#include<Softwareserial.h>
#include <Tinygps.h>
long lat,lon;//Create variable for latitude and longitude object SoftwareSerial gpsSerial(4, 5);//create gps sensor connection TinyGPS gps;//create GPS object 
int EP=9; 
void setup()
{ 
pinMode(EP, INPUT); 
Serial.begin(9600); 
Serial.print("\r"); 
delay(1000);
gpsSerial.begin(9600); 
}

void loop() 
{ 
while(gpsSerial.available()) 
{ 
if(gps.encode(gpsSerial.read()))//encode gps data
{
gps.get_position(&lat,&lon);//get latitude and longitude Serial.print("Position:"); 
Serial.print("lat:"); 
Serial.print(lat); 
Serial.print(""); 
Serial.print("lon:"); 
Serial.println(lon); } 
}

long measurement= TP_init(); 
delay(50); 
Serial.print("measurment= "); 
Serial.println(measurement); 

if(measurement> 50000) 
{ 
SendTextMessage(); 
} 
else { Serial.print("AT\r");
} 
}

long TP_init() 
{ 
delay(10); 
long measurement=pulseIn (EP, HIGH); 
return measurement; 
}

void SendTextMessage()
{ 
Serial.print("AT+CMGF=1\r");
delay(1000); 
Serial.print("AT+CMGS=\"+9**********\"\r"); 
delay(1000); 
Serial.print("Accident Detected At Location:"&lat,&lon); delay(1000); 
Serial.write(0x1A); 
delay(1000); 
}