Originally posted by samertop
hi every one,
i am new in electronic field,
i hope any one help me for gsm connection,
i want use this method for secure alaret ,
thank you for reading.
best regardes
Hi,

you need a pic-controller a gsm-modem, like MC35i Terminal (Siemens) or similar or a mobile phone, and max232- IC or similar to connect this both together. The pic and the mobile phone communicate over a serial- connection. You need minimum the write- read- and ground- wire. If you want to use SMS to do the secure alarm you have to send AT-Commands from the pic to the gsm- modem.

Regards,

Tomas