How to make a DIY Magnetic Field Detector Alarm using simple electronics !

Here we will discuss about how to make a simple magnetic field detector alarm using simple electronics. A  Magnetic field Detector Alarm is a simple electronic device that is designed to detect magnetic presence and gives an trigger to the buzzer according the corresponding magnetic presence. You can submit this simple project for you school exhibition. Now Lets Start...

Components Required for this project

Reed Switch,LM393IC, BC557 Transistor, 1N4007 Diode, 10k ohm Resistor, 10k Potentiometer,  Capacitor 100n ,Red LED, 5V buzzer.

The above figure shows the circuit diagram of Magnetic Field Detector using simple electronics. If you have read my previous blog ,then you will find out that both the circuit diagram is exactly same .It is not an error, we can  use this circuit to make this project also . The only difference in both project is that ,In Rain detector we connect the point A and B to two independent metal plates. Here we connect Point A and B to a "Reed switch".  A reed switch is an electromagnetic switch used to control the flow of electricity in a circuit. They are made from two or more ferrous reeds encased within a small glass tube-like envelope, which become magnetized and move together or separate when a magnetic field is moved towards the switch.

Thank you For Reading😀.....

For further doubts and clarification  related to project, email me at indhuchoodanr@hotmail.com