The clock I built in this project is based on a fact that has been researched for some time, namely how to choose as many colors as possible to be as different as possible visually. The area where I first encountered this problem was mapping. Maps should be really easy to read, easy to interpret and the use of appropriate colors is very important. You can find a very good implementation of an application that chooses the right colors you can find on colorbrewer.
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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