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 - 4765140480
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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

cars locked up steering wheel the club - 5100124928
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But unlike his brother, he unfortunately does not double as a zombie weapon.

~NSHA