electronic eye with buzzer(LDR based) is a security system designed to surveillances of our boundary like around home, office , store room, industries etc. this system uses LDR and red LASER to detect any entry through our boundary. Whenever any interrupt is detected between LDR and LASER, signal is produced. This signal is than amplify and use to control buzzer and LEDs. All boundary has independent sensor to sense interrupt and indicate it into a buzzer alarm. It surveillances by detecting light, hence it is named as electronic eye.
Block Diagram :
Circuit diagram :
It can be used for security purposes.
Its can be used for Knockless door bell.
It can be used for automatic control of door, curtain, etc.
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