locked-up

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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!

college,lock,locked up,rubber band,stupidity
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It took him a while for him to understand why all the kids were laughing at him on his first day of engineering class. ~Not-So-Handy Andy

car,chain,locked up,padlock,wheels
By Unknown
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Because car thieves never carry any sort of tools with them. ~Not-So-Handy Andy

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