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USING GSM-SHIELD IN SCANDINAVIA?
I am relatively new to Arduino and does not have deep technical understanding of GSM either.  Now I am planning a small Arduino project which imply sending a few SMS messages. The simplest approach seems to be to use Gsm shield. Does anybody have  practical experience with using a GSM shield here in Scandinavia? If so, what type of GSM shield was used, and was it difficult to make it work?

I have an old SE P900 which I considered to use, but according to SE it does not have AT-commands for sending SMS, hence I have given up that approach.
(  http://s95417013.onlinehome.us/ktekx/gps%20cell%20tracker/atcommands/dg_at_p800_p900_r1a.pdf  )

Any comment would be very welcome.

Svar gjerne på dansk/svensk/norsk.
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Jeg fikk et Quad-band GPRS/GSM Shield for Arduino (http://www.cutedigi.com/product_info.php?cPath=284&products_id=4424&osCsid=8e05b384dd270e6108dd93f3631cb1c4) med en antenne av en bekjent i USA, og det fungerer utmerket i Norge.

Det virker helt greit med NewSoftSerial eller en hardware Serial på en Mega. Det eneste du må passe på er at det kommer satt opp med 115200baud som standard hastighet, og den hastigheten støttes ikke av NewSoftSerial. Jeg kan forklare nærmere hva som må gjøres hvis det er behov.

/Henning
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Have you see the our gsm shield?
Please visit the web site, you can find also the library.
http://www.open-electronics.org/arduino-gsm-shield/
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Jag har kört lite med Sparkfuns Cellular Shield och den har fungerat mycket bra här i Sverige. Lätt att komma igång med.

Enda problemet var att jag först använde ett sim-kort med pin-kod så jag fick inte modulen att starta upp som den skulle. När jag väl kom på det så var det inga problem.
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Takk for nyttig informasjon!
I første omgang forsøkte jeg å bruke en gammel SonyEricsson K700i mobilt. Oppskriften til HULK
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1290601471/all
var et meget godt utgangspunkt, det fungerer fint. Mobilen har egen klokke som jeg benytter meg av.

Det synes som om GSM shield gir større fleksibilitet og gir en ryddigere løsning. Jeg kommer nok til å
bruke det senere.
 smiley Jorolv
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Thanks for all your answers and this topic. just what i needed.

This is a pretty stupid question but i need to get it answered. is it possible for a normal human being to find his gsm/gprs module? like coordinates or do i need to buy me an gps module and hook it up with my gsm/gprs module for coordinates and internet functionality.

I know that it-forensics can track mobile phones. because they can measure the signal strength between 3 connected antennas. and i guess i could do the same but how can i know where those connected antennas are? and i guess i don't have permission to do this or do i? Maybe im not even able to do it?? : )

I guess i need to invest in one gsm/gprs module and one gps module. It most be easier and i know it works. I just don't want to spend a lot of money if it is possible to track down my gsm/gprs module without gps.
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