RGB backlight for MinOrca

Example of adding WS2812b LEDs to a MinOrca.

http://www.40percent.club/2016/08/tiny-whale.html

The keymap is a work in progress. The RGB functions are accessed by holding down the TAB key.

Shortcut	Function
Tab + Z	Toggle on/off
Tab + X	Mode
Tab + C	Hue+
Tab + V	Hue-
Tab + B	Saturation+
Tab + N	Saturation-
Tab + M	Brightness+
Tab + ,	Brightness-

Example wiring:

WS2812 data pin is connected to D5