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Sound reactive led box

Here is a little drawing of how i wired the reactive led lights to a usb

21 comments

May 7, 2012. 1:15 PMsmittaunk15 says:

where does the usb and other wire goes to????????
And where i can get TIP 31 led

Apr 29, 2012. 7:38 AMFarash says:

how can i connect all the LEDs to the wires?

Apr 29, 2012. 12:22 PMajmboarding (author) says:

Solder and soldering gun

Apr 30, 2012. 12:07 AMFarash says:

can i make it without a soldering ??

Apr 29, 2012. 4:56 PMRocketboy1213 says:

If you wanted to make an 4x4x4 led cube sync with the music, how many volts would you need to power it?

Oct 28, 2011. 10:32 AMlabalavermella says:

hi!! i made the same with tip32 and the led are on only touching left or right or ground

Help!!! Thankss!! good prooject!!

Apr 29, 2012. 12:24 PMajmboarding (author) says:

I'm confused on your question

Mar 16, 2012. 3:31 PMvicsradios says:

A TIP-32 Transistor is PNP, whereas the TIP-31 is NPN.
They are wired for different polarity in a circuit.

Apr 24, 2012. 2:18 PMmps214 says:

is the USB your power source into the wall?

Apr 29, 2012. 12:22 PMajmboarding (author) says:

No computer, wall didn't work for me

Jan 6, 2012. 9:38 PMlink8853 says:

will it work with a TIP 42?

Mar 16, 2012. 3:32 PMvicsradios says:

TIP-42 should not work as shown, since it is a PNP transistor and the TIP-31 is NPN.

Feb 24, 2012. 5:17 PMautokhin010 says:

so easy!!!

Jan 17, 2012. 9:39 AMps3techguy says:

Umm do you wire the LEDs in series like neg to pos?

Oct 4, 2011. 8:12 AMelijah_rippington says:

i have build the original circuit and it has worked great. I was wondering if there was a way to wire a microphone for this. i am looking to use this in a live setting since lighting set ups cost so much. I have already attempted but with no success, any ideas?

Sep 8, 2011. 10:59 AMDJ-imani says:

how do you make a switch so that you can change from music visualization to fade in out ..i think it would be a good idea

Aug 2, 2011. 6:11 AMKevinAlien26 says:

This should workwith a larger jack correct? My stereo system only has the larger one I'm not sure what exact size it is but I'm sure you know which I'm talking about

Jul 6, 2011. 1:10 PMpjuica says:

try but the LED light does not shine with intensity and that you connect 3 led to 12v and still no intensity.

anyone know how I can do to have the intensity of the video?

May 8, 2011. 2:49 PM

Awesome-aniac says:

Sort of...5 Volts is too high for standard LEDs.

May 10, 2011. 3:46 PMajmboarding (author) says:

Well when I calculated it all out based on the specs of a typical laptop USB, it ended up working out perfectly for me so that there nice and bright. And I made a fiberglass rectangle case for it that is blurred/sanded so it looks nice.