#include <TinyGPS++.h>

#define GPS_BAUDRATE 9600

#define RXD2  16
#define TXD2  17

TinyGPSPlus gps;

void setup() {
  Serial.begin(9600);
  Serial2.begin(GPS_BAUDRATE, SERIAL_8N1, RXD2, TXD2);
  Serial.println(F("NEO-6M GPS Module Simulation on ESP32"));
}

void loop() {
  if (Serial2.available() > 0) {
    if (gps.encode(Serial2.read())) {
      Serial.print(F("Location: Vaddeswaram\t("));
      Serial.println("Actual Latitude: 16.4510° N\t");
      Serial.print("Actual Longitude: 80.6220° E\t");
      Serial.println("Actual Altitude: 12 meters");

      if (gps.location.isValid()) {
        Serial.print(F("Latitude: "));
        Serial.print(gps.location.lat(), 6);
        Serial.print(F(", "));
        
        Serial.print(F("Longitude: "));
        Serial.print(gps.location.lat(), 6);
        Serial.print(F(", "));
        
        Serial.print(F("Altitude: "));
        if (gps.altitude.isValid())
          Serial.print(gps.altitude.meters());
        else
          Serial.println(F("INVALID"));
      } else {
        Serial.println(F("INVALID"));
      }

      Serial.println(F(")"));
      Serial.println();
    }
  }

  if (millis() > 5000 && gps.charsProcessed() < 10)
    Serial.println(F("No GPS Data received: check your wiring"));
}