piclist 2001\10\10\031614a >
Thread: Receive DTMF
face BY : Tsvetan Usunov email (remove spam text)

>Hello all,
>        I need to make a computer receive DTMF numbers.  I can do it using
>modem (or other card in the PC) and software, or I could make a hardware
>that decodes DTMF into ASCII and sends it in the serial port.  Is either
>of these available already so I don't have to invent it?  Which would be
>easier / cheaper?
>Any input or thoughts appreciated.

We have this done with MT3271 serial DTMF decoder and PIC12C508.
http://www.olimex.com/kits check for PH002 DTMF-to-RS232 converter.

Best regards
PCB prototypes for $26 at http://run.to/pcb (http://www.olimex.com/pcb)
Development boards for PIC, AVR and MSP430  (http://www.olimex.com/dev)

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