Metal detector is a security device which is used for detecting metals which can be harmful at various places like airports shopping malls cinemas etc.
Metal detector sensor interfacing with arduino.
This project explains the concept of detecting the presence of a metal using the method of inductive sensing.
Previously we have made a very simple metal detector without a microcontroller now we are building the metal detector using arduino in this project we are going to use a coil and capacitor which will be responsible for the detection of metals.
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The basic concept used is that the presence of a metal can vary the inductance value of an inductor.
Build a simple arduino based metal detector project using coil and capacitor.
Metal detector is a device used to detect the presence of a metal in its proximity without touching it.
Wiring a metal detector with npn proximity sensor on arduino in this illustration we will going to wire the npn inductive proximity sensor to detect metal or any metal objects this device also can be used as a metal detector screening when people walking through the entrance to find metal objects.
Find here the complete project tutorial with circuit diagram and code.