I've found a very similar project to mine, but it uses Arduino Uno with the official ethernet shield. I use Arduino Uno with official WIFI shield. The code for the ethernet is below. What do I have to change to make it compatible with my version?
#include <SPI.h>
#include <Ethernet.h>
// MAC address from Ethernet shield sticker under board
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress ip(10, 0, 0, 20); // IP address, may need to change depending on network
EthernetServer server(80); // create a server at port 80
String HTTP_req; // stores the HTTP request
void setup()
{
Ethernet.begin(mac, ip); // initialize Ethernet device
server.begin(); // start to listen for clients
Serial.begin(9600); // for diagnostics
pinMode(7, INPUT); // switch is attached to Arduino pin 7
pinMode(8, INPUT); // switch is attached to Arduino pin 8
}
void loop()
{
EthernetClient client = server.available(); // try to get client
if (client) { // got client?
boolean currentLineIsBlank = true;
while (client.connected()) {
if (client.available()) { // client data available to read
char c = client.read(); // read 1 byte (character) from client
HTTP_req += c; // save the HTTP request 1 char at a time
// last line of client request is blank and ends with \n
// respond to client only after last line received
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: keep-alive");
client.println();
// AJAX request for switch state
if (HTTP_req.indexOf("ajax_switch") > -1) {
// read switch state and analog input
GetAjaxData(client);
}
else { // HTTP request for web page
// send web page - contains JavaScript with AJAX calls
client.println("<!DOCTYPE html>");
client.println("<html>");
client.println("<head>");
client.println("<title>Arduino Web Page</title>");
client.println("<script>");
client.println("function GetSwitchAnalogData() {");
client.println(
"nocache = \"&nocache=\" + Math.random() * 1000000;");
client.println("var request = new XMLHttpRequest();");
client.println("request.onreadystatechange = function() {");
client.println("if (this.readyState == 4) {");
client.println("if (this.status == 200) {");
client.println("if (this.responseText != null) {");
client.println("document.getElementById(\"sw_an_data\")\
.innerHTML = this.responseText;");
client.println("}}}}");
client.println(
"request.open(\"GET\", \"ajax_switch\" + nocache, true);");
client.println("request.send(null);");
client.println("setTimeout('GetSwitchAnalogData()', 1000);");
client.println("}");
client.println("</script>");
client.println("</head>");
client.println("<body onload=\"GetSwitchAnalogData()\">");
client.println("<h1>Arduino AJAX Input</h1>");
client.println("<div id=\"sw_an_data\">");
client.println("</div>");
client.println("</body>");
client.println("</html>");
}
// display received HTTP request on serial port
Serial.print(HTTP_req);
HTTP_req = ""; // finished with request, empty string
break;
}
// every line of text received from the client ends with \r\n
if (c == '\n') {
// last character on line of received text
// starting new line with next character read
currentLineIsBlank = true;
}
else if (c != '\r') {
// a text character was received from client
currentLineIsBlank = false;
}
} // end if (client.available())
} // end while (client.connected())
delay(1); // give the web browser time to receive the data
client.stop(); // close the connection
} // end if (client)
}
// send the state of the switch to the web browser
void GetAjaxData(EthernetClient cl)
{
int analog_val;
if (digitalRead(7)) {
cl.println("<p>Switch 7 state: ON</p>");
}
else {
cl.println("<p>Switch 7 state: OFF</p>");
}
if (digitalRead(8)) {
cl.println("<p>Switch 8 state: ON</p>");
}
else {
cl.println("<p>Switch 8 state: OFF</p>");
}
// read analog pin A2
analog_val = analogRead(2);
cl.print("<p>Analog A2: ");
cl.print(analog_val);
cl.println("</p>");
}