You know, I’m always amazed at the ability of people to make things that are cool.  Not to make things that would change the world, but something that kind of meets a need but in all reality it’s just neat or cool.

And these things can be made with small computers, called micro-controllers, that you can program to do a number of tasks.  Now I don’t have the patience or time to muck around with this kind of stuff but I apreciate the people who do. 

What the heck am I talking about?  A guy made a little computer, almost a robot, that listens at your door and when it hears the secret knock, it unlocks the door… WAY COOL..

Here’s the link, take time to watch the video too, it’s worth it.

http://grathio.com/2009/11/secret-knock-detecting-door-lock.html

To all the people who fiddle around with this kind of fun stuff, I salute you!