/* 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 #include #include File tmpPath; File logFile; ///////////////////////////////////////////////////////////////////// // Enter a MAC address and IP address for your controller below. // The IP address will be dependent on your local network: byte mac[] = { 1, 1, 1, 1, 1, 1 }; IPAddress ip(192, 168, 13, 11); IPAddress gateway( 192, 168, 15, 1); // the IP of the router or acsesspoint IPAddress subnet(255, 255, 255, 0 ); // Initialize the Ethernet server library // with the IP address and port you want to use // (port 80 is default for HTTP): EthernetServer server(25565); void setup() { pinMode(10,OUTPUT); digitalWrite(10,HIGH); pinMode(53,OUTPUT); delay(50); Serial.begin(57600); if (!SD.begin(4)) { Serial.println("initialization failed!"); } else { Serial.println("initialization done."); } // 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') { // 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(""); client.println(""); // 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 "); //If i comment this line, it no longer works client.print(sensorReading); // client.println("
"); } tmpPath = SD.open("/"); //set the tmpFile to the root tmpPath.rewindDirectory(); Serial.println("ls"); File entry = tmpPath.openNextFile(); while (entry) { Serial.print("\t"); Serial.print(entry.name()); Serial.print(" - "); Serial.println(entry.size()); entry.close(); entry = tmpPath.openNextFile(); } tmpPath.close(); 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 disconnected"); } }