security

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Steve Hoefer at Grathio labs shows off his Arduino based door opener, which responds to knocks on the door bye timing the gaps between the sounds. If the gap matches the programmed knock, it unlocks. Let's never use keys again!

Know a little bit about Arduino and care to make your own? Check out his Instructables post!

cars holding it up security - 5491970560
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From the submitter

Just happy this isn't my car. It was actually being driven. The driver used a rope to keep the door closed while driving.

cars dual use locked up security tape - 5112791040
By Radix
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Add more locks and crappy tape over your tail lights and he may stay in there.

~NSHA

security lock gate - 6970393344
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There's no way anyone is getting in here. Don't even try.