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LED Pulse with music from Car Stereo

Discussion in 'LEDs and Optoelectronics' started by kevbo423, Jul 2, 2013.

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  1. kevbo423

    kevbo423

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    Jan 22, 2013
    Hey guys,

    I'm working on a project to put four, blue LED light strips in a car. I bought the strips already constructed, so they are good to go. They operate on 12 volts, standard car battery voltage. Where I'm having trouble is that I want the LEDs to pulse to the sound of the music. I'm not sure how to go about this. I originally thought that I would have the LED strips connected to the standard 12v with an added resistor, to give it a "base" brightness, and then use the power going to speakers as a voltage amplifier to make the strips pulse with the music. What I did not know, until a began looking more deeply into it, is that speakers operate with AC current, and not DC. Any help provided is much appreciated. Thanks!

    Kevin
     
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