The magic of science shared by OguzC3 on Instructables. A simple, built-in, battery lights up this ring:
This LED ring do not need any battery. All you have to do is to wash your hands or put it in the water when light goes off.
Every Wednesday is Wearable Wednesday here at Adafruit! We’re bringing you the blinkiest, most fashionable, innovative, and useful wearables from around the web and in our own original projects featuring our wearable Arduino-compatible platform, FLORA. Be sure to post up your wearables projects in the forums or send us a link and you might be featured here on Wearable Wednesday!
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