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 05, 2021.

Text editor powered by tinymce.