You can use HT9170B or MT8870 as DTMF decoder IC with 8051.
"I did before, but I don't now."
Great answer, :).
and spot on as well.
"You do realise that ready-made ICs are available to decode DTMF, don't you?"
I did before, but I don't now.
You do realise that ready-made ICs are available to decode DTMF, don't you?
Anybody know what decoder IC can be used with the 8051?
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