MAKE: Blog: HOW TO - Make a RGB combination door lock

HOW TO - Make a RGB combination door lock

Prototyped-Board-Rgb-Howto
Hack-a-day has a great how to on making a RGB combination door lock - thanks Wil!

Putting a custom designed electronic lock on your space seems like a geek right of passage. For our latest workspace, we decided to skip the boring numbered keypad and build a custom RGB backlit keypad powered by an Arduino. Instead of typing in numbers, your password is a unique set of colors. In today's How-To, we'll show you how to build your own and give you the code to make it all work.
The basic design for the RGB keypad came from [JMG]'s Arduino based Monome clone. He used an Arduino, and multiplexed RGB LEDs with some digital potentiometers to create a color mixing keypad. Since we couldn't fit the complete 4x4 keypad into a standard 2 gang wall box, we chopped the design down to a 2x4 matrix. This cuts down significantly on the cost to build the keypad and makes the code that much easier to digest.

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Comments

Oldest comments listed first.

Posted by: Aud1073cH on June 17, 2008 at 11:59 AM

This project uses an electronic door lock to grant access after correct button pushing.

Hackaday also posted this:
http://www.hackaday.com/2008/06/16/ring-of-the-devil-electric-lock-exploit/

a magnetic lock pick to defeat just such a lock.

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