Meter Clock, written for the 60-pixel Adafruit NeoPixel strip. by Tim Bartlett
V1 uses clock logic using delay(), and is set with a radial encoder / push-button. It loses time quickly.
V2 is written for a Teensy 3.0 (Arduino-compatible microcontroller board) with crystal soldered on, using the Arduino Time library.
Links:
Adafruit NeoPixel strip: http://www.adafruit.com/products/1138 Teensy 3.0: http://www.pjrc.com/teensy/
NeoPixel library: https://github.com/adafruit/Adafruit_NeoPixel Time library for Teensy: http://www.pjrc.com/teensy/td_libs_Time.html