DTMF receiver

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  1. - 31st May 2008, 00:22 #6
    mister_e's Avatar
    mister_e
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    AN257...
    DTMF Detection Using PIC18 Microcontrollers
    http://www.microchip.com/stellent/id...pnote=en024294

    Which use some kind of FFT.
    Last edited by mister_e; - 31st May 2008 at 00:26.
    Steve

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