Ive seen these for bicycles about 10 years ago, but never thought - TopicsExpress



          

Ive seen these for bicycles about 10 years ago, but never thought of doing it with cars. The didnt need to make this battery-powered. a tiny generator akin to a self-winding watch would easily generate enough power to run the LEDs. The generator might even be lighter than the batteries... I think I could make one of these with an Arduino; only question is memory size (for the images) and how to detect up. I think I even have an up sensor but I dont know if it can refresh faster than once a second or so, I think it relies on a moving bb so it wouldnt work at wheel RPM...
Posted on: Sat, 18 Oct 2014 02:06:52 +0000

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