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Author Topic: feasability?  (Read 1616 times)
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nr Bundaberg, Australia
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would the idea of the dtmf chip to be to make it transmit certain tones and the other end decode them ? and then use the arduino to act accordingly ?

That's what we used to do (in the 80s though so don't expect me to remember too much), if you can still get the chips there's no reason it shouldn't work now.

EDIT: Have a look at this,dtmf%20decoder%20%28application%20notes%29.pdf,dtmf%20decoder.pdf

I don't know anything about this chip but it should give you the idea.


Rob Gray aka the GRAYnomad

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