#include <TinyGPS++.h>

// The TinyGPS++ object
TinyGPSPlus gps;

void setup()
{
  //enabling XLB_VDD power rail to give power to the module
  pinMode(XLB_EN, OUTPUT);
  digitalWrite(XLB_EN, HIGH);
  delay(1000);
  Serial.begin(115200);
  Serial1.begin(9600);
  
}

void loop()
{
  // This sketch displays information every time a new sentence is correctly encoded.
  while (Serial1.available() > 0){
    if (gps.encode(Serial1.read())){
      displayInfo();
    }
  }

  if (millis() > 5000 && gps.charsProcessed() < 10)
  {
    Serial.println(F("No GPS detected: check wiring."));
    while(true);
  }
}

void displayInfo()
{
  Serial.print(F("Location: ")); 
  if ( gps.location.isValid() && gps.location.age() < 5000 )
  {
    Serial.print(gps.location.lat(), 6);
    Serial.print(F(","));
    Serial.print(gps.location.lng(), 6);
    digitalWrite(LED_BLUE,HIGH);
    delay(200);
    digitalWrite(LED_BLUE,LOW);
  }
  else
  {
    Serial.print(F("INVALID"));
  }

  Serial.print(F("  Date/Time: "));
  if (gps.date.isValid())
  {
    Serial.print(gps.date.month());
    Serial.print(F("/"));
    Serial.print(gps.date.day());
    Serial.print(F("/"));
    Serial.print(gps.date.year());
  }
  else
  {
    Serial.print(F("INVALID"));
  }

  Serial.print(F(" "));
  if (gps.time.isValid())
  {
    if (gps.time.hour() < 10) Serial.print(F("0"));
    Serial.print(gps.time.hour());
    Serial.print(F(":"));
    if (gps.time.minute() < 10) Serial.print(F("0"));
    Serial.print(gps.time.minute());
    Serial.print(F(":"));
    if (gps.time.second() < 10) Serial.print(F("0"));
    Serial.print(gps.time.second());
    Serial.print(F("."));
    if (gps.time.centisecond() < 10) Serial.print(F("0"));
    Serial.print(gps.time.centisecond());
  }
  else
  {
    Serial.print(F("INVALID"));
  }

  Serial.println();
}