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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:

https://www.amazon.com/Neodymium-Rectangular-Magnets-Countersunk-Mounting/dp/B07BLJBP5P/ref=sr_1_100

https://www.amazon.com/DIYMAG-Powerful-Neodymium-Permanent-Scientific/dp/B06XD2X45M/ref=sr_1_4

https://www.amazon.com/Bar-Neodymium-Magnet-Rectangle-Craftings/dp/B0181LX5Q0/ref=sr_1_13

https://www.amazon.com/Multi-Use-Magnets-Refrigerator-Science-Whiteboard/dp/B07MYQV446/ref=sr_1_14

https://www.amazon.com/DIYMAG-Refrigerator-Magnets-Premium-Brushed/dp/B07B3SDRCP/ref=sr_1_37

https://www.amazon.com/Bar-Neodymium-Magnet-Rectangle-Craftings/dp/B0181LX5Q0/ref=sr_1_43_sspa

https://www.amazon.com/Strong-Neodymium-Disc-Magnets-Pack/dp/B073WJMSCR/ref=sr_1_48

https://www.amazon.com/Strong-Magnets-Rare-Earth-Neodymium/dp/B07S6GJXCZ/ref=sr_1_70_sspa

https://www.amazon.com/Neodymium-Permanent-Strongest-Magnets-Applied/dp/B01M6964JY/ref=sr_1_73

https://www.amazon.com/Applied-Magnets-Grade-Neodymium-Magnet/dp/B01M22YMPO/ref=sr_1_78

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:

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