Last year a NeoPixel ring with 24 LEDs blinked in our Christmas tree. I presented it on the last MakerFaire Hannover, but unfortunately it was too close to the Tesla coil on our booth, and it stopped working. To be prepared for this year’s Christmas I ordered new rings from Watterott – not one, but three: 16, 24, and 32 LEDs.
Last weekend the MakerFaire Hannover 2014 took place, and the Arduino Group Hannover attended the Faire. Again Watterott was one of the exhibitors – it was clear, that this will be an expensive weekend ;-).
One of the things I bought was the NeoPixel Ring from Adafruit – a very nice toy!
In this article I will extract some of the documentation in the original neopixel library, so that I (and perhaps you) have it in one place without the disturbance of the actual code.