#include<string.h>

#include<reg51.h>

unsigned char x=0,i,g[20];

unsigned char s1[9]="AT\r\n";  //send "AT" command modem will response

unsigned char s2[18]="AT+CIPMODE=0\r\n";//Select TCPIP Application mode

unsigned char s3[30]="AT+CLPORT=\"UDP\",\"3500\"\r\n"; //set Local Port

unsigned char s4[45]="AT+CIPCSGP=1,\"airtelgprs.com\"\r\n";//set csd or GPRS for Connection mode "ur GPRS provide address"

unsigned char s5[15]="AT+CSTT\r";//Start Task and set apn

unsigned char s6[15]="AT+CIICR\r";//Bring up wireless connection with GPRS or CSD

unsigned char s7[15]="AT+CIFSR\r"; // Get Local Ip Address "is assign for GPRS Modem"

code unsigned char s8[50]="AT+CIPSTART=\"UDP\",\"219.64.118.125\",\"3500\"\r\n";  // Start Up TCP or Udp Connection

unsigned char s9[15]="AT+CIPSEND\r\n"; //Send Datat Through TCP or UDP Connection

unsigned char sd[46]="193308950\r\n"; // This is the Example Data Send through GPRS Modem

void call(unsigned char *z)

{

while(z[x]!='\0')

{

SBUF=z[x];

while(TI==0);

TI=0;

x++;

}

}

void send(unsigned char a)

{

SBUF=a;

while(TI==0);

TI=0;

}

void delay(unsigned int t)

{

unsigned int x1,y1;

for(x1=0;x1&lt;t;x1++)

for(y1=0;y1&lt;498;y1++);

}

void baud_rate_init()

{

TMOD=0x20;// Use Timer 1 8-bit Auto Reload mode

TH1=0xfd; //Baud Rate 9600

SCON=0X50;// 8 bit,1 stop bit

TR1=1;   // Start Timer 1 for Serial communication

}

void main()

{

baud_rate_init();

while(1)

{

x=0;

call(s1);

send(0x0d);

delay(1000);

x=0;

call(s2);

send(0x0d);

delay(2000);

x=0;

call(s3);

send(0x0d);

delay(3000);

x=0;

call(s4);

send(0x0d);

delay(5000);

x=0;

call(s5);

send(0x0d);

delay(6000);

x=0;

call(s6);

send(0x0d);

delay(10000);

delay(10000);

x=0;

call(s7);

send(0x0d);

delay(10000);

delay(10000);

x=0;

call(s8);

send(0x0d);

x=0;

call(s9);

send(0x0d);

x=0;

call(sd);

send(0x1a);

delay(1000);

} }

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