See Elektor Electronics October 2001 for a 'RS232 Data Spy'.
www.elektor-electronics.co.uk
Cristian


At 10/31/2001, you wrote:
>Well when I plug my 5110 into my PC it talks RS232 to it down the data
>cable, it's just a question of getting the right magic codes that the phone
>understands (the Nokia equivalent of the AT command set I guess). Is there
>any way of recording a 'conversation' off a RS232 line between two devices ?
>I could plug a terminal to my PC and see what it tries to send as I ask
>Nokia Datasuite to send an SMS via the phone .. that would be a start
>wouldn't it ?
>
>I'm interested because I'm making a multi-use trip computer for my car which
>has RS232 for other things (PC connection, input from GPS) and it could be
>utilised to link to the alarm circuits and have a spare phone hidden which
>could place a call to my own phone when it's being broken into ..
>
>Cheers, Simon.
>
> > -----Original Message-----
> > From: Peter May [mailto:manager@SALE-NET.COM.AU]
> > Sent: 31 October 2001 19:50
> > To: PICLIST@MITVMA.MIT.EDU
> > Subject: Re: [EE]: A cable for SMS phones etc
> >
> >
> > Thanks for the info. I wish to point out I am not trying to
> > use the phone a
> > sa modem. Simply to sens and recieve SMS messages. Thats it.
> > No data....
> >
> > Regards, Peter.
> >
> > -----Original Message-----
> > From: dr. Imre Bartfai [mailto:root@PROF.PMMF.HU]
> > Sent: Wednesday, October 31, 2001 20:34
> > To: PICLIST@MITVMA.MIT.EDU
> > Subject: Re: [EE]: A cable for SMS phones etc
> >
> >
> > I changed the subject tag. As your question, I have bad news for
> > you. AFAIK Nokie does it the dirtiest way: they hide the
> > communication on
> > the physical layer completely so there is no chance to tell
> > with the phone
> > using the PIC. U will recognize it so as Nokia s/w install a
> > fake serial
> > port on the Windoze PC which virtually does not exist (COM3 or so). I
> > heard there is a Linux project willing to do the same emulation, but I
> > have no further information at this time.
> >
> > I had the same problem and ceased Nokia. I will try Siemens as they
> > promise they provide a true Hayes modem in their phones for the
> > user. Maybe I will get a cable on the weekend and I will report of it.
> >
> > Regards,
> > Imre
> >
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> >
> > On Tue, 30 Oct 2001, Peter May wrote:
> >
> > > I have been reading this list and surfing the web for some info on
> > > controlling a GSM phone from a pic. So far I have managed
> > to find various
> > > links etc on various cables. I have even went and bought a
> > commersial
> > cable
> > > that seems to work with my phone with various bits of
> > software but I am
> > > unable to get it to work with a terminal package. the reason for the
> > > terminal package is if I can do this with AT commands I
> > should be able to
> > > get it to do it using a serial port on a PIC with basically the same
> > > commands. I realise there is another format of talking to
> > the phone but my
> > > research (and I would love to be corrected on this) has
> > shown that you can
> > > apparently use simple AT commands.
> > >
> > > For the record I am using a Nokia 5110 as my test phone
> > >
> > > Hence:
> > >
> > > I have found a couple of sites with home made data cables
> > etc and have
> > > intentions of building one using a MAx3232 chip. I was
> > wondering if some
> > of
> > > you would like to provide a link with a build it yourself
> > data-cable type
> > > web page that you have used to build a succesful design....
> > >
> > > And I am confused as to the format of communications to the
> > phone. Is it 7
> > > or 8 bit at 9600 or what?
> > >
> > > I would love to hear from anyone (on or off the list) about
> > any of the
> > above
> > > of if you can offer any further links or info.
> > >
> > > Warmest regards, Peter
> > >
> > > --
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> > >
> > >
> > >
> >
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