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Electronic eye controlled Security System. Electronic eye is also called magic eye. As the automation is emerging technology these days. Just imagine a door bell that automatically rings when a person visit your home. This also provides security when any person is trying to enter into your home without your permission. Electronic eye is the electronic device that continuously watches if anyone is visiting your home. Main Principle :- The main principle of the circuit is to ring the door bell when there is any person at the entrance. Light on the LDR determines whether a person is present or not. When there is any object at the entrance, LDR is in dark and buzzer starts ringing and the LED starts glowing. Components :- 1.7805 Regulator IC 2.Resistors (R1,R2,R3,R4,R5) 3.Capacitors (C1.C2) 4.Transistors (BC 547- Q1,Q2) 5.Diodes (IN4007-D1,D2) 6.LDR (Light Dependent Resistor ) 7.LED (Light Emitting Diode) 8.Buzzer. 9.B