Keys are so last century. Hack your door to lock and unlock via text messages.
Billy Chasen wanted to ditch his keys and control the door to his office via text messaging. He built a simple device which consists of a tiny web server, a servo motor, and some parts from Home Depot. The end product, although a bit hacked together looking for lack of a case covering up the guts, has total control over the locking mechanism of the door. He can lock and unlock the door, add people to a whitelist to grant access to coworkers, and otherwise modify the door control by modifying the tiny embedded web server.
Check out the video above to see it in action or visit the link below to grab a copy of the code. For more lock-tinkering antics make sure to check out previous hacks like the DIY Key-Fob Front Door Opening, the DIY Keypad Door Lock, and the DIY Secret Knock Detector.
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Source: http://www.gawker.com