hello guys i am facing a problem in sending sms…..
my developed code is here…plz check it out..
thanxx in advance…!!!!
#include<reg52.h>
#define lcd_data P2
#define lcd_cont() ((lcd_en=1),(delay(3)),(lcd_en=0))
void UART_init();
void send_to_modem(char*);
void enter();
void send(char);
void ch_send_to_modem(char*);
void lcd_init(void);
void lcdcmd(unsigned char value);
void lcddata(unsigned char value);
void msgdisplay(unsigned char b[]);
void delay(unsigned int value);
void send_to_modem(char*);
void enter();
void send(char);
void ch_send_to_modem(char*);
unsigned char str[10],mobilenum[11]={“09887081656”};
unsigned char mobilenum1[10];
code unsigned char str1[]={“OK”};
unsigned char l,s,n,a,b,i,count,j,jjj,hb=68;
sbit temp=P1^3;
sbit lcd_rs = P1^0;
sbit lcd_en = P1^2;
void main()
{
temp=1;
lcd_init();
UART_init();
lcdcmd(0x84);
msgdisplay(” welcome ” );
delay(1000);
lcdcmd(0x01);
msgdisplay(“searching for”);
lcdcmd(0xc0);
msgdisplay(“GSM modem”);
delay(100);
send_to_modem(“ate0”); //to avoid echo signals,
enter();
send_to_modem(“at”);
enter(); // TO CHECKING GSM MODEM…
send_to_modem(“at”);
enter();
send_to_modem(“at”);
enter();
send_to_modem(“at”);
enter();
send_to_modem(“atr”);
enter();
for(mobilenum=0;mobilenum<11;i++);
for(s=0;s<5;s++) // Here we are waiting for data whitch is sending by GSM modem
{ // to checking wether the GSM modem connected to system or
while(RI==0); // not.
str=SBUF;
RI=0;
}
/* str=’ ’;
lcdcmd(0x01);
msgdisplay1(str);
long_delay();
n=strcmp(str3,str1);
if(n)
goto again; // GSM modem if those are matching then following messages
else
{*/ // are displaying on LCD.
lcdcmd(0x01);
msgdisplay(“SYSTEM”);
lcdcmd(0xc3);
msgdisplay(“CONNECTED”);
// }
send_to_modem(“at+cmgf=1”);
enter();
send_to_modem(“at+cmgd=1”);
enter();
send_to_modem(“at+cmgd=2”);
enter();
send_to_modem(“at+cmgd=3”);
enter();
send_to_modem(“at+cfcs=”);
enter();
send_to_modem(“gsm”);
enter();
RI=0;
lcdcmd(0x01);
msgdisplay(mobilenum);
st:delay(2500);
while(RI==1)
{
RI=0;
delay(100);
}
lcdcmd(0x01);
msgdisplay(“massage “);
lcdcmd(0xc0);
msgdisplay(“start……”);
while(RI==1);
while(1)
{
if(temp==0)
{
resend:
lcdcmd(0x01);
msgdisplay(“over temp”);
lcdcmd(0xc3);
msgdisplay(“sending msg”);
send_to_modem(“at+cmgs=+918233598587”);
lcdcmd(0x01);
msgdisplay(“No. sended”);
lcdcmd(0xc0);
msgdisplay(“sending msg….”);
delay(10);
enter();
send_to_modem(“abnormal temerature from room1 “);
ch_send_to_modem(0x1a);
enter();
while(RI==0);
a=SBUF;
RI=0;
while(RI==0);
b=SBUF;
RI=0;
if(a==13)
{
lcdcmd(0x01);
msgdisplay(“message sent “);
goto st;
}
else
{
delay(2000);
goto resend;
}
}
}
}
void lcd_init(void)
{
lcdcmd(0x02);
lcdcmd(0x02);
lcdcmd(0x02);
lcdcmd(0x28);
lcdcmd(0x28);
lcdcmd(0x28);
lcdcmd(0x0c);
lcdcmd(0x06);
lcdcmd(0x01);
}
void lcdcmd(unsigned char value) // LCD COMMAND
{
lcd_data=value&(0xf0);
lcd_rs=0;
lcd_cont();
lcd_data=((value<<4)&(0xf0));
lcd_rs=0;
lcd_cont();
}
void lcddata(unsigned char value)
{
lcd_data=value&(0xf0);
lcd_rs=1;
lcd_cont();
delay(3);
lcd_data=((value<<4)&(0xf0));
lcd_rs=1;
lcd_cont();
delay(3);
}
void msgdisplay(unsigned char b[])
{
unsigned char s,count=0;
for(s=0;b!=’ ’;s++)
{
lcddata(b);
}
}
void delay(unsigned int value)
{
unsigned int x,y;
for(x=0;x<100;x++)
for(y=0;y<value;y++);
}
void UART_init()
{
SCON = 0x50;
TMOD = 0x20;
TH1 = 0xFD;
TR1 = 1;
}
void send_to_modem(char*s)
{
while(*s != ‘ ’)
{
send(*s);
s++;
}
}
void ch_send_to_modem(char*s)
{
while(*s != ‘ ’)
{
send(*s);
s++;
}
send(‘r’);
send(‘n’);
}
void send(char x)
{
while(!TI);
TI = 0;
SBUF=x;
}
void enter()
{
send(‘r’);
send(‘n’);
}