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.
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.
Block Diagram
Circuit Diagram
Working
•The logic circuit operates the buzzer when any shadow falls on it.
•Power supply consists of battery, diode, regulator and capacitors.
•Here Diode used is a P-N junction diode of 1N4007 series.
•A regulator is used for regulating the output voltage of the circuit. Here the regulator IC used is 7805. 78 represents the series and 05 represents the output voltage .
•Two capacitors are used before and after the regulator. These two capacitors eliminates ripples.
PCB Mounting
Circuit Design On Breadboard
No comments:
Post a Comment