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  1. 28th April 2011 10:30 PM #1
    nisu123
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    Favorite 32 How to generate the sound of a certain frequency?

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    How to generate the sound of a certain frequency?

  2. 28th April 2011 10:32 PM #2
    reema4
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    Its not very difficult
    it actually very easy project.first try to make a so many square wave of different frequency with the help of micro controller.U can adjust the frequency by changing the delay time. Connect the port pins to speaker with the help of push buttons.if u generate 10 square waves u can hear 10 different sounds.

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