Hello Arduino

/* Ajax 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 4 Sep 2010 by Tom Igoe modified 12 Jun 2012 by Bang Naga - - - - - - - - - - - - - - - - - - - - - - - - modified 16 Sep 2011 // Ajax version. by TETRASTYLE for Arduino IDE 0022 get Digital & Analog port status ( JSON(P) formatted data) <-- http://192.168.1.177/?= return value --> cb({"D":[D0,D1,D2,D3,D4,D5,D6,D7],"A":[A0,A1,A2,A3,A4,A5]}); toggle Digital Port (D0 - D7) <-- http://192.168.1.177/?btn=0 <-- http://192.168.1.177/?btn=1 ... <-- http://192.168.1.177/?btn=7 */ #include #include boolean gflag=false; String parm; int dout[8]={0,0,0,0,0,0,0,0}; // 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 }; byte ip[] = { 192, 168, 10, 73 }; byte subnet[] = { 255,255,255,0}; byte gateway[] = { 192,168,0,254}; // Initialize the Ethernet server library // with the IP address and port you want to use // (port 80 is default for HTTP): Server server(80); void setup() { for (int i=0;i<8;i++){ pinMode(i,OUTPUT); digitalWrite(i,dout[i]); } // start the Ethernet connection and the server: // Ethernet.begin(mac, ip); Ethernet.begin(mac, ip , gateway , subnet); server.begin(); //Serial.begin(19200); } void loop() { // listen for incoming clients Client client = server.available(); if (client) { // an http request ends with a blank line boolean currentLineIsBlank = true; while (client.connected()) { if (client.available()) { char c = client.read(); // serch parameter from "HTTP GET" if(gflag){ if(c != ' '){ parm += c; }else{ gflag = false; } } if(c == '?' && parm == ""){ gflag = true; } //Serial.print(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 if(parm == ""){ // normal HTTP access client.println("HTTP/1.1 200 OK"); client.println("Content-Type: text/html"); client.println(); client.println("Hello Arduino"); client.println(""); client.println("

"); client.println("
"); }else{ // using XMLhttpObject access int check = parm.indexOf('='); if(check != -1){ //Set Digital Port int check2 = parm.indexOf('btn'); if(check2 != -1){ int port = (parm.substring(check+1)).toInt(); dout[port] = !dout[port]; digitalWrite(port, dout[port]); } //Write JSONP Data (Digital & Analog Ports Status, Callback function name is 'cb') client.print("cb({\"D\":["); for(int i=0; i<8; i++ ){ client.print(dout[i]); if(i<7){ client.print(","); } } client.print("],\"A\":["); for(int i=0; i<6; i++ ){ client.print(analogRead(i)); if(i<5){ client.print(","); } } client.print("]});"); } parm = ""; } 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(); } }