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SMS based switch controller through 16f877A

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alintha

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Hello guys,

as usually i'm stucked in my project again. ;) So definitily in need of your help. :)

I'm doing a project regarding control switches through sms messaging. I found some circuit diagrams to connect AT supported mobile to the PIC 16f877a. but i have no idea how to write codes to program the pic to access the message memory and decode them. :(((( simply, how to insert AT commands to the SC. (so far i was using PIC BASIC pro to program ICs. But it seems now onwards i will have to use C.)

Thanks for viewing :)
 

AT Comands are sent through serial UART, so u have to learn the AT comands <

The mObile or gsm, module would be connected through Rx Tx and u have to send ur comands as u would send any string from the Microcontroller,

For example if you send the AT comand AT+CMGR=1\r in most of modules to read the message that is stored at location 1; so u can send this comand in code as
Code: 
UART_send_string("AT+CMGR=1\r");


---------- Post added at 07:46 ---------- Previous post was at 07:43 ----------

Hope the Links to the App notes in the following post would help you understand .http://teeblog.blog.com/archives/888/
 
Thanks a lot sherazi. :) still have some problems. when i type UART in mikro C it says undeclared identifier. So, is there any other way of sending UART pattern signals in Mikro C?
 

well i just showed a function for uart transmit

u should initailize the uart port and then use the function that is there instead of uart_send _string()

I hope u have used Serial communication before!
 

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