Arduino + ENC28j60 failed to connect to the global internet

Projects Networking, Protocols, and Devices
1

Hello everyone, I can't figure out the seemingly simple situation arduino + ENC28j60 in client mode for parsing the site. I connect everything according to the instructions and a simple sketch from the example does not work for me

#include <Ethernet.h>           //library for ethernet functions
#include <SPI.h>
#include <Client.h>             //library for client functions
byte mac[] =  { 0x74,0x69,0x69,0x2D,0x30,0x31 };
byte ip[] = { 192,168,1,25};  //The Arduino device IP address
byte subnet[] = { 255,255,255,0};
byte gateway[] = { 192,168,1,1};
IPAddress server { 64, 233, 187, 99  }; // Google
            
EthernetClient client;
bool connected = false;                                
void setup(void) {                                     
    Serial.begin(9600);                                
    Serial.println("Initializing Ethernet.");
    delay(1000);
    //Ethernet.begin(mac, ip , gateway , subnet);    //tried this, no working
    Ethernet.begin(mac);    
}
void loop(void) {                                      
    if(!connected)   {                                 
      Serial.println("Not connected");
      if (client.connect(server, 80)) {                
          connected = true;                                              
          Serial.println("Connected");
          client.println("GET /search?q=arduino HTTP/1.0");
          delay(1000);                                            
      }
      else{
        Serial.println("Cannot connect to Server");               
      }
    }  
    else {
      delay(1000);                                              
      while (client.connected() && client.available()) {        
        char c = client.read();                                 
        Serial.print(c);                                        
      }                                                         
      Serial.println();                                         
      client.stop();                                            
      connected = false;                                        
    }
}

The first thought is to check if my bundle works at all, I checked it on this sketch:

#include <EtherCard.h>
static byte mymac[] = { 0x74,0x69,0x69,0x2D,0x30,0x31 };
byte Ethernet::buffer[700];
void setup () {
   Serial.begin(57600);
   Serial.println(F("n[testDHCP]"));
   Serial.print("MAC: ");
   for (byte i = 0; i < 6; ++i) {
      Serial.print(mymac[i], HEX);
       if (i < 5)
         Serial.print(':');
        }
     Serial.println();
    if (ether.begin(sizeof Ethernet::buffer, mymac) == 0)
        Serial.println(F("Failed to access Ethernet controller"));
    Serial.println(F("Setting up DHCP"));
    if (!ether.dhcpSetup())
        Serial.println(F("DHCP failed"));

   ether.printIp("My IP: ", ether.myip);
   ether.printIp("Netmask: ", ether.netmask);
   ether.printIp("GW IP: ", ether.gwip);
   ether.printIp("DNS IP: ", ether.dnsip);
}
void loop () {}

on it I get the following.

n[testDHCP]
MAC: 74:69:69:2D:30:31
Setting up DHCP
My IP: 192.168.1.25
Netmask: 255.255.255.0
GW IP: 192.168.1.1
DNS IP: 192.168.1.1

I also ran a sketch of a local server - I can connect to arduino, but I can not connect arduino to a server on the global Internet, apparently I do not understand something

2

Ethernet library is for Wiznet chips W5100, W5200 and W5500.
for the ENC28j60 use EthernetENC library. install it in Library Manager.

what Arduino do you use?

3

Juraj:
what Arduino do you use?

UNO

4

ololoepololoe:
UNO

ok. use pin 10 for CS or if you use some other pin set it with Ethernet.init()

5

Here's what I found, this sketch works

#include <EtherCard.h>

static byte mymac[] = { 0x74,0x69,0x69,0x2D,0x30,0x31 };

byte Ethernet::buffer[700];
static uint32_t timer;

const char website[] PROGMEM = "www.google.com";

// called when the client request is complete
static void my_callback (byte status, word off, word len) {
  Serial.println(">>>");
  Ethernet::buffer[off+300] = 0;
  Serial.print((const char*) Ethernet::buffer + off);
  Serial.println("...");
}

void setup () {
  Serial.begin(9600);
  Serial.println(F("\n[webClient]"));

  if (ether.begin(sizeof Ethernet::buffer, mymac) == 0) 
    Serial.println(F("Failed to access Ethernet controller"));
  if (!ether.dhcpSetup())
    Serial.println(F("DHCP failed"));

  ether.printIp("IP:  ", ether.myip);
  ether.printIp("GW:  ", ether.gwip);  
  ether.printIp("DNS: ", ether.dnsip);  

  if (!ether.dnsLookup(website))
    Serial.println("DNS failed");
    
  ether.printIp("SRV: ", ether.hisip);
}

void loop () {
  ether.packetLoop(ether.packetReceive());
  
  if (millis() > timer) {
    timer = millis() + 5000;
    Serial.println();
    Serial.print("<<< REQ ");
    ether.browseUrl(PSTR("/foo/"), "bar", website, my_callback);
  }
}

that is, I can get the site "www.google.com" but I can’t get the 64.233.187.99

6

yes but EtherCard library doesn't use the standard Arduino networking classes so you can use it with Ethernet library examples

7

Juraj:
ok. use pin 10 for CS or if you use some other pin set it with Ethernet.init()

already use this

8

I took the w5100 shield and it works

#include <SPI.h>
#include <Ethernet.h>

byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //physical mac address
byte myserver[] = { 197, 166, 245, 115}; //

EthernetClient client;

void setup() {

  //Ethernet.begin(mac, ip, myDns);
  Ethernet.begin(mac);
  Serial.begin(9600);
  
}

void loop() {

  delay(3000);
 
  if (client.connect(myserver, 8081)) {  
    Serial.println("connected");
    client.println("GET /adress HTTP/1.0"); //GET request
    client.println(); //end of get request

  }
  else {
    Serial.println("connection failed"); 
    Serial.println();
  }

  while (client.connected() && !client.available()) delay(100); 
  while (client.connected() || client.available()) { 

    char webdata = client.read(); 
     // parse webdata

  }

  Serial.println();
  Serial.println("disconnecting.");
  Serial.println();
  client.stop(); //stop client

}

and i don't know why enc28j60 is not connecting to ip

9

ololoepololoe:
I took the w5100 shield and it works

and i don't know why enc28j60 is not connecting to ip

the enc28j60 was not on shield so you wired it. how?

10

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