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Jul 8th, 2010, 05:48 AM
#5
Re: [SERIOUS] How to detect if a door is opened or not ?
 Originally Posted by akhileshbc
That's a good idea. But I don't have a webcam (only planning to buy)and I can't trust the electric power supply. Because, when a small wind blows, the power will be cut-off  And the UPS won't allow more than 10 min backup 
Laptops usually provide 4hrs backup actively and much more when not using much power (like screen turned off etc.). So electricity should not be a problem when using a laptop. Ensure that the webcam has no lights or it is turned off from whatever settings the driver/program provides.
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