lee_man_tbu
New Member
Hey everyone
I was wondering if anyone has connected a PIC too a phone line and would have any schematics for the electronics involved in doing so. I know i have too protect the PIC from the High line voltages and such.
In my application, i need the PIC too dial a phone number, the people at the other end of the phone number answer and then the PIC too receive one DTMF singal and preform an opeation on that one signal. I will probably use the PWM built in the PIC for the DTMF codes and an MT8880 IC for decoding the DTMF signals, i just do not quite understand on how too connect the circuit together.
Also, i want too have a 2 way speaker connecting too the PIC side of this application so audio communications can occur.
Any help on this would be great
Thanks
I was wondering if anyone has connected a PIC too a phone line and would have any schematics for the electronics involved in doing so. I know i have too protect the PIC from the High line voltages and such.
In my application, i need the PIC too dial a phone number, the people at the other end of the phone number answer and then the PIC too receive one DTMF singal and preform an opeation on that one signal. I will probably use the PWM built in the PIC for the DTMF codes and an MT8880 IC for decoding the DTMF signals, i just do not quite understand on how too connect the circuit together.
Also, i want too have a 2 way speaker connecting too the PIC side of this application so audio communications can occur.
Any help on this would be great
Thanks