Instructables
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The video of this Mod


READ ME FIRST!!!!!!!!!!!!!!!!!!!!!!
READ ME FIRST!!!!!!!!!!!!!!!!!!!!!!
READ ME FIRST!!!!!!!!!!!!!!!!!!!!!!
READ ME FIRST!!!!!!!!!!!!!!!!!!!!!!

3/1/10
I just reorder some new parts to fix some of the problems that i have. Please don't try to work on this till I am finish solving some of the issues (Unless you are a Level 10 Electrical Engineer.)

4/4/10
Well i figure out why this doesn't work as well. LED need a certain amount of milliamps to turn on. The current that comes out of the headphone jack is WAY TO LOW. It bearly turn on the leds (so you can only see it while it is dark and the volume is MAX OUT).

So i guess i would need to make a amp before the connecting it into the transistor.

Also if you want to use the microphone you will need a PRE-amp.

READ ME FIRST!!!!!!!!!!!!!!!!!!!!!!
READ ME FIRST!!!!!!!!!!!!!!!!!!!!!!
READ ME FIRST!!!!!!!!!!!!!!!!!!!!!!
READ ME FIRST!!!!!!!!!!!!!!!!!!!!!!

If you have a case window just like I do you sometimes wish you could turn off all those lights. I was like one those guys, but I added this other feature call the "RAVING MOD".

This mod will show explain how to make your LEDs to turn off and on with the sound of your music (or games or anything that comes out of your audio out). You will also learn how to COMPLETELY TURN OFF ALL YOUR LIGHTS.

Disclaimer 1: My Grammar is AWFUL. So if you can help clarify something please go ahead and tell me.

Disclaimer 2: I am not responsible for anything that happens to you or your computer. I am a ME not a EE.

Disclaimer 3: Never open your Power Supply. I needed Fans to mod so I did and I learn my lesson.

Disclaimer 4:Before I continue I just want to say that the circuit for this instrubable did not just came to me one day. A fellow student in my school gave me the idea that a NPN Transistor will make the lights turn On and Off.

Materials
Computer Fan (Any size or type and no Leds are needed)
26 gauge wire (Black and some other color)
18 gauge wire (Black and some other color)
Zip Tie
Male and Female 4-pin molex
Male and Female pin molex
NPN transistor
Female Audio connector
2x Two way or 1x Three way switch
Audio Splitter
Male to Male 3.5mm audio cable
Or Microphone with 3.5mm male cable (needs Mic Preamp)

Tools
Wire Cutters
Wire Strippers
Small Standard Screwdriver or something similar
Glue Gun and Glue Sticks
Electric Tape
Soldering Iron and Solder
Brainz
 
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Just ran across this Structable. Great job and great Stuctable. For me, I use my audio out, so I need to use a sound controller. For and easy way to do this check out my Structable at http://www.instructables.com/id/Lighted-Fan-Light-Switch/ This can easily be connected to a sound controller.

kyismaster4 years ago
The song is Streamline by Newton http://www.youtube.com/watch?v=BugFniXE1rc
the page has been removed because of author rights... sucks!
kingofdon4 years ago
that so awesome..can i use other transistor than TIP31C
you can use a mosfet
fuzychiapet4 years ago
"Please don't try to work on this till I am finish solving some of the issues (Unless you are a Level 10 Electrical Engineer.)"

My Warcraft character is a level 30 engineer- does this count?
No, unfortunately, time wasted playing video games on a computer cannot be transferred for credit towards an electrical engineering degree. Sorry.
But it's Warcraft Man.
yeah, nice excuse
Well, if you're an electrical engineer or an experienced hobbyist, give it a shot
zack2474 years ago
yuo might want to clean out the blue fan... its really dusty. cool 'ible though! 5*s
DustySeven74 years ago
I have worked on computers for a while now. The red wire on a molex cable is 5v power the yellow cable is the 12v line.
junits154 years ago
it seems the tip31 is a favorite for music controlled lights
Aztof4 years ago
;P
:)
;}
^_^
!_!

nuff said 
d(^o^)b

nuff said =)
Aztof Aztof4 years ago
oh, what's the name of the song in the video?  I would love to put it on my iPod
dkfa5 years ago
maybe you could make the leds glow and fade....like its breathing! Now you can call your PC a MONSTER rig.
you can do that, just get a capacitor in parallel with the LED
that wont pulse them, it will fade them off, (not sure if it will fade them on).
if you put a resistor in series
i want to do that! im in welding so i am makeing a steel metal case with the monster energy symbol on it, green LED's was the plan but with the breathing thing wuld make it sweet! 
Holden_vy_s4 years ago
As a person who uses his computer rather than looking at it, i feel the need to say RICER.

But thats just me.
jobergy4 years ago
wow that is pretty simple when it comes down to it, cool thanks! will use indeed!  and for my lights in my truck for my audio system! cant use the audio in but i can make the mic thing work im sure 
Siabnec4 years ago


Just Awesome
your dog4 years ago
this instructable makes me extremely jealous
 
akjian5 years ago
do you have msn ? . i got question to ask you ..
olie8545 years ago
every one I am very sorry i have seen an easier way to every ones solution, the schematic is wrong do not use it it can be fixed which i will show you how to make it correctly for know just follow his second drawing of the layout of the wires and parts its messy but it is correctly drawn. below is the correct schematic i have updated two wires cross they ARE NOT CONNECTED, the rest are connected.
F6QW9GVFH5HJYGA.MEDIUM.jpg
masonat olie8545 years ago
Where is the sound input?
itstemo1 (author)  masonat5 years ago
Do you see the purple lines. The G is for the ground and the squigilly line if for the L and R of the sound
thats cool. by the way, whats the name of the song?
streemline by newton
thanks, have you made this circuit? did it work?
ok...from what i gather from this image...i connect the NPN/audio part and the ground to the same prongof the second switch, correct? i then connect the "on only" cable to the other prong? makes sense, i guess...just confirm this for me...
also what gauge of wire to i use for the circuit?
ok...also...do i use the right and left of the audio or do i use one and the power?
what I recommend is use left and right audio together and connect the gnd from audio to the emitter of the npn transistor, gauge wire does not really matter i would use smaller than 20 gauge, also you first comment i do not under stand fully the first switch is the main on of , and the second switch overrides the audio amplifier to full on 12volts, reply back with a more in depth question as i don't understand what your getting at, but i do think you are correct no I've a second look at it.
i think i figured it out...but im still confused about the audio...for my setup im using a headphone cable...it has three wires inside...a red, a white, and a blue...guys from radioshack said that red and white were right and left, and the blue must be ground...where do i connect these?
itstemo1 (author)  Mighty Mackinac5 years ago
Okay... Red and White are going to be connected to the Base on the NPN transistor. The ground is going to the ground of the power.
alright...got that...

now...i have a question about one of my switches... it has three prongs, all labeled: Power, ACC, and Ground...this is going to be the first switch...which prongs do i connect the power to? btw...i got all of my supplies from radioshack if that helps...this is the switch...
http://www.radioshack.com/product/index.jsp?productId=3098835&numProdsPerPage=60&retainProdsInSession=1&y=13&x=10
ACC is just a led in the switch, power and ground is the only thing u need. It doesnt matter which end up you plug it in as long as you dont mix the red and black wires together
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