Finding The Right Magnet

A project log for Coronavirus Magnetic Face Guardian App

Use your phone's compass and a magnet on your wrist to detect face touching, including audio and vibration alerts.

Curt WhiteCurt White 03/31/2020 at 02:190 Comments

The easiest way to find a small, strong magnet is to buy one. They can be had for less than $10 and in under 4 days on Amazon:

Refrigerator magnets with a small magnetic part holding up a much larger non-magnetic part tend to work well.

There is also lots of great information online about scavenging strong magnets from household items: