Simple Metal Detector Circuit

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Introduction: Simple Metal Detector Circuit

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Here is another simple but very useful circuit named Metal Detector Circuit. Metal detector is very common device for checking the person in shopping malls, hotels, cinema halls to ensure that person is not carrying any explosive metals or illegal things like guns, bombs etc. Are you interested to know how to design this circuit, working and applications of this circuit? Then read the post - Simple Metal Detector Project Circuit.

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The last pic was not as clear.

20170702_155231[1].jpg

i want to make a metal detector using tda0161, when the detector detects the metal from a specific distance the buzzer sounds but as the metal comes near and near the buzzer sound increases!!

so anyone guide me for this

i want to use this with arduino