Showing off spectrum analyzer on LCD

Just wanted to show off the small project I threw together using an rMP3 and a serial LCD on a Duemilanove.

http://www.youtube.com/watch?v=op-FcjMh3IA

It shows 10 bands during playback. Can get up to 23 bands from the rMP3, but don't have enough space on the LCD to display them.

Go here for more info: http://www.roguerobotics.com/wikidocs/projects/rmp3/spectrum_analyzer_demonstration

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cool board! :)

You know what. I'm impressed. No daft punk! ;D

Funny guy! :P

I heard that Armin, Guy and Thomas are all buddies (that's "mates" to you) anyway.

(if you believe that... I've also got some cool state-of-the-art write-only-memory I can sell you, CHEAP!)

can you make a small video with a sine-sweep from 1hz to 20khz?

would be interesting to see :)

I can tell you without doing the sweep that it won't be what you expect. VLSI (the mp3 decoder manufacturer) indicates that:

The analysis of low frequencies is not very accurate in the VS1011 version.

But overall, I've found that you get a pretty good representation of what is going on. Also, when you boost up the serial connection to the rMP3 up to 115200 bps using a hardware serial port, you get more samples, and it responds more smoothly.

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