Carl F Sutter (CarlS of TeleToyland) shared a tutorial for creating a Neopixel Ring Fireplace. Here’s what he had to say: “This holiday project uses some papercraft, a Neopixel Ring and an Arduino or Trinket.”
An Arduino Uno, or similar. The nice thing about an Uno is that there is a 5v regulator you can use to power the LEDs, but with one of the smaller Arduino boards, you can use an external 5v power supply to drive the LEDs and the board. …The Adafruit Trinket would probably work well for this project too.
(3) pieces of solid core 20 gauge wire, each 7″ long. Different colors for +5v, Gnd, and Data would be nice, but not necessary.
Power can come from a wall adapter for the Arduino (6v dc – 12v dc, where lower is preferred), or the USB port. For a remote location, you can use a 9v battery clip with a 2.1mm ID plug. A battery will not last long, though, depending on how many LEDs you have on over time….
Eink, E-paper, Think Ink – Collin shares six segments pondering the unusual low-power display technology that somehow still seems a bit sci-fi – http://adafruit.com/thinkink
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