~ruther/qmk_firmware

ref: 17906df945e1fadcd9a63f98e66d9b7a8f6e8f15 qmk_firmware/keyboards/handwired/onekey/stm32f405_feather/readme.md -rw-r--r-- 346 bytes
17906df9 — Wilfried JEANNIARD [Keyboard] add willoucom/keypad (#21714) 2 years ago

#Adafruit Feather STM32F405 Express onekey

To trigger keypress, short together pins GPIO 12 / PC2 and GPIO 11 / PC3.

https://learn.adafruit.com/adafruit-stm32f405-feather-express/dfu-bootloader-details#enabling-dfu-bootloader-mode-3045622-2