AW: [En-Nut-Discussion] Send SMS via GSM modem or mobile phone

[Ernst Stippl]

Hi Thorten!

You will find valuable Information at:

http://www.embedtronics.com/nokia/fbus.html

and I attach an explanation of the Nokia FBUS seral protocol which I found
somewhere on the web, too (I hope I dont clog any milboxes doing this).

One (very basic) issue is that the Nokia data cable (DB 9 RS232 serial to
Nokia FBUS) contains some electronics to shift the voltage between TTL
(phone) and RS232(serial I/F) level. Therefore, the RS232 RTS and DTR must
be at high/low level to allow the voltage level shifter circuitry to work by
providing +12v and -12V to it! Ethernut only provides one RS232 signal in
addition to TXD on the DB9, so you will need to do some HW fiddling here).

regards
Ernst  

-----Ursprüngliche Nachricht-----
Von: en-nut-discussion-bounces at egnite.de
[mailto:en-nut-discussion-bounces at egnite.de] Im Auftrag von Hugo Simon
Gesendet: Freitag, 09. September 2005 21:18
An: Ethernut User Chat (English)
Betreff: [En-Nut-Discussion] Send SMS via GSM modem or mobile phone

Hi,

did anyone managed to send an SMS via serial port and GSM modem or phone
from Ethernut.
I looked at Linux' gsmlib, but it's C++ an I am not familiar with that. I
want to use a Nokia 6310i, but it would be good to use others also.

Thank you.
Thorsten


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