` include <SoftwareSerial.h>
SoftwareSerial sim808(7,8);
char phone_no[] = “xxxxxxx”; // replace with your phone no.
String data[5];
#define DEBUG true
String state,timegps,latitude,longitude;
void setup() {
sim808.begin(9600);
Serial.begin(9600);
delay(50);
sim808.print(“AT+CSMP=17,167,0,0”); // set this parameter if empty SMS received
delay(100);
sim808.print(“AT+CMGF=1\r”);
delay(400);
sendData(“AT+CGNSPWR=1”,1000,DEBUG);
delay(50);
sendData(“AT+CGNSSEQ=RMC”,1000,DEBUG);
delay(150);
}
void loop() {
sendTabData(“AT+CGNSINF”,1000,DEBUG);
if (state !=0) {
Serial.println(“State :”+state);
Serial.println(“Time :”+timegps);
Serial.println(“Latitude :”+latitude);
Serial.println(“Longitude :”+longitude);
sim808.print(“AT+CMGS=\””);
sim808.print(phone_no);
sim808.println(“\””);
delay(300);
sim808.print(“[http://maps.google.com/maps?q=loc:”);](http://maps.google.com/maps?q=loc:%22);)
sim808.print(latitude);
sim808.print(“,”);
sim808.print (longitude);
delay(200);
sim808.println((char)26); // End AT command with a ^Z, ASCII code 26
delay(200);
sim808.println();
delay(20000);
sim808.flush();
} else {
Serial.println(“GPS Initializing…”);
}
}
void sendTabData(String command , const int timeout , boolean debug){
sim808.println(command);
long int time = millis();
int i = 0;
while((time+timeout) > millis()){
while(sim808.available()){
char c = sim808.read();
if (c != ‘,’) {
data[i] +=c;
delay(100);
} else {
i++;
}
if (i == 5) {
delay(100);
goto exitL;
}
}
}exitL:
if (debug) {
state = data[1];
timegps = data[2];
latitude = data[3];
longitude =data[4];
}
}
String sendData (String command , const int timeout ,boolean debug){
String response = “”;
sim808.println(command);
long int time = millis();
int i = 0;
while ( (time+timeout ) > millis()){
while (sim808.available()){
char c = sim808.read();
response +=c;
}
}
if (debug) {
Serial.print(response);
}
return response;
}`
}
The code above is what we used and we intended to make a gps gsm tracking system but it doesn’t work and we don’t know how to let this work pls help us this is for our research and we need urgent help
