I am using this module:
http://www.seeedstudio.com/wiki/GPRS_Shield_V1.0
Everything works fine, i can send the values from sensors to my mobile phone.
The thing i cant make or think, is how to send values via SMS only when i make call to module.
So when i need measures just to un-call and get the SMS.
Thanks
Hi
Download my SIM800 module code referred to over here:
http://forum.arduino.cc/index.php?topic=359213.msg2476757#msg2476757
This application does not support phone calls but will receive ad hoc command requests by text message - it then sends the command response by text message.
You might find something useful in there.
Cheers
Catweazle NZ