Cell Phone Detector Project For Students
Circuit Diagram :- Circuit Layout :- Components List :- 3x3 inch copper clad PCB - 1 Piece CA3130 IC - 1 Piece BC 548 Transistor - 1 Piece 5mm Led - 1 Piece 0.22uf capacitor - 1 Piece 100 uf capacitor - 1 piece 47 pf capacitor - 1 Piece 9v Battery with cap - 1 Piece 1x2 green terminal - 1 Piece 100 kilo ohm resistor - 1 Piece 2.2 Mega ohm resistor - 2 Piece 1 kilo ohm resistor - 1 Piece Working:- There is natural electromagnetic field around the capacitor caused by 50Hz electric wiring. When the mobile fan radiates high frequency radiation, capacitor oscillates and release energy in the inputs of IC. This oscillation is indicating by Flashing of LED.