Arduino EMF detector

Arduino Science
Arduino EMF detector
YouTube player

Use an Arduino microcontroller to sense invisible electromagnetic fields using wire, a resistor, and an LED.

Aaron ALAI’s EMF detector project is awesomely simple to make and fun to use. An upgraded version can be built using an LED bargraph for more ‘meter-like’ functionality.

original project can be found here –

additional info, and Arduino sketch –

Making the Arduino EMF detector

audio/video by Collin Cunningham

1 thought on “Arduino EMF detector

  1. Mark says:

    What is the resistance?

Comments are closed.

Discuss this article with the rest of the community on our Discord server!