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I'm able to send AT commands to GSM modem,
but i am not able interface my 8051 to GSM model.
can i get sample inerfacing code for 8051 micro controller.
"I would like to know the interfacing part b/w GSM modem and Micro controllers"
As stated here many times already, the modem neither knows nor cares what is connected to its serial port. It makes no difference to the modem whether it is connected to a microcontroller, a terminal, a PC, or anything. All the modem knows is that it needs to receive AT commands as described in its Manual, and then it will react as described in its Manual.
So, obviously, the first thing you need to do is to read the modem's Manual!
Similarly, as far as the microcontroller is concerned, this is simply a matter of sending and receiving serial data.
All this has been discussed plenty of times here already - so follow the links already given in this thread, and do a search for "GSM Modem"
Thanks Andy,
I need a startup and I can take it from here.
Cheers,
Venu.
I already intefaced a 8051 with a Sony Ericsson T126. I can send and receive information from/to both devices. I tooks around 3 months to figure and realize out all about the connection. I also interfaced the 8051 with an Ethernet controller to conect It to Internet. In other words, It is possible to connect the old MCS-51 with the real world but It costs time, money and tons of errors.