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Author Topic: LED Matrix Spectrogram  (Read 3805 times)
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Pretty self explanatory. It's a $7.99 32x8 panels from sureelectronics. There's a huge thread somewhere about how to use them. I just wrote a simple PC program that does the FFT, and sends the data to Arduino, which displays it.



If anyone is interested, I'll upload my PC program somewhere.

-Z-
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Very interested, thank you.
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thanks alot for the sureelectrics info, now i found alot of stuff i'll need to order  smiley-grin
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Thats sweet an LED panel equalizer! code would be nice  smiley
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Yes code and other info would be brilliant!

Great project smiley-grin

Mowcius
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Sorry for the late reply.

Here's the windows program that sends the spectrum to arduino:
http://iluvtocnc.googlepages.com/LEDSpectrum.zip

And here is the arduino code:
http://iluvtocnc.googlepages.com/LED_Spectrum.zip

Have fun!
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Oh, forgot, you also need the "ht1632.h" from this thread:
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1225239439
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Oh it's ok, most of us are very patient

Quote
A few days earlier: "That idiot hasn't posted up his damn code yet!"
smiley-grin lol

Yeah, like I said, very patient

Thanks a load anyway... smiley-grin

Mowcius
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Very nice project.  Any chance you could also provide the source for the pc program that does the fft?   smiley-grin
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It's already posted. That one only does the FFT on one channel, I've made another version that displays stereo spectrum, I'll put that one up a bit later.

Oh oops, you mean the source code. It's programmed in Delphi 7, would that be Ok? I didn't write my own FFT algorithm, just used someone else's component.
« Last Edit: October 11, 2009, 07:36:52 am by zitron » Logged

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It's cool.  I'm mainly interested in how you manage to capture any sound being played on the system.  How do you manage that?  Are you using DirectSound?
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Can you still upload the source code, want to use it on an 16*24 matrix smiley-wink
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OK you can get the source code here: http://sites.google.com/site/iluvtocnc/LED_Spectrum.zip.

To build the project, you need Delphi 7.0, and VCL components Audio Lab, Signal Lab and Plot Lab, which are free on teh intarweb.
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Hi zitron,

do u know how to use 2 of these panels together? I'm trying to extend the screen by using 2 of them.
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Uhm, I can't find a .pde anywhere?  :-? (The link links to the delphi-code..)

Could you upload that one again? (Pleeeaase smiley )
« Last Edit: March 01, 2010, 07:25:27 am by yen » Logged

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