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Can someone help me to make a VU meter with (15(Row)x12(column)) x2 LED's ?? Answered

I want to construct a VU meter ...which  can be plugged into a MP3 player or a pc...and then  get the sound output from the VU meter..I made holes onto 2 bamboos where I will be placing the LED's 180 on each bamboo...There is an image also..But I would like to know that how can I make it.and which components I would require to make it....A detailed working would be really appreciated..

Thanks

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steveastroukBest Answer (author)2012-02-17

Do you mean a VU meter, or a spectrum analyser ?

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user

Can I make both in 1 circuit?? If not then any one of them will work... :)

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user

If you want a VU meter, the simplest method is to use a LM3915 bar graph driver chip, but to drive so many LEDs you need to beef up the output drivers a LOT.

Steve

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user

Yeah..that's what I want to know....How to make it...from ...A-Z..Hope I am not asking for too much..

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user

If you don't know much about electronics, yes, you're asking too much.

Get the LM3916 (that's a 6 not 5 - the 6 is a "proper" VU meter scale) datasheet first.

You can run the 3916 on 25 volts, and then you can put probably 10 Leds in series on each channel of your meter.

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Re-design (author)2012-02-17

Google "color organ". I think that's what you are really looking for.

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rahulstanley (author)Re-design2012-02-18

That's really nice...But I actually want to make a VU meter.. :) Thanks

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