Ethernet Shield not working

Using Arduino Networking, Protocols, and Devices
#1

Hi guys,
I have a big problem, i'm a beginner so please help me.. :frowning:
I bought an Ethernet Shield and tried this tutorial :

I didn't worked, i also tried the examples from the Arduino library.
every time it says ERR_CONNECTION_REFUSED.
I changed the ip to my ipv4 computer adress and it is not working...
Can someone fix this for me ? I have no idea.
the chip is Wiznet W5100.
Thank you

#2

You can't use the same IP as your computer. The IPs must be unique.

Post your code.

#3

radulepy:
The CODE:

/*
Web Server Demo
thrown together by Randy Sarafan

A simple web server that changes the page that is served, triggered by a button press.

Circuit:

  • Ethernet shield attached to pins 10, 11, 12, 13
  • Connect a button between Pin D2 and 5V
  • Connect a 10K resistor between Pin D2 and ground

Based almost entirely upon Web Server by Tom Igoe and David Mellis

Edit history:
created 18 Dec 2009
by David A. Mellis
modified 4 Sep 2010
by Tom Igoe

*/

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

// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac = { 0x00, 0xAA, 0xBB, 0xCC, 0xDA, 0x02 };
IPAddress ip(192,168,0,105); //<<< ENTER YOUR IP ADDRESS HERE!!!

// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
EthernetServer server(80);

int buttonPress = 1;

void setup()
{
pinMode(2, INPUT);

// start the Ethernet connection and the server:
Ethernet.begin(mac, ip);
server.begin();
}

void loop()
{
buttonPress = digitalRead(2);
// listen for incoming clients
EthernetClient client = server.available();
if (client) {
// an http request ends with a blank line
boolean currentLineIsBlank = true;
while (client.connected()) {
if (client.available()) {
char c = client.read();
// if you’ve gotten to the end of the line (received a newline
// character) and the line is blank, the http request has ended,
// so you can send a reply
if (c == ‘\n’ && currentLineIsBlank) {
// send a standard http response header
client.println(“HTTP/1.1 200 OK”);
client.println(“Content-Type: text/html”);
client.println();

//serves a different version of a website depending on whether or not the button
//connected to pin 2 is pressed.
if (buttonPress == 1) {
client.println(“cke:html<cke:body bgcolor=#FFFFFF>LIGHT!</cke:body></cke:html>”);
}
else if (buttonPress == 0){
client.println(“cke:html<cke:body bgcolor=#000000 text=#FFFFFF>DARK!</cke:body></cke:html>”);
}

break;
}
if (c == ‘\n’) {
// you’re starting a new line
currentLineIsBlank = true;
}
else if (c != ‘\r’) {
// you’ve gotten a character on the current line
currentLineIsBlank = false;
}
}
}
// give the web browser time to receive the data
delay(1);
// close the connection:
client.stop();
}
}

My coputer ip is the same “192,168,0,105”;
With what should i replace ?
Thank you a lot @SurferTim

#4

If you are using an Ethernet shield, you must use the ICSP pins. Nothing connected to D11 to D13 on the shield.

#5