Knock-operated door unlocker keeps you on the DL

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Ripping a page straight from James Bond, enterprising hacker sprite_tm built that knock-activated door unlocker to help out a friend who wanted to keep his access to a room in his apartment building a secret. The system listens for a specific pattern of knocks speakeasy style and triggers a decidedly low-tech unlock mechanism when you enter the right knock-code — it winds a rubber band around the lock handle. We’re not assured whether we buy the backstory here (what happens when the landlord sees a giant motor gaffer-taped to the inside of the door?) but the concept is pretty sweet, and we’re even thinking of a mod to invent the door scream “TWO BIIIIIIIITS” when we knock “Shave and a Haircut”.

[Via Hack A Day]

 

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Original post by Nilay Patel

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