Build you own metal detector

Science Technology

By Phillip Torrone

Phillip Torrone

current: @adafruit - previous: MAKE, popular science, hackaday, engadget, fallon, braincraft ... howtoons, 2600...

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@adafruit

February 20th, 2006 4

Here’s a pretty simple and fun metal detector you can make. It’s a BFO (beat frequency oscillator) – when metal is detected it changes the sound coming out from the speaker. [via] Link.

Tagged DIY Projects

By Phillip Torrone

Phillip Torrone

current: @adafruit - previous: MAKE, popular science, hackaday, engadget, fallon, braincraft ... howtoons, 2600...

View more articles by Phillip Torrone

@adafruit

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