Easiest Way to Sync LED's With Music




Introduction: Easiest Way to Sync LED's With Music

     Don't know what a transistor is? Don't know how to code an Arduino? Don't worry! This instructable will show you how to tie LED fixtures to flash with the beat of your music. A few things to point out is that, based on this setup the lights will flash mostly to the bass line of the music. Is this the best way to go about flashing lights with music? No, it's relatively crude but it has lasted me a full year of use and only costed $40. 

     You will need:

-LED fixture from this link (and found at any autozone)

-Wire strippers

-Electrical tape (or shrink wrap tubing)

-A bass speaker you want to have the lights react with

Step 1: Buy the LED's

Like I said they can be found at autozone and look like this:

I haven't tried this with other LED's from autozone, but they should work because all of them are supposed to be regulated from a 12V DC source (aka a car battery)

Step 2: Attach LED's

Literally all you have to do is put the two wires coming out of the LED into the two speaker terminals on a speaker. Strip the plastic off of the wire with the wire strippers so you can twist it with the speaker wire. You'll notice that the LED illuminates with each music beat. The louder the song, the brighter the LED. I had said earlier that my setup had lasted me 1 year. This is because I played my music loud constantly in my car and this eventually burned out several LED fixtures. 

NOTE: The Speaker terminal in the picture shows only the speaker wire, not the LED wire running to it

Step 3: Project Time


These can be used with just about any bass speaker. Here are a couple project I've made with them.
Check out what they look like at a low volume:

(sorry about the quality)



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    9 Discussions

    Ok. So i have a speaker setup of a 35watt and 5watt. Do i connect to the 35watt

    right you are sir that is definitely the easiest way. and i have already tried that it worked for a minute and then the leds were fried. Im not to upset it was just some cheap 5 dollar ones from oriellys I dont want to ruin my 30 dollar ones from autozone all i want to know is did they not last because they were cheap or does it have something to do with my setup i am running a 1500 w with 2 12" subs. and on a side note if you hook up a led light to the wires behind the head unit you can get the pulses from higher notes. give it a try you wont be disappointed

    Video of my Working Prototypes! i maked 4 DIFFERENT WAYS!

    The bass tones tend to use more power so the LED's can feed off the bass power better than with mid and high tones. That's my understanding at least. I'm sure with an amp or some way to increase the power the LED's receive from the mids and highs you could make it work but that would be a bit more complicated and expensive than this setup.. I think.

    how about syncing the mids and highs?

    moss dhoss there's a esay fix to that all u have to do is get tow set's of speaker and a spittler.all u do is do the hack on one of the sets but u take out the speaker's from that set so u can have the volume really loud but no music will be playing out of that set of course but then u plug the other set into the spittler and have your music playing out of that set (:

    visit the following webisite to learn how to make different frequencies "blink" ecelab .com / circuit-butterworth-hp. htm

    Yes, it is amazing that sync LED to music is that simple.

    The problem most often encountered is the volume. The LEDs will not "dance" without the volume be up loud. Loud being determined by what disrupts ones neighbors peace and quiet enjoyment of their "home space".

    This is AWESOME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!A!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!