Everything in the display that you see is controlled by a credit card sized controller called a Raspberry Pi and LightShow Pi. These two main components along with 16 relays, some wiring, a music playlist and lots of lights and extension cords make the show you see. I encourage you to see all the things you can do with the Raspberry Pi on their website at http://www.raspberrypi.org.
The show consists of 5,000 lights split into 16 channels. Over 1000 feet of extension cords connect the lights to the channels. The Raspberry Pi tells the relays to turn on or off based on the current sound frequency. Each channel can turn on and off 100+ times per minute.
The Raspberry Pi also sends the FM signal that you listen on your radio for the music, as well as the controller that is found on this website.
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