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+---- Thread: electronic watchdog ppt free download (/showthread.php?tid=22128)
electronic watchdog ppt free download - puneet000888 - 08-16-2017
ABSTRACT
Electronic watchdog is used for your house that sounds to inform you that somebody is at gate or passing through it. The circuit comprises of a transmitter unit and receiver units, which are mounted face to face on the opposite pillars of the gate or door such that the IR beam transmitted through IR LED1 of the transmitter, get interrupted when someone is standing at the gate or passing through it.