On 10 Sep 97 at 10:31, Pierce Nichols wrote:

> On Tue, 9 Sep 1997, Alex Melven wrote:
>
> >  Hello all!
> >
> >  There is so much examples of DTMF encoding! Could enybody give me an
> > example of DTMF decoding. I need it very much. I will decode it using
> > ADC of 16c73.
>
>         Well, it's just a pair of tones, so you should just be able
>         to do
> a FFT to get those tones out of the incoming signal.
>

Somewhat difficult on the average PIC, these FFT's!
MikeS
<mikesmith_oz@nosp*m.relaymail.net>
(remove the you know what before replying)