I recently bought a new W5200 ethernet shield. I plugged it into my mega 2560 and ethernet cable to the router but the Linkled light is red, and I'm not sure what this means.
Anyways I tried running the WebServer example from the Ethernet library, my ip from ipconfig was 100.64.70.215, so I tried 210 and a few others but I always get "server is at 0.0.0.0" from the console (my laptop is connected wirelessly if that matters.)
I tried adding the gateway and subnet to the ethernet.begin thing, but that did not help either.
I went into command prompt and also tried to ping 100.64.70.210 and the other ones I tried but it always says host unreachable.
I tried to check directly my router settings, but I cannot connect to the default gateway which is supposed to be 100.64.64.1 (I keep getting "unable to connect".)
The only problem I could think of is that I'm trying to connect to a school network which might have some security things blocking it. I will try a different network when I get a chance but otherwise what else could be the problem?
The only problem I could think of is that I'm trying to connect to a school network which might have some security things blocking it. I will try a different network when I get a chance but otherwise what else could be the problem?
Sorry for the late reply, I was gone for the weekend. This is it:
/*
Web Server
A simple web server that shows the value of the analog input pins.
using an Arduino Wiznet Ethernet shield.
Circuit:
* Ethernet shield attached to pins 10, 11, 12, 13
* Analog inputs attached to pins A0 through A5 (optional)
created 18 Dec 2009
by David A. Mellis
modified 9 Apr 2012
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[] = {
0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED
};
IPAddress ip(100, 64, 70, 210);
// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
EthernetServer server(80);
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}
// start the Ethernet connection and the server:
Ethernet.begin(mac, ip);
server.begin();
Serial.print("server is at ");
Serial.println(Ethernet.localIP());
}
void loop() {
// listen for incoming clients
EthernetClient client = server.available();
if (client) {
Serial.println("new client");
// an http request ends with a blank line
boolean currentLineIsBlank = true;
while (client.connected()) {
if (client.available()) {
char c = client.read();
Serial.write(c);
// 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("Connection: close"); // the connection will be closed after completion of the response
client.println("Refresh: 5"); // refresh the page automatically every 5 sec
client.println();
client.println("<!DOCTYPE HTML>");
client.println("<html>");
// output the value of each analog input pin
for (int analogChannel = 0; analogChannel < 6; analogChannel++) {
int sensorReading = analogRead(analogChannel);
client.print("analog input ");
client.print(analogChannel);
client.print(" is ");
client.print(sensorReading);
client.println("
");
}
client.println("</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();
Serial.println("client disconnected");
}
}
SurferTim:
Are you using a library written for the w5200? The standard Arduino ethernet library is for the w5100.
Hmm that could be the problem too, I am using the one that came with the program.
Thanks, I no longer get the "server is at 0.0.0.0" problem, but when I try to go to the address I put, I get the "connection times out" thing in my browser.
So I'm using the webserver example from the library that you linked.
/*
Web Server
A simple web server that shows the value of the analog input pins.
using an Arduino Wiznet Ethernet shield.
Circuit:
* Ethernet shield attached to pins 10, 11, 12, 13
* Analog inputs attached to pins A0 through A5 (optional)
created 18 Dec 2009
by David A. Mellis
modified 9 Apr 2012
by Tom Igoe
*/
#include <SPI.h>
#include <EthernetV2_0.h>
// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = {
0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xFF };
IPAddress ip(100,64,69, 34);
byte subnet[] = {255, 255, 240, 0};
byte gateway[] = {100, 64, 64, 1};
// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
EthernetServer server(80);
#define W5200_CS 10
#define SDCARD_CS 4
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
pinMode(SDCARD_CS,OUTPUT);
digitalWrite(SDCARD_CS,HIGH);//Deselect the SD card
// start the Ethernet connection and the server:
Ethernet.begin(mac, ip, gateway, subnet);
server.begin();
Serial.print("server is at ");
Serial.println(Ethernet.localIP());
}
void loop() {
// listen for incoming clients
EthernetClient client = server.available();
if (client) {
Serial.println("new client");
// an http request ends with a blank line
boolean currentLineIsBlank = true;
while (client.connected()) {
if (client.available()) {
char c = client.read();
Serial.write(c);
// 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("Connnection: close");
client.println();
client.println("<!DOCTYPE HTML>");
client.println("<html>");
// add a meta refresh tag, so the browser pulls again every 5 seconds:
client.println("<meta http-equiv=\"refresh\" content=\"5\">");
// output the value of each analog input pin
for (int analogChannel = 0; analogChannel < 6; analogChannel++) {
int sensorReading = analogRead(analogChannel);
client.print("analog input ");
client.print(analogChannel);
client.print(" is ");
client.print(sensorReading);
client.println("
");
}
client.println("</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();
Serial.println("client disonnected");
}
}
Using ipconfig my ip I get is 100.64.69.29 (last week it was different) so i changed 29 to 34 in arduino (I also tried a few other numbers as well.)
Putting 100.64.69.34 into my browser gets connection timed out.
If I try pinging it in command prompt I get destination host unreachable.