GPS.ino

#include <TinyGPS++.h>
#include <SoftwareSerial.h>
#define BLYNK_PRINT Serial
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>

static const int RXPin = 4, TXPin = 5;   // connect tx to d2 
static const uint32_t GPSBaud = 9600; 
TinyGPSPlus gps;
WidgetMap myMap(V4);  // Pin V4 for map
SoftwareSerial ss(RXPin, TXPin); 
BlynkTimer timer;

float spd;           
String bearing;  

char auth[] = "cc465ead5603481fa1ce9bb89503f0c5";            
char ssid[] = "MSK";                                       
char pass[] = "12345678";                                  
unsigned int move_index = 1;       // fixed location for now
  

void setup()
{
  Serial.begin(115200);
  Serial.println();
  ss.begin(GPSBaud);
  Blynk.begin(auth, ssid, pass);
  timer.setInterval(5000L, checkGPS); 
}

void checkGPS(){
  if (gps.charsProcessed() < 10)
  {
    Serial.println(F("No GPS detected: check wiring."));
      Blynk.virtualWrite(V4, "GPS ERROR");  
  }
}

void loop()
{
    while (ss.available() > 0) 
    {
      if (gps.encode(ss.read()))
        displayInfo();
  }
  Blynk.run();
  timer.run();
}

void displayInfo()
{ 
  if (gps.location.isValid() ) 
  {
    float latitude = (gps.location.lat());     
    float longitude = (gps.location.lng()); 
    
    Serial.print("LAT:  ");
    Serial.println(latitude, 6);  
    Serial.print("LONG: ");
    Serial.println(longitude, 6);
    Blynk.virtualWrite(V1, String(latitude, 6));   
    Blynk.virtualWrite(V2, String(longitude, 6));  
    myMap.location(move_index, latitude, longitude, "GPS_Location");
    spd = gps.speed.kmph();               //get speed
       Blynk.virtualWrite(V3, spd);
       bearing = TinyGPSPlus::cardinal(gps.course.value()); // get the direction
       Blynk.virtualWrite(V5, bearing);               
  }
  Serial.println();
}