I recently bought a WizNet 5100 based ethernet + SD shield (R3?) after having used an ENC28J60 based shield.UNfortulately I am having problems trying to get this new shield to connect to the network, so I need some collective intelligence applied to this problem...
The power LED lights up so I know I have power. Uno is powered off the USB port.
The etherent LEDs on the 'HanRun' network socket do not light up. The cable plugged into a laptop works fine, so the network is operational.
The Webserver sketch from the IDE examples echoes ther IP address to the serial port but does not allow connections (maybe not surprisingly given 2 above). MAC address is as per sketch and the IP address is in the range for the rest of the network with no duplication.
I have corrected some solder bridges on the Wiznet chip (lower row in the picture) and there appear to be a few other on pins that look like they should be connected anyway (vertical row).
I am running an Uno board with version 1.0.1 IDE. The board is 'brand new' and I have the option of returning it, but I want to try to get it working before I invest time and money in the returns process.
Below is some combined client/server code for testing. This works when the arduino ethernet shield is connected to a router.
//zoomkat 7-03-12, combined client and server
//simple button GET with iframe code
//for use with IDE 1.0
//open serial monitor and send an g to test client and
//see what the arduino client/server receives
//web page buttons make pin 5 high/low
//use the ' in html instead of " to prevent having to escape the "
//address will look like http://192.168.1.102:84 when submited
//for use with W5100 based ethernet shields
//note that the below bug fix may be required
// http://code.google.com/p/arduino/issues/detail?id=605
#include <SPI.h>
#include <Ethernet.h>
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //assign arduino mac address
byte ip[] = { 192, 168, 1, 102 }; // ip in lan assigned to arduino
byte gateway[] = { 192, 168, 1, 1 }; // internet access via router
byte subnet[] = { 255, 255, 255, 0 }; //subnet mask
EthernetServer server(84); //server port arduino server will use
EthernetClient client;
char serverName[] = "web.comporium.net"; // (DNS) zoomkat's test web page server
//byte serverName[] = { 208, 104, 2, 86 }; // (IP) zoomkat web page server IP address
String readString; //used by server to capture GET request
//////////////////////
void setup(){
pinMode(5, OUTPUT); //pin 5 selected to control
Ethernet.begin(mac,ip,gateway,gateway,subnet);
server.begin();
Serial.begin(9600);
Serial.println("server/client 1.0 test 7/03/12"); // keep track of what is loaded
Serial.println("Send an g in serial monitor to test client"); // what to do to test client
}
void loop(){
// check for serial input
if (Serial.available() > 0)
{
byte inChar;
inChar = Serial.read();
if(inChar == 'g')
{
sendGET(); // call client sendGET function
}
}
EthernetClient client = server.available();
if (client) {
while (client.connected()) {
if (client.available()) {
char c = client.read();
//read char by char HTTP request
if (readString.length() < 100) {
//store characters to string
readString += c;
//Serial.print(c);
}
//if HTTP request has ended
if (c == '\n') {
///////////////
Serial.println(readString); //print to serial monitor for debuging
//now output HTML data header
if(readString.indexOf('?') >=0) { //don't send new page
client.println("HTTP/1.1 204 Zoomkat");
client.println();
client.println();
}
else {
client.println("HTTP/1.1 200 OK"); //send new page on browser request
client.println("Content-Type: text/html");
client.println();
client.println("<HTML>");
client.println("<HEAD>");
client.println("<TITLE>Arduino GET test page</TITLE>");
client.println("</HEAD>");
client.println("<BODY>");
client.println("<H1>Zoomkat's simple Arduino 1.0 button</H1>");
client.println("<a href='/?on' target='inlineframe'>ON</a>");
client.println("<a href='/?off' target='inlineframe'>OFF</a>");
client.println("<IFRAME name=inlineframe style='display:none'>");
client.println("</IFRAME>");
client.println("</BODY>");
client.println("</HTML>");
}
delay(1);
//stopping client
client.stop();
///////////////////// control arduino pin
if(readString.indexOf("on") >0)//checks for on
{
digitalWrite(5, HIGH); // set pin 5 high
Serial.println("Led On");
}
if(readString.indexOf("off") >0)//checks for off
{
digitalWrite(5, LOW); // set pin 5 low
Serial.println("Led Off");
}
//clearing string for next read
readString="";
}
}
}
}
}
//////////////////////////
void sendGET() //client function to send and receive GET data from external server.
{
if (client.connect(serverName, 80)) {
Serial.println("connected");
client.println("GET /~shb/arduino.txt HTTP/1.0");
client.println();
}
else {
Serial.println("connection failed");
Serial.println();
}
while(client.connected() && !client.available()) delay(1); //waits for data
while (client.connected() || client.available()) { //connected or data available
char c = client.read();
Serial.print(c);
}
Serial.println();
Serial.println("disconnecting.");
Serial.println("==================");
Serial.println();
client.stop();
}
Plugged the board back in and the network cable and it all lit up correclty - so the board can work...
@zoomcat - the test worked fine and I got a response from your server.
Unplugged the board and cable, put it back together and it is now not working any more. I hate intermittent faults (although this is more like intermittent working).
@marco_c , in the WebServer example sketch from Arduino 1.0.1, after the line if(c == "\n" ... I think the client.print... commands should be changed to server.print... except for the last one client.stop() . I think this is the same problem from mrbubl3s in 2010 on the old forum. If somebody agrees with this, maybe the example code and page should be updated.
What I tried was combining the WebServer example with the Arduino Data Server code from Hari (http://arduino.cc/forum/index.php/topic,6595.0.html#0), and then I was able to see the text output printed by server.print commands via a browser pointed to the arduino's ip. Note that in Hari's code example, you need to change "Client" to "EthernetClient" and "Server" to "EthernetServer" for the class definitions.
