be sure to burn arduino bootloader onto new attiny chips (TODO: why?)
upload using Attiny85 w/internal 8MHZ Clock
has multiple display modes:
- solid white along color temperature range
- solid colors along rainbow (Adafruit Wheel)
- random
- rainbow Wipe (similar to Adafruit's rainbow Wipe)
uses two potentiomers
- one for brightness control
- one for hue control or transition speed