How to Interface ENC28J60 Ethernet Module with Arduino

				
					/*
  modified on OCT 23, 2023
  Modified by MajidMerati from Arduino Examples
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*/

#include <SPI.h>
#include <EthernetENC.h>

// if you don't want to use DNS (and reduce your sketch size)
// use the numeric IP instead of the name for the server:
char server_char[4] = {192, 168, 6, 101};
IPAddress server_num(server_char[0], server_char[1], server_char[2], server_char[3]);  // numeric IP for Google (no DNS)
//char server_name[] = "just1look.ir";    // name address for Google (using DNS)

//Define port No.
int HTTP_PORT   = 80;

// Enter a MAC address for your controller below.
// Newer Ethernet shields have a MAC address printed on a sticker on the shield
byte mac[6] = {0x54, 0x55, 0x58, 0x10, 0x00, 0x24};

// Set the static IP address to use if the DHCP fails to assign
IPAddress ip(192, 168, 6, 102);
IPAddress myDns(192, 168, 6, 1);

// Initialize the Ethernet client library
// with the IP address and port of the server
// that you want to connect to (port 80 is default for HTTP):
EthernetClient client;

// Variables to measure the speed
unsigned long beginMicros, endMicros;
unsigned long byteCount = 0;
bool printWebData = true;  // set to false for better speed measurement

void setup() {
  // You can use Ethernet.init(pin) to configure the CS pin
  Ethernet.init(10);  // Most Arduino shields
  //Ethernet.init(5);   // MKR ETH shield
  //Ethernet.init(0);   // Teensy 2.0
  //Ethernet.init(20);  // Teensy++ 2.0
  //Ethernet.init(15);  // ESP8266 with Adafruit Featherwing Ethernet
  //Ethernet.init(33);  // ESP32 with Adafruit Featherwing Ethernet

  // Open serial communications and wait for port to open:
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }

  // start the Ethernet connection:
  Serial.println("Initialize Ethernet with DHCP:");
  if (Ethernet.begin(mac) == 0) {
    Serial.println("Failed to configure Ethernet using DHCP");
    // Check for Ethernet hardware present
    if (Ethernet.hardwareStatus() == EthernetNoHardware) {
      Serial.println("Ethernet shield was not found.  Sorry, can't run without hardware. :(");
      while (true) {
        delay(1); // do nothing, no point running without Ethernet hardware
      }
    }
    if (Ethernet.linkStatus() == LinkOFF) {
      Serial.println("Ethernet cable is not connected.");
    }
    // try to congifure using IP address instead of DHCP:
    Ethernet.begin(mac, ip, myDns);
  } else {
    Serial.print("  DHCP assigned IP ");
    Serial.println(Ethernet.localIP());
  }
  // give the Ethernet shield a second to initialize:
  delay(1000);
  Serial.print("connecting to ");
#ifdef  server_name
  Serial.print(server_name);
#else
  Serial.print(server_num);
#endif
  Serial.println("...");

  // if you get a connection, report back via serial:
#ifdef  server_name
  if (client.connect(server_name, HTTP_PORT)) {
#else
  if (client.connect(server_num, HTTP_PORT)) {
#endif
    Serial.print("connected to ");
    Serial.println(client.remoteIP());
    // Make a HTTP request:
    client.println("GET / HTTP/1.1");
#ifdef server_num
    client.print("Host:");  client.print(server_char[0]); client.print(','); client.print(server_char[1]); client.print(','); client.print(server_char[2]); client.print(','); client.println(server_char[3]);
#endif
#ifdef server_name
    client.print("Host:"); client.println(server_name);
#endif
    client.println("Connection: close");
    client.println();
  } else {
    // if you didn't get a connection to the server:
    Serial.println("connection failed");
  }
  beginMicros = micros();
}

void loop() {
  // if there are incoming bytes available
  // from the server, read them and print them:
  int len = client.available();
  if (len > 0) {
    //    byte buffer[80];
    //    if (len > 80) len = 80;
    //    client.read(buffer, len);
    String value;
    int Analog[6];
    while (true) {
      value = client.readStringUntil('\n');
      value.trim();
      if (value.startsWith("analog input")) {
        value.remove(0, 13);
        value.trim();
        Analog[value.substring(0, 1).toInt()] = value.substring(value.indexOf('s') + 1, value.indexOf('<')).toInt();
      }
      else if (value.startsWith("</html>")) {
        break;
      }
      Serial.println(value);
    }

    for(int i=0;i<6;i++){
      Serial.println(Analog[i]);
    }

    //    if (printWebData) {
    //      Serial.write(buffer, len); // show in the serial monitor (slows some boards)
    //    }
    //    byteCount = byteCount + len;
  }

  // if the server's disconnected, stop the client:
  if (!client.connected()) {
    endMicros = micros();
    Serial.println();
    Serial.println("disconnecting.");
    client.stop();
    Serial.print("Received ");
    Serial.print(byteCount);
    Serial.print(" bytes in ");
    float seconds = (float)(endMicros - beginMicros) / 1000000.0;
    Serial.print(seconds, 4);
    float rate = (float)byteCount / seconds / 1000.0;
    Serial.print(", rate = ");
    Serial.print(rate);
    Serial.print(" kbytes/second");
    Serial.println();

    // do nothing forevermore:
    while (true) {
      delay(1);
    }
  }
}