Blynk 2.0 working with esp8266 IOT Board (Arduino IDE 2.0)

esp8266_Blynk_2.ino

// Definitions
// Template ID, Device Name and Auth Token are provided by the Blynk.Cloud
// See the Device Info tab, or Template settings
#define BLYNK_TEMPLATE_ID           "TMPLB_PpB7qe"      // template ID Not Template ID
#define BLYNK_DEVICE_NAME           "esp8266" //Here Device_Name not Template Name
#define BLYNK_AUTH_TOKEN            "n5x628GDTFMk0hNa-69lhHK94hPSYX_a"


// Comment this out to disable prints and save space
#define BLYNK_PRINT Serial

//hardWare Specifics
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>

char auth[] = BLYNK_AUTH_TOKEN;


// Your WiFi credentials.
char ssid[] =  "Sucheendradas"; //  "WIFI NAME";
char pass[] =  "55555555";     //  "WIFI PASSWORD"; // Set password to "" for open networks.


bool fetch_blynk_state = true;  //true or false
#define wifiLed   LED_BUILTIN   //D0int 
int wifiFlag = 0;


// (NodeMcu OutPuts)
// define the GPIO connected with lED and Relays 
#define RED_LED_Pin   16  //D0 // Look at esp8266's Board , and Look Pin diagram, Here We Using GPIO Number
#define GREEN_LED_Pin 5   //D1 // Look at esp8266's Board , and Look Pin diagram, Here We Using GPIO Number

// the virtual pins 
#define VPIN_SWITCH_1    V0 // DataStream Virtual pin for Red LED's Widget Switch
#define VPIN_SWITCH_2    V1 // DataStream Virtual pin for Green LED's Widget Switch

bool RED_LED_State   = LOW; //Define integer to remember the toggle state for RED LED
bool GREEN_LED_State = LOW; //Define integer to remember the toggle state for GREEN LED


BlynkTimer timer;


BLYNK_WRITE(VPIN_SWITCH_1) // Executes when the value of virtual pin 0 changes
{      
     RED_LED_State = param.asInt();
     if( RED_LED_State == 1){ digitalWrite(RED_LED_Pin,HIGH);  delay(10);}
     if( RED_LED_State == 0){ digitalWrite(RED_LED_Pin,LOW );  delay(10);}
    // digitalWrite(RED_LED_Pin, RED_LED_State);    
}

BLYNK_WRITE(VPIN_SWITCH_2) // Executes when the value of virtual pin 0 changes
{      
     GREEN_LED_State = param.asInt();
     digitalWrite(GREEN_LED_Pin, GREEN_LED_State);    
}


BLYNK_CONNECTED() {
  // Request the latest state from the server
  if (fetch_blynk_state){
    Blynk.syncVirtual(VPIN_SWITCH_1);
    Blynk.syncVirtual(VPIN_SWITCH_2);
  }  
}

void checkBlynkStatus() { // called every 2 seconds by SimpleTimer

  bool isconnected = Blynk.connected();
  if (isconnected == false) {
    Serial.println("Blynk Not Connected");
    digitalWrite(wifiLed, HIGH);
  }
  if (isconnected == true) {
        
    if (!fetch_blynk_state){
    Blynk.virtualWrite(VPIN_SWITCH_1, RED_LED_State  );
    Blynk.virtualWrite(VPIN_SWITCH_2, GREEN_LED_State);   
    }
    
    wifiFlag = 0;
    digitalWrite(wifiLed, LOW);
    //Serial.println("Blynk Connected");
  }
}

void setup()
{     
       // Debug console
      Serial.begin(115200);
      
      pinMode(wifiLed, OUTPUT);
  
      pinMode(RED_LED_Pin,   OUTPUT); // Initialise digital pin 5 as an output pin
      pinMode(GREEN_LED_Pin, OUTPUT); // Initialise digital pin 4 as an output pin

      //During Starting all LED are Turned OFF
      digitalWrite(RED_LED_Pin,   LOW);
      digitalWrite(GREEN_LED_Pin, LOW);

      Blynk.begin(auth, ssid, pass);
      // You can also specify server:
      //Blynk.begin(auth, ssid, pass, "blynk.cloud", 80);
      //Blynk.begin(auth, ssid, pass, IPAddress(192,168,1,100), 8080);

      //Setup a function to be called every second
      timer.setInterval(2000L, checkBlynkStatus); // check if Blynk server is connected every 2 seconds
      delay(1000);
  
      if (!fetch_blynk_state){
         Blynk.virtualWrite(VPIN_SWITCH_1, RED_LED_State  );
         Blynk.virtualWrite(VPIN_SWITCH_2, GREEN_LED_State);       
       }
}

void loop()
{
  Blynk.run();
  timer.run();
  // You can inject your own code or combine it with other sketches.
  // Check other examples on how to communicate with Blynk. Remember
  // to avoid delay() function!
}