Kailh Choc V1	6
key cap	6
diode 1N4148	6
xiao-rp2040	1
i2c ssd1306	1
register 10k ohm	2

fric10key-0.1.0

$ tinygo flash --target xiao-rp2040 --size short --stack-size 8kb ./targets/fric10key/

• files
  • ./kicad/fric10key for KiCad 7.0
    • KiCanvas : fric10key

name	amount
Cherry MX / Kailh Choc V1	27
key cap (1u)	26
key cap (2u)	1
Stabilizer (2u)	1
diode 1N4148	27
xiao-rp2040	1

xiao-kb01

$ tinygo flash --target xiao-rp2040 --size short --stack-size 8kb ./targets/xiao-kb01/

• files
  • ./kicad/xiao-kb01 for KiCad 7.0
    • KiCanvas : xiao-kb01

Gopher Badge

$ tinygo flash --target gopher-badge --size short --stack-size 8kb ./targets/gopher-badge/

• schema
  • https://gopherbadge.com/

GoBadge / PyBadge

$ tinygo flash --target gobadge --size short --stack-size 8kb ./targets/gobadge

• schema
  • https://learn.adafruit.com/adafruit-pybadge

MacroPad RP2040

$ tinygo flash --target macropad-rp2040 --size short --stack-size 8kb ./targets/macropad-rp2040/

• schema
  • https://learn.adafruit.com/adafruit-macropad-rp2040/overview

Restore default keymap

Set the key with the key code of 0x7C03, and then press it.
Then a reset will restore the default keymap.
See #8.

Restore default keymap (tinygo flash)

Restore default keymap each time it is reset by specifying --tags reset_to_default.
Note that in this setting, any changes made from Vial or other sources will immediately revert to the original setting.

$ tinygo flash --target wioterminal --size short  --tags reset_to_default ./targets/wiokey

Note

• Basically, the --stack-size 8kb settings is required.
• If changing the version of tinygo-keyboard causes it to not work properly, please perform the Restore default keymap procedure.

LICENSE

MIT