Visit the New Technabob Shop!Get Technabob in Your Mailbox! Join our Mailing List! | Follow Us: Facebook | Twitter
Awesomer Media Sites: THE AWESOMER | MIGHTYMEGA | 95OCTANE
subscribe to our rss feedsubscribe via e-mailfollow technabob on twittertechnabob facebook fan pageGoogle+follow us in feedly
Follow Us:

DIY Secret Knock Lock: Knock, Knock. Who’s There?

by Lambert Varias

One of inventor Steve Hoefer’s favorite creations is his knock-activated lock: a lock that only opens if you enter the correct knock sequence. Steve says he’s built the lock a dozen times. Instead of becoming increasingly complex, his latest build is actually easier to put together compared to its predecessors, thanks to a couple of Adafruit products.

knock-lock-by-steve-hoefer-and-adafruitzoom in

This build uses Adafruit’s piezoelectric sensor, solenoid lock and mini microcontroller. You can install the lock on any wooden drawer or door that’s at least 2 1/4″ deep.¬†Once installed, you simply record your secret knock, and the device now knows to only unlock if the same knock is repeated.

Knock twice on your browser and head to the Adafruit blog for Steve’s instructions, parts list and Arduino code.

[via Boing Boing]




Post a Comment:

Want a personal avatar on your comments? Sign up for a free Gravatar now!

Note: All comments with links in them will be held for moderation in order to prevent spam, so you may not see your post appear immediately.

Our Latest & Greatest Posts...

You Can Buy your Own Star Wars Battle Pod!

You Can Buy your Own Star Wars Battle Pod!

Disney Creating Cartoon Robots that Could Prowl Its Parks

Disney Creating Cartoon Robots that Could Prowl Its Parks

Star Wars Die Cast Cars are Wonderfully Weird

Star Wars Die Cast Cars are Wonderfully Weird

WinkPen Uses Wine, Beer and Other Liquids: Creative Juices

WinkPen Uses Wine, Beer and Other Liquids: Creative Juices

Myoware Bionic Claws Turn You into Wolverine

Myoware Bionic Claws Turn You into Wolverine

Win Prizes in the Technabob Shop

More from Awesomer Media...

The Awesomer Logo MightyMega Logo 95octane Logo
discussion by