GSM WITH PIC

[k.n.sreekumar]

hai,

    i am new to pic. i want to interface a gsm modem with pic16f877 for sms sending application for that i write the code.but the serial terminal working properly [through proteus] but i didnt get the message pls help me to solve the problem. the code is

 

#include<16f877A.h>
#use delay(clock=20000000)
#fuses HS,NOWDT,NOPROTECT,NOLVP,PUT,NOBROWNOUT
#use rs232(baud=9600, xmit=PIN_C6,rcv=PIN_c7)
int i,j;
void at_cmds();

void main()
    {
    for(j=0;j<=5;j++)
        {
        delay_ms(500);
        }
    for(i=0;i<=5;i++)
        {
        delay_ms(2000);
        at_cmds();
        printf(“this is the %x th message”,i);
        putchar(0X1A);
        printf(“nr”);
        delay_ms(1500);        
        printf(“n”);
        }
    while(1);    
    }

void at_cmds()
    {
    printf(“nATnr”);
    delay_ms(1000);
    printf(“AT+CMGF=1”);
    delay_ms(1000);
    printf(“rAT+CMGS=”9842584477″n”);
    delay_ms(1000);
    }

[Luis Morquecho]

If I were you I will use Hyperterminal to check all.

First connecting Hyperterminal to the GSM and making it works by hand.

Second connecting Hyperterminal to the PIC and seeing if I receive the correct commands.

If all it´s OK then connect PIC to the GSM

[Author]

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