There is a theory that potential burglars can be tricked into thinking a home is occupied when in fact it isn't by using a fake television. This is a device that creates enough random illumination in a room to make it appear that someone's in there watching television. There are even commercial devices to do this, however if you need one - instead make your own with an Arduino. By following the instructions by Arduino forum member "modeller" you'll be fooling the thieves in no time - or at least making some interesting room lighting effects - for example:
Once it reflects around the room, the illusion of a televsion being on in a dark room could possible be emulated. So for more information, visit the project post. And for more - we're on twitter and Google+, so follow us for news and product updates as well.
If you're looking to make your own RGB LED projects, consider the Freetronics RGBLED: full colour module. It includes a bright RGB LED on the top of the board and a WS2801 constant-current, addressable, multi-channel LED driver on the back. This smart module can be daisy-chained, so you can connect a number of these together in a string and drive each of the module colours individually from your microcontroller. For more information and to order, visit the product page.