Metal Detector Circuit using IC 555 timer Circuit

Metal Detector Circuit

A Metal Detector circuit is made by using IC 555 timer a common device used to check people, luggage or bags in shopping centers, hotels, cinemas, etc., to ensure that a person does not carry metal or illegal things, like cannons, bombs, etc


metal detector circuit diagram

Metal Detector circuit

 Metal Detector circuit frequently found at airports, theaters, and various other public places. They are used for the safety of people to detect anyone carrying a metal. In this project, we are going to design a  metal detector circuit. There are so many metal detector designs but most of them are complex in design so here we are going to design a simple metal detector circuit using 555 Timer IC.

The above circuit shows a schematic diagram of the Metal Detector. IC 555 timer here it acts as a generator and generates rectangular wave pulses with audible frequencies for humans. The capacitor between terminal 2 and terminal 1 should not be altered as necessary to generate the sound frequency.

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