CuriousInventor has published this really cool Instructable for an rpi spectrum analyer that uses python & an RGB LED Strip:
I was able to get it doing 2048pt FFTs and decoding mp3s in real time, and while that shouldn’t be hard on a Pi considering plenty of 8bit uCs have been made to do real time FFTs, everything is done in Python, which makes it convenient (for me) to eventually add control via a web browser, sms, and other things. There’s not much room to spare, though, it chokes when I move the mouse.
Learn how to make one yourself here!
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