getting AT command on serial monitor while using gsm 900A

Using Arduino Networking, Protocols, and Devices
#1

hello , i am getting AT command on serial monitor screen while i am using gsm 900A with arduino what would be problem please help me!!!

#2

Post code. Use code tags.

#3

here

direct.ino (4.02 KB)

#4

See reply #1

#5

#include <SoftwareSerial.h>
SoftwareSerial gps(10,11); // RX, TX

//String str="";
char str[70];
String gpsString="";

char *test="$GPGGA";

String latitude="No Range ";
String longitude="No Range ";

int temp=0,i;
boolean gps_status=0;

void setup()
{
//lcd.begin(16,2);
Serial.begin(9600);
gps.begin(9600);

Serial.println(“Vehicle Tracking”);
//lcd.setCursor(0,1);
Serial.println(" System “);
delay(2000);
gsm_init();
//lcd.clear();
Serial.println(“AT+CNMI=2,2,0,0,0”);
Serial.println(“GPS Initializing”);
//lcd.setCursor(0,1);
Serial.println(” No GPS Range ");
get_gps();
delay(2000);
//lcd.clear();
Serial.println(“GPS Range Found”);
//lcd.setCursor(0,1);
delay(1000);
Serial.println(“GPS is Ready”);
delay(2000);
//lcd.clear();
Serial.println(“System Ready”);
temp=0;
}

void loop()
{
serialEvent();
if(temp)
{
get_gps();
tracking();
}
}

void serialEvent()
{
while(Serial.available())
{
if(Serial.find(“Track Vehicle”))
{
temp=1;
break;
}
else
temp=0;
}
}

void gpsEvent()
{
gpsString="";
while(1)
{
while (gps.available()>0) //checking serial data from GPS
{
char inChar = (char)gps.read();
gpsString+= inChar; //store data from GPS into gpsString
i++;
if (i < 7)
{
if(gpsString[i-1] != test[i-1]) //checking for $GPGGA sentence
{
i=0;
gpsString="";
}
}
if(inChar==’\r’)
{
if(i>65)
{
gps_status=1;
break;
}
else
{
i=0;
}
}
}
if(gps_status)
break;
}
}

void gsm_init()
{
// lcd.clear();
Serial.println(“Finding Module…”);
boolean at_flag=1;
while(at_flag)
{
Serial.println(“AT”);
while(Serial.available()>0)
{
if(Serial.find(“OK”))
at_flag=0;
}

delay(1000);
}

//lcd.clear();
Serial.println(“Module Connected…”);
delay(1000);
//lcd.clear();
Serial.println(“Disabling ECHO”);
boolean echo_flag=1;
while(echo_flag)
{
Serial.println(“ATE0”);
while(Serial.available()>0)
{
if(Serial.find(“OK”))
echo_flag=0;
}
delay(1000);
}

//lcd.clear();
Serial.println(“Echo OFF”);
delay(1000);
//lcd.clear();
Serial.println(“Finding Network…”);
boolean net_flag=1;
while(net_flag)
{
Serial.println(“AT+CPIN?”);
while(Serial.available()>0)
{
if(Serial.find("+CPIN: READY"))
net_flag=0;
}
delay(1000);
}
//lcd.clear();
Serial.println(“Network Found…”);
delay(1000);
//lcd.clear();
}

void get_gps()
{
gps_status=0;
int x=0;
while(gps_status==0)
{
gpsEvent();
int str_lenth=i;
latitude="";
longitude="";
int comma=0;
while(x<str_lenth)
{
if(gpsString==’,’)
comma++;
if(comma==2) //extract latitude from string
latitude+=gpsString[x+1];
else if(comma==4) //extract longitude from string
longitude+=gpsString[x+1];
x++;
}
int l1=latitude.length();
latitude[l1-1]=’ ‘;
l1=longitude.length();
longitude[l1-1]=’ ';
//lcd.clear();
Serial.println(“Lat:”);
Serial.print(“latitude”);
// lcd.setCursor(0,1);
Serial.print(“Long:”);
Serial.print(“longitude”);
i=0;x=0;
str_lenth=0;
delay(2000);
}
}

void init_sms()
{
Serial.println(“AT+CMGF=1”);
delay(400);
Serial.println(“AT+CMGS=”+91**********""); // use your 10 digit cell no. here
delay(400);
}

void send_data(String message)
{
Serial.println(message);
delay(200);
}

void send_sms()
{
Serial.write(26);
}

//void lcd_status()
//{
// lcd.clear();
// lcd.print(“Message Sent”);
// delay(2000);
// lcd.clear();
// lcd.print(“System Ready”);
// return;
//}

void tracking()
{
init_sms();
send_data(“Vehicle Tracking Alert:”);
send_data(“Your Vehicle Current Location is:”);
Serial.print(“Latitude:”);
send_data(latitude);
Serial.print(“Longitude:”);
send_data(longitude);
send_data(“Please take some action soon…\nThankyou”);
send_sms();
delay(2000);
// lcd_status();
}

#6

i have solved this problem . but another problem is that my gps is not working how can i find the problem?

#7

kju: i have solved this problem . but another problem is that my gps is not working how can i find the problem?

How did you solve the problem?

#8