Metal Detector Using 555 Timer. The 555 timer ic here used to create a square wave frequency and it generates pulses with frequencies audible to a human. The other day when i was searching instructables i come across on interesting and simple circuit for metal detector.
The circuit diagram shows all the connections of the metal detector circuit. Simple metal detector circuit using 555 timer ic you can find a metal detector at airports theaters and various other public places. When a magnet is close the choke 10mh output frequency changes.
Here in this metal detector circuit we are using a timer ic 555 and inductor to detect metals and alert the user by means of an alarm from simple buzzer.
Here in this metal detector circuit we are using a timer ic 555 and inductor to detect metals and alert the user by means of an alarm from simple buzzer. This circuit can be powered from a power supply which can give an o p dc voltage between 6 12 volts. Instructable that inspire me to do this project was this one. In this project we are going to design a simple metal detector circuit.
