prabin20
Junior Member level 1
hi guys i m doing a project in which i have to send sms.but i couldnot able to send sms . i also wanted to display the modem responses on lcd. please upload program any who has already done this kind of project.....:-?
Code:
#include<at89x52.h>
#define lcd_data_pin P2
sbit BUSY=P2^7;
sbit rs=P1^0;
sbit rw=P1^1;
sbit en=P1^2;
sbit l=P1^3;
void USART_Send(unsigned char *data2send);
void Delay(unsigned int msec);
void LCD_Init();
void LCD_Cmd(unsigned char comm,unsigned char Mode);
void LCD_Data(unsigned char disp);
void LCD_String(unsigned char *disp);
void Send_SMS(unsigned char *msg);
void Send_SMS2(unsigned char *msg);
void Get_IMEI();
void Make_Call(unsigned char *number);
unsigned char data2rcv[40];
unsigned int idx = 0;
unsigned char a = 0, i = 0, z = 0, j = 0;
unsigned char *num = "+919xxxxxxxxx";
unsigned char *dummy, *data2send = "Hello!";
unsigned char chr;
void main()
{
P0 = 0x00; //not used
P1 = 0x00; //Used for Appliances
P2 = 0x00; //not used
P3 = 0x03; //used for serial
TMOD = 0x20;
SCON = 0x50;
TH1 = 0xFD;
TR1 = 1;
EA = 1;
ES = 1;
l=0;
LCD_Init();
Delay(20);
LCD_Cmd(0x01,0);
LCD_Cmd(0x84,0);
LCD_String("WELCOME");
Delay(50);
LCD_Cmd(0xC4,0);
LCD_String(" USER ");
Delay(90);
dummy = &data2rcv;
if(l==1) {
//USART_Send("8051");
Delay(100);
Send_SMS("Hello! Prabin");
}
}
void serial_ISR (void) interrupt 4
{
if(RI==1)
{
data2rcv[idx] = SBUF;
RI = 0;
LCD_Data(data2rcv[idx]);
}
}
void Delay(unsigned int msec)
{
int i,j;
for(i=0;i<msec;i++)
for(j=0;j<1275;j++);
}
//LCD Functions
void LCD_Cmd(unsigned char comm,unsigned char Mode)
{
lcd_data_pin=comm;
en=1;
rs=Mode;
rw=0;
Delay(1);
en=0;
}
void LCD_Data(unsigned char disp)
{
lcd_data_pin=disp;
en=1;
rs=1;
rw=0;
Delay(1);
en=0;
}
void LCD_String(unsigned char *disp)
{
unsigned int cnt = 0;
while(*disp)
{
LCD_Data(*disp++);
}
}
void LCD_Init()
{
LCD_Cmd(0x38,0);
Delay(5);
LCD_Cmd(0x06,0);
Delay(5);
LCD_Cmd(0x0C,0);
Delay(5);
LCD_Cmd(0x02,0);
Delay(5);
}
//GSM Functions
//Send SMS Function
void Send_SMS(unsigned char *msg)
{
USART_Send("AT\r");
LCD_Cmd(0x01,0);
LCD_Cmd(0x80,0);
LCD_String("AT");
LCD_Cmd(0xC0,0);
Delay(500);
LCD_String(dummy);
USART_Send("AT+CMGF=1\r");
LCD_Cmd(0x01,0);
LCD_Cmd(0x80,0);
LCD_String("AT+CMGF=1");
LCD_Cmd(0xC0,0);
Delay(500);
LCD_String(dummy);
USART_Send("AT+CMGS=\r");
LCD_Cmd(0x01,0);
LCD_Cmd(0x80,0);
LCD_String("AT+CMGS=");
LCD_Cmd(0xC0,0);
USART_Send(0x22);
USART_Send("+919531881579");
LCD_Cmd(0x01,0);
LCD_Cmd(0x80,0);
LCD_String("+919531881579");
LCD_Cmd(0xC0,0);
USART_Send(0x22);
Delay(500);
USART_Send(msg);
Delay(500);
USART_Send(0x1A);
USART_Send("SMS Sent...\r");
LCD_Cmd(0x01,0);
LCD_Cmd(0x80,0);
LCD_String("SMS Sent...");
LCD_Cmd(0xC0,0);
}
void Send_SMS2(unsigned char *msg)
{
USART_Send("AT+CMGF=1\r");
Delay(1000);
USART_Send("AT+CMGS=\"");
USART_Send(num);
USART_Send("\"\r");
Delay(1000);
USART_Send(msg);
USART_Send(26);
}
//Get IMEI
void Get_IMEI()
{
USART_Send("AT+GSN\r");
}
//Call Function
void Make_Call(unsigned char *number)
{
USART_Send("ATDT ");
USART_Send(number);
USART_Send(";\r");
}
//USART Functions
void USART_Send(unsigned char *data2send)
{
while(*data2send)
{
SBUF = *data2send++;
while(TI == 0);
TI = 0;
}
}
Last edited:
