Overview

photo by William Ward

Help remember to reapply your sunblock by building a reminder right into your hat! This sewable circuit uses a FLORA sewable microcontroller and its compatible UV index sensor to sense the sun and play a tune on a piezo buzzer when its time to refresh your SPF.

This is a good beginner project because it doesn't have very many parts and requires no soldering. For this project you will need:

This guide was first published on Jul 23, 2014. It was last updated on Jul 23, 2014. This page (Overview) was last updated on May 04, 2015.