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PICList Thread
'PIC to cellular phone'
1996\09\16@140914 by Luis Fernandez

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Hi Antti,

>you are not the only one who wants to use GSM networks.
>Nokia has interface cable for RS232 to mobile phone, its plain level
>converter, I have the scematics.
>
>a interface for PIC to Nokia is simple one pin connected to the
>the connector below the phone.
>You should be able to send SMS, so a modem may not be needed at all.

The only thing I've seen doing this is the Psion organizer. They have a
software to send SMS using a Nokia 2110 with a simple cable and no PCMCIA
required. May be they have arranged something with Nokia or they have a
reliable information on the phone bus protocol.

>Unfortunatle I dont (and no-one seems to have) specs for the Nokia
>bus, it would allow to bypass all, expensive things.

This is the problem. The Nokia bus (called X100 bus ?) seems to be part of
the X-Files and there is no public info available (anyone knows more ?)

>PCMCIA info can be found, but all the work required would be pretty huge,
>so unless you are going to market a good product, it might be to costy.

That's for sure. An alternative solution would be to use simple AFSK modem
and do the data exchange using the audio lines at low baudrates (1200/2400).
This scheme can work for short data but you loose all the control over the
phone such as dialing, etc

>good luck anyway

Thank you


Luis Fernandez Cormenzana
RadioBit Sistemas, S.L.

Fax/Tel:+34-6-585 64 57
e-mail: spam_OUTradiobitTakeThisOuTspamdragonet.es

1996\09\18@180454 by hoss karoly

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Luis Fernandez wrote:
>
> Hi Antti,
>
> >you are not the only one who wants to use GSM networks.
> >Nokia has interface cable for RS232 to mobile phone, its plain level
> >converter, I have the scematics.
> >
where can I see the schematic ?
is it on the web ?
or would you be so kind to send it to me by e-mail
bye
charley
.....timothyKILLspamspam@spam@bekes.hungary.net


'PIC to cellular phone'
1996\10\02@020427 by Ing. Pablo Otero
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At 03:01 PM 9/16/96 +0200, you wrote:
Luis:
       If you got this schematic, please point me where or send it to me
please via e-mail im very interested.

       Thanks in advance.

Pablo.
Mexico
BTW where are you from?

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1996\10\02@063652 by Luis Fernandez

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>At 03:01 PM 9/16/96 +0200, you wrote:
>Luis:
>        If you got this schematic, please point me where or send it to me
>please via e-mail im very interested.
>
>        Thanks in advance.
>


Hola Pablo,

For those requesting more info (schematic) for the Nokia RS232 interface
cable please note that the comment was made by:

>antti
>
>------------------------------------------------------
>-- Silicon Studio Ltd.                              --
>-- EraseMEinfospam_OUTspamTakeThisOuTsistudio.com http://www.sistudio.com --
>------------------------------------------------------

Try to email antti directly asking for the schematics. I have no such info :(

>Pablo.
>Mexico
>BTW where are you from?

I'm located in Benidorm, South East coast of Spain. A well known touristic
place in the mediterranean sea. Even with some *martians* programming micros ;)

Saludos







Luis Fernandez Cormenzana
RadioBit Sistemas, S.L.

Fax/Tel:+34-6-585 64 57
e-mail: radiobitspamspam_OUTdragonet.es

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