Electronic Watchdog


Posted on Mar 28, 2007

As shown for the electronic watchdog circuit. It has the ability of ordinary dog guard the house. Whenever someone enters the door 10 meters monitored area, it will send out a


Electronic Watchdog
Click here to download the full size of the above Circuit.

realistic barking. Such calls can be maintained for 10 seconds, if the person does not leave, the electronic watchdog would have been called down.




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