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grathio.com - 18 days ago

Secret Knock Detecting Door Lock

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How many times have you seen a secret hideout with a secret knock?  It's a staple of cheesy dramas, Saturday afternoon movies, and tree houses throughout the world.While working on another project I ran across the Arduino knock sensor tutorial. ...

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youtube.com - 18 days ago

Secret Knock Detecting Lock (video)

— youtube.com — Unlock your door with a secret knock. More information, source and schematics at http://grathio.com (more) Secret Knock Detecting Lock (video)

Comments vote downundo vote up MAKE Magazine found this 18 days agofound this

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techeblog.com - 16 days ago

Knock-Detecting Door Lock Lets You Unlock with a Secret Knock

— techeblog.com — Lost your keys and can't get into the house? Meet the knock-detecting lock. This contraption unlocks your door with a secret knock to the "rhythm of your favorite song, morse code", etc. Video after the break. The widget will play back your knock ... (more) Knock-Detecting Door Lock Lets You Unlock with a Secret ...

Comments vote downundo vote up GadgetReview found this 16 days agofound this

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hackedgadgets.com - 15 days ago

Knock Lock - Unlock a Door with a Secret Knock

— hackedgadgets.com —   Piezoelectric elements can be used to make sound or detect sound. Steve Hoefer has made a Knock Lock , which is a device that can listen to knocks on the door. If the sequence of knocks is the same as the recorded knock sequence it ... (more) Knock Lock - Unlock a Door with a Secret Knock

Comments vote downundo vote up Engadget found this 15 days agofound this

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Secret knock detector
MAKE Magazine — ... RFID card readers becoming passé? Maybe what you need to guard the door to your high-tech lair is a secret knock detecting door lock. Using an Arduino and a bunch of parts found around the lab, Steve Hoefer built a device that unlocks your door when it receives a certain knock pattern. It works by counting the time between successive knocks, and can be re-programmed at the touch of a button. ...

Knock-Detecting Door Lock Lets You Unlock with a Secret Knock
Tech Blog — ... Lost your keys and can't get into the house? Meet the knock-detecting lock. This contraption unlocks your door with a secret knock to the "rhythm of your favorite song, morse code", etc. Video after the break. The widget will play back your knock (by blinking the lights) so you can be sure it heard everything correctly. The whole thing is attached to the door with suction cups. [via Grathio]

Make Your Own Secret Knock Detecting Door Lock [DIY]
Gizmodo — ... of stuff he had lying around the lab. It works by keeping track of the time between a pattern of successive knocks. It's probably not the most secure way to lock a door, but Hoefer notes that there is a lot of room for improvement on this design. Besides making it small enough to actually fit in a doorknob, you could program it to accept a variety of knock patterns, including different knocks at different times of the day. Hit the link for instructions on how to build one yourself. [Grathio via ...

Knock Lock - Unlock a Door with a Secret Knock
Hacked Gadgets - DIY Tech Blog — ... elements can be used to make sound or detect sound. Steve Hoefer has made a Knock Lock, which is a device that can listen to knocks on the door. If the sequence of knocks is the same as the recorded knock sequence it unlocks the deadbolt on the door. Steve was the guy who also made the ...

'Secret Knock' Door Lock defends home from rhythmically-impaired perps (video)
Engadget — ... The Arduino board has been the engine of many wild and wacky projects over the years, from bakery tweeting to various musical instruments. For its next trick, our man Steve Hoefer has taken his microcontroller and, along with a piezoelectric ...

DIY Detector Opens Doors Upon Correct Knock
The Gadget Blog — ... But perhaps the best thing about Steve Hoefer’s Secret Knock Detecting Door Lock is that its a result of a DIY project. Conceivably, with the instructions available here, you can secure your own doors, limiting access only to people who know the correct knock pattern. ...