Electronic eye is also called magic eye. As the automation is an emerging technology these days, just imagine a door bell that automatically rings when a person visits your home. This also provides security when any person is trying to enter into your home without your permission. Electronic eye is a simple electronic device that continuously watches if anyone is visiting your home.
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Components Used |
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|---|---|---|
| LDR -Photocell Photoresistor LDR -Photocell, Photoresistor |
X 1 | |
| Connecting Wire Jumper Wires Connecting Wire Breadboard wires |
X 1 | |
| Buzzer 5V Buzzer 5V |
X 1 | |
| BC547 TRANSISTORS BC547 TRANSISTORS |
X 2 | |
| GPCB PCBs & Breadboards PadBoard-3U 2 sided with plated holes |
X 1 | |
| Resistor 1 Ohms Metal Film Resistors - Through Hole 1 OHM 1/4W 1% |
X 1 | |
| Resistor 1 kOhms Metal Film Resistors - Through Hole 1K ohm 1/4W 1% |
X 1 | |
| Capacitor 10 µF Aluminium Electrolytic Capacitors - Radial Leaded 100V 10uF 85C 2k Hour Radial |
X 1 | |
| 9V Battery Consumer Battery & Photo Battery 9V RECTANGLE |
X 1 | |
The main principle of the circuit is to ring the door bell when there is any person at the entrance. In order to detect a person, an LDR is used as the sensor. 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.
