[Video] Knock Your Secret Code And This Awesome Gadget Will Unlock Your Door For You.

How old fashion it is to unlock your door using your keys? Not only is it old-fashioned, the repeated jingling of the keys as you fumble for the right key is just plain annoying. What you need is a new and innovative way of opening your door without having to spend on a top-notch security system.

This project features an awesome gadget that you can easily make that allows you to unlock your door by knocking a secret code you made yourself.

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Continue to the Next Page to watch this amazing video: Unlock Your Door With A Knock!

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