Untitled



#include <SPI.h>
#include <Ethernet.h>
#include <Servo.h>
Servo myservo;  // create servo object to control a servo
int R; //value to write to red
int G;  //value to write to green
int B;  //value to write to blue

byte mac[] = {
  0x90, 0xA2, 0xDA, 0x0D, 0xFE, 0x59
};
IPAddress ip(192, 168, 0, 103);

// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
EthernetServer server(80);

String readString;

//////////////////////

void setup(){

  //start Ethernet
  Ethernet.begin(mac, ip);
  server.begin();

  //enable serial data print
  Serial.begin(9600);

  Serial.println("RGB test"); // so I can keep track of what is loaded
}

void loop(){
  // Create a client connection
  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.print(readString); //see what was captured

          //now output HTML data header

          client.println("HTTP/1.1 200 OK");
          client.println("Content-Type: text/html");
          client.println();


          client.println("<html>");
          client.println("<body>");
          client.println("<h2>Vpisi vrednosti RGB</h2>");
          client.println("<form>");
          client.println("  R:<br>");
          client.println("<input type='text' name='r'>");
          client.println("<br>");
          client.println("G:<br>");
          client.println("<input type='text' name='g'>");
          client.println("<br>");
          client.println("B:<br>");
          client.println("<input type='text' name='b'>");
          client.println("</form>");
          client.println("</body>");
          client.println("</html>");
          client.println("<INPUT TYPE=SUBMIT NAME='submit' VALUE='Send RGB'>");

          client.println("</FORM>");

          client.println("<BR>");

          delay(1);
          //stopping client
          client.stop();

          /////////////////////
          if (readString.length() >0) {
           int rIdx = readString.indexOf("r");
           int gIdx = readString.indexOf("g");
           int bIdx = readString.indexOf("b");

           int R = readString.substring(rIdx + 2, gIdx - 1).toInt();
           int G = readString.substring(gIdx + 2, bIdx - 1).toInt();
           int B = readString.substring(bIdx + 2).toInt();
           readString=""; //clears variable for new input
           Serial.println(R);
           Serial.println(G);
           Serial.println(B);
          }
        }
      }
    }
  }
}