NodeMCU ESP8266-12E Phone Locator Via Email Notification

/*************************************************************
  Download latest Blynk library here:
    https://github.com/blynkkk/blynk-library/releases/latest
  Blynk is a platform with iOS and Android apps to control
  Arduino, Raspberry Pi and the likes over the Internet.
  You can easily build graphic interfaces for all your
  projects by simply dragging and dropping widgets.
    Downloads, docs, tutorials: http://www.blynk.cc
    Sketch generator:           http://examples.blynk.cc
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                                http://twitter.com/blynk_app
  Blynk library is licensed under MIT license
  This example code is in public domain.
 *************************************************************
  This example runs directly on NodeMCU.
  Note: This requires ESP8266 support package:
    https://github.com/esp8266/Arduino
  Please be sure to select the right NodeMCU module
  in the Tools -> Board menu!
  For advanced settings please follow ESP examples :
   - ESP8266_Standalone_Manual_IP.ino
   - ESP8266_Standalone_SmartConfig.ino
   - ESP8266_Standalone_SSL.ino
  Change WiFi ssid, pass, and Blynk auth token to run :)
  Feel free to apply it to any other example. It's simple!
 *************************************************************/

/* Comment this out to disable prints and save space */
#define BLYNK_PRINT Serial
#include <SPI.h>
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#include <Blynk.h>
#include <SevSeg.h>


// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "YOUR AUTH CODE";

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "YOUR SSID";
char pass[] = "SSID PASSWORD";

String latitude;
String longitude;

BLYNK_WRITE(V0) { // Read Virtual Pin 0 for coordinates.
  GpsParam gps(param);

  Blynk.virtualWrite(V0, param[0].asString());
  Blynk.virtualWrite(V0, param[1].asString());

  latitude = param[0].asString(); // THIS IS A CHANGE FROM LAST CODE
  longitude = param[1].asString(); // THIS IS A CHANGE FROM LAST CODE

  // Print 6 decimal places for Lat, Lon

  Serial.print("Lat: ");
  Serial.println(gps.getLat(), 7);

  Serial.print("Lon: ");
  Serial.println(gps.getLon(), 7);

  // Print 2 decimal places for Alt, Speed
  Serial.print("Altitude: ");
  Serial.println(gps.getAltitude(), 2);

  Serial.print("Speed: ");
  Serial.println(gps.getSpeed(), 2);
}


void emailOnButtonPress()
{
  // *** WARNING: You are limited to send ONLY ONE E-MAIL PER 15 SECONDS! ***

  /* Let's send an e-mail when you press the button connected to digital pin
     2 on your Arduino.  Connected to Digital Pin D4 on the ESP8266-12E */

  int isButtonPressed = !digitalRead(2); // Invert state, since button is "Active LOW"

  if (isButtonPressed) // You can write any condition to trigger e-mail sending
  {
    Serial.println("Button is pressed. Locating Phone!"); // This can be seen in the Serial Monitor

    //String toSend is the string that will be sent as the emails body
    String toSend = "Phone Located! \n received co-ordinates \n";
    toSend += " LAT ";
    toSend += latitude;
    toSend += " LONG ";
    toSend += longitude;
    toSend += ". View location on Maps: ";
    toSend += "http://maps.google.com/?q=";
    toSend += latitude;
    toSend += ",";
    toSend += longitude;

    Blynk.email("email@email.com", "Subject: Phone Locator", toSend);
  }
}

void setup()
{
  // Debug console
  Serial.begin(115200);

  Blynk.begin(auth, ssid, pass);

  // Send e-mail when your hardware gets connected to Blynk Server
  // Just put the recepient's "e-mail address", "Subject" and the "message body"

  Blynk.email("email@email.com", "PhoneLocator Activated");

  // Setting the button
  pinMode(2, INPUT_PULLUP);
  // Attach pin 2 interrupt to our handler
  attachInterrupt(digitalPinToInterrupt(2), emailOnButtonPress, CHANGE);
}

void loop()
{
  Blynk.run();
}