After getting interested in the world of Arduino, Andrew Tuline turned his hand to controlling a length of RGB LEDs for a Christmas decoration. Not content with simply blinking the LEDs or displaying a pattern, he used an MSGEQ7 spectrum analyser IC which accepts analogue audio and outputs the levels of each frequency band, perfect for an interactive light show - for example:
Each LED is controlled by a WS2801 IC, which individual control of the LEDs. Not bad at all! So click here for more information. And for more, we're on twitter and Google+, so follow us for news and product updates as well.
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If you're looking to make your own projects that could use different light effects, consider one or more of the Freetronics RGBLED: 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.