The Keyboard.IO keyboard driver is Copyright 2013-2014 Jesse Vincent.

The Keyboard.IO keyboard driver is licensed under the terms of the Apache License 2.0.


The hardware/keyboardio subdirectory contains a modified version
of the hardware/arduino/ sourced from
https://github.com/arduino/Arduino/tree/master/hardware/arduino.
That content is licensed under the terms of LGPLv2.1.