not-a-kludge

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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!

cool,Hall of Fame,idea,not a kludge,product
By Unknown
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And you know, whatever you find laying in your grandparent's basement. That usually does the trick.

~NSHA

By Unknown
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Youtuber Spiritplumber devised a cheap and relatively-simple way to extend your cell phone's battery life. Recording video on smart phones is notorious for draining your juice and he claims this workaround can last a few hours with just a couple of bucks. Or you can go the less ugly but more expensive route and just pick up one of these guys.

http://www.amazon.com/Duracell-Instant-Charger-Lithium-universal/dp/B002FU6KF2/ref=sr11?ie=UTF8&qid=1320097675&sr=8-1

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