Making Secure Payments in Russia

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It's also the only way to get air inside. Bullet-proof glass is intense.

~NSHA

It Feels Good To Be Needed

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It Feels Good To Be Needed
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Being on hold, as frustrating for doors as it is for humans.

~Not-So-Handy Andy

Secret Knock Detector

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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!