Tsvetan Usunov email (remove spam text)
> 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.
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)
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics
See also: www.piclist.com/techref/pots/dtmf.htm?key=dtmf
You must be a member of the
piclist mailing list
(not only a www.piclist.com member) to post to the