#include <SoftwareSerial.h>
#include <TinyGPS++.h>

// Define GPS module connection pins
SoftwareSerial gpsSerial(4, 3);  // RX, TX

TinyGPSPlus gps;  // Create TinyGPS++ object
float lat,lon;
void setup() {
  
  pinMode(2, INPUT);
  Serial.begin(9600);  // Start Serial Monitor
  gpsSerial.begin(9600);  // Start GPS communication
  
  //Serial.println("GPS Module Testing...");
}

void loop() {
  while (gpsSerial.available() > 0) 
  {
    gps.encode(gpsSerial.read());  // Feed data into GPS object

    if (gps.location.isUpdated()) 
    {
      // Print the latitude and longitude
      Serial.print("Latitude: ");
      Serial.println(gps.location.lat(), 6);
      Serial.print("Longitude: ");
      Serial.println(gps.location.lng(), 6);
      Serial.print("Altitude: ");
      Serial.println(gps.altitude.meters());

      lat=(gps.location.lat(), 6);
      lon=(gps.location.lng(), 6);
    }

    if(digitalRead(2)==LOW)
    {

       Serial.println("AT"); // Test the communication
      delay(1000);
       Serial.println("AT+CMGF=1"); // Set SMS mode to text
     delay(1000);
  
      Serial.println("AT+CMGS=\"+1234567890\""); // Replace with the target phone number
      delay(1000);
      Serial.print("latitude"); // Message content
       Serial.print(lat);
      Serial.print("longitude"); // Message content
       Serial.print(lon);
      delay(1000);
       Serial.write((char)26);
    }


  }


}