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:
- a hat on which to build your circuit
- FLORA main board (The UV sensor does not work with Gemma or Trinket, so a Flora is required!)
- FLORA UV index sensor
- piezo buzzer
- 500mAh lipoly battery
- 2-ply conductive thread
- sewing needle and plain thread
- scissors
- pliers
- clear nail polish
Before you begin, please check out the following prerequisite guides:
