photo by William Ward
This circuit is not waterproof, so don't get it wet! Leave it on your towel when you're going for a dip, hopefully within earshot. Watch out for humidity from your wet hair.

This project is a good starting point for your dream features like GPS, NeoPixel UV status indicators, and more. Modify the alert song, and show us your hat on our weekly Show and Tell on Google+!

This guide was first published on Jul 23, 2014. It was last updated on Jul 23, 2014.

This page (Wear it!) was last updated on Jul 22, 2014.

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