8870/dtmf + Pic?

[PIC_hobbyist]

Does anyone know how to read the DTMF signals into a PIC 16F84? And how to connect the output binary lines to the input of the PIC?

Basically I want to be able to connect a phone to a 8870 DTMF decoder and have it so that if I enter a certain code (ex...*123#) on the telephone than the 8870 will decode it, and spit out the binary values to the PIC. Once the PIC receives the values I can have it scan the inputs, if the code is correct (*123#) than I can make the outputs do somehing...

Any assistance or example would be greatly appreciated!

[picstudent]

i think i can help you, but bye the other side i need the input circuitry (microphone adaptation), 'cause i was worki' this on proteus (good sims).
I'll sent you my proteus files soon.
best regards

mail me!!

[RodrigoElias]

hi, i need help for identical problem.
i need use same code, example *123 to active any oupt in pic 16f628a witch 8870 decoder.
Thanks