Modified By,

Technical Team, REES52

#define BLYNK_PRINT Serial

#include <SPI.h>             // Library for SPI

#include <Ethernet.h>     // Library for Ethernet

#include <BlynkSimpleEthernet.h>     // Library for Blynk

// You should get Auth Token in the Blynk App.

// Go to the Project Settings (nut icon).

char auth[] = "52861cfcce7c48a097fb3cbb190c5fdc";

int LDR_Pin = A0;          // Analog Pin for LDR

#define W5100_CS  10

#define SDCARD_CS 4

/* The setup() function is called when a sketch starts. It is used to initialize variables, pin modes, start using libraries, etc. This function will only run once, after each power up or reset of the Arduino board. */

void setup()

{

  // Debug console

  Serial.begin(9600);          // Baud Rate

  Serial.println("LDR Light Sensor ");     // Print the Message

  pinMode(SDCARD_CS, OUTPUT);

  digitalWrite(SDCARD_CS, HIGH);      // Deselect the SD card

  Blynk.begin(auth);                           

  // You can also specify server:

  //Blynk.begin(auth, "blynk-cloud.com", 80);

  //Blynk.begin(auth, IPAddress(192,168,1,100), 8080);

  // For more options, see Boards_Ethernet/Arduino_Ethernet_Manual example

}

/* The loop() function executes the program repeatedly until Specified. */

void loop()

{

  Serial.println(analogRead(LDR_Pin));    // Read the Values from Analog Pin

  delay(3000);                                           // Wait for 3000 ms

  Blynk.run();                                           

}