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Topic: LED Matrix Spectrogram (Read 3 times) previous topic - next topic

zitron

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.

http://vimeo.com/6842040

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

-Z-

florinc

Very interested, thank you.

possan

thanks alot for the sureelectrics info, now i found alot of stuff i'll need to order  :D

AznCaleb

Thats sweet an LED panel equalizer! code would be nice  :)

mowcius

Yes code and other info would be brilliant!

Great project :D

Mowcius

zitron

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!

zitron


mowcius

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!"
:D lol

Yeah, like I said, very patient

Thanks a load anyway... :D

Mowcius

Riverboy

Very nice project.  Any chance you could also provide the source for the pc program that does the fft?   :D

zitron

#9
Oct 11, 2009, 02:30 pm Last Edit: Oct 11, 2009, 02:36 pm by zitron Reason: 1
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.

Riverboy

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?

Peeter123

Can you still upload the source code, want to use it on an 16*24 matrix ;)

zitron

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.

Lex

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.

yen

#14
Mar 01, 2010, 01:24 pm Last Edit: Mar 01, 2010, 01:25 pm by yen Reason: 1
Uhm, I can't find a .pde anywhere?  :-? (The link links to the delphi-code..)

Could you upload that one again? (Pleeeaase :) )

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