You can find a metal detector at airports, theaters and various other public places. They are used for the safety of people to detect anyone carrying a metal (Arms etc). In this project we are going to design a simple 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.

PART LIST:⤵
*)PCB
*)IC555
*)RESISTANCE 37K
*)CAPACITOR 2.2MFD
*)CAPACITOR 10MFD
*)9V BATTERY
*)9V BATTERY CAP
*)SPEAKER/BUZZER