LEDs sync to music (with pics of my awesome computer case mod)

 I'm finishing up my computer table i've been working on and one of the final touches is making LEDs sync to the speakers.  I have some pics of my computer too.  This project took me about 15 minutes and was free because i had the parts laying around.  

Step 1: Materials

 Items:

-TIP31 transistor

-4 LEDs or 12v led strips

-wire

-on/off switch

-3.5mm jacks (1 male and 1 female)

-solder

Tools:

-soldering iron

-wire strippers/cutters

Comments

[najibg96]

thanx

another question:

i bought an TIP31C transitor

this transistor also good??

[musick_08]

well i havn't used it before, but yeah i think it should work. ive read things about where people have used them

[mossDboss]

my experience is that several different transistor will work.

[xDGx]

This is great, works fine here.
I want it to pulse with the bass *only*. Is there a way to make a filter for it ? thanks

[mossDboss]

Yes, there are ways to "pulse" bass only or rather to "pulse" at a certain frequency. To achieve a pulse a certain frequency you need the correct IC, Capacitors and Resistors, you also need to know how to connect it all - I know how to read a schematic and set up a circuit, but I do not know how to achieve a certain "pass filter' without someone telling me the capacitor and resistor values.

[musick_08]

Hmm honestly I'm not sure. I guess you could connect only a subwoofer or something to this to get the effect. But i don't know of a filter or anything

[m.hashemi]

hello to all

[waldo55]

Thank you for making this instructable i tried this out and it worked grate. one thing i used this diagram in making a led synced music cabinet the only difference is my leds are in parallel and the power supply is only 5v well when the bass hits and the leds go off i get some weird distortion in the music just wondering if any one knows what i did wrong

[najibg96]

what will be if i don't put an on/of switch

[musick_08]

if you dont put on an on/off switch then it will be always be on

[najibg96]

hello

[najibg96]

you are here??

[najibg96]

hello

[computer_guy]

I hope you know better than to touch the inside of the power supply..

[musick_08]

Yeah, its just common sense. all i did was take the top off of it for better cooling.

[Drasa]

Whoa dude you have some balls to do that! Anyways, nice tutorial, may try to do it in the future!

[musick_08]

Haha thanks

[Drasa]

You're welcome!

[computer_guy]

haha good, good.

[musick_08]

Thanks

[jasongroupindustries]

Hi, would like to know. I've not seen any resistor in the supply line of the led. you did not use any.

[musick_08]

I know, I just didn't have any spare laying around and didn't feel like buying any at the moment

[ertxz18]

Love your tutorial, however, can you please post a more specific diagram of the circuit, to be especific the audio jack and plug and those are supposed to be wired. Thanks!

[musick_08]

I will try to post one here soon, but they are wired in parallel. Idk if that helps much or not?

[ertxz18]

Thanks, it does help, since I didnt see a hot wire coming from the plug I was wondering what had happened to me. I thought maybe you meant in series but accidently wrote parallel or something since there was no hot. Thanks for the explanation, its working great now :D

[musick_08]

Lol yeah I should've made that more clear. But your welcome, glad to hear it's working :D

[Kruegem]

pics are pretty fuzzy

[musick_08]

yeah sorry about that, i had to take them with my phone

[junits15]

that isn't your main computer...........is it?

[musick_08]

haha yeah

[junits15]

looks kinda hard to use, but its still cool

[musick_08]

how does it look hard to use?

[junits15]

not entirely, but I like a computer at a desk....just my opinion though.

[musick_08]

oh ok

[wee_man]

Looks cool.  But where is the keyboard?  Or is it a keyboard less media station.

[musick_08]

 Well i have a keyboard i plug into the usb ports in the front, but i have the wii whiteboard on it so i dont really need a mouse or keyboard.  

[zack247]

i like your computer! i have been wanting to build my own for a while, other than wood or plexiglass, what is something good to build with?

[musick_08]

 Thanks! well you could use a lot of stuff. you could probably use metal, but i would look around and see what you have laying around or go to a hardware store and see what kind of materials you find.  my step dad is a carpenter so we had wood laying around in the garage that i used.

[zack247]

i was wondering because i have a intel motherboard with a pentium D, and i know that anything with a heatsink this large must generate some sort of heat. i saw once a sheet of 1/8" thick diffused light paneling, im thinking of trying that, especially considering it was only $14.99 for a large sheet