Hi all, so here's another Ethernet Shield problem/question. I'm using the Arduino Ethernet Shield R3 with the Arduino Mega 2560 R3. I've uploaded the Webserver sample sketch included with Arduino 1.0.1. The code loads fine however I can't get any response over the Ethernet connection. I can't get a response when I ping the IP either. The catch is that I've gotten this to work perfectly in the past (a few months ago), but now nothing. The SD card works fine, so no problems there, and I have pin 10 on the shield connected to pin 53 of the Mega. When it was working I never needed to modify the connections of Pins 11, 12, and 13. I'm really confused as to why this is not working now and hoping it's not a hardware issue. Even though it's a sample code, I've copied it below as well as the ipconfig results for my network. Any help would be greatly appreciated! Thanks!
/*
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(192,168,1, 177);
// 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("Connnection: close");
client.println();
client.println("");
client.println("");
// 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("");
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");
}
}
End of Code
Windows IP Configuration
Ethernet adapter Local Area Connection:
Media State...........: Media disconnected
Ethernet adapter Wireless Network Connection:
Connection-specific DNS Suffix .:
IP Address..........................: 192.168.0.11
Subnet Mask.......................: 255.255.255.0
Default Gateway...................: 192.168.0.1