Untitled

#include <SPI.h>
#include <Ethernet.h>

byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
IPAddress ip(192, 168, 1, 177);
EthernetServer server(80);
String readString;

const int statusPin = 8;
const int tempSensor = A0;
const int lysSensor = A1;
const int buzzerPin = 9;
const int blaaLysPin = 7;
const int rodLysPin = 6;

void setup() {
  Serial.begin(9600);

  pinMode(statusPin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);
  pinMode(blaaLysPin, OUTPUT);
  pinMode(rodLysPin, OUTPUT);

  Ethernet.begin(mac);
  Serial.print("server is at ");
  Serial.println(Ethernet.localIP());
}

int loggeData = 1;

void loop() {
  int tempSensorVerdi = analogRead(tempSensor);
  float volt = (tempSensorVerdi / 1024.0) * 5.0;
  float temperatur = (volt - .5) * 100;

  float lysSensorVerdi = analogRead(lysSensor);

  EthernetClient client = server.available();
  if (client) {
    while (client.connected()) {
      if (client.available()) {
        char c = client.read();
        Serial.print(c);

        if (readString.length() < 100) {
          readString += c;
        }

        if (c == '\n') {
          Serial.println(readString);
          client.println("HTTP/1.1 200 OK");
          client.println("Content-Type: text/html");
          client.println("Connection: close");
          client.println("Refresh: 5");  // refresh the page automatically every 5 sec
          client.println();
          client.println("<!DOCTYPE HTML>");
          client.println("<html>");
          client.println("<head>");
          client.println("<title>Lab-7</title>");
          client.println("<meta charset=\"utf-8\"/>");
          client.println("</head>");
          client.println("<body>");
          if (loggeData == 1) {
            client.println("Temperatur: ");
            client.println(temperatur);
            client.println(" C");
            client.println("<br />");
            client.println("Lys: ");
            client.print(lysSensorVerdi);
            client.println("<br /><br />");

            digitalWrite(statusPin, HIGH);
          }
          else {
            digitalWrite(statusPin, LOW);
          }
          client.println("<a href=\"/?monitoron\"\"><button>Skru på målinger</button></a>");
          client.println("<a href=\"/?monitoroff\"\"><button>Skru på målinger</button></a>");
          client.println("<br />");
          client.println("<button id=\"btnBlaa\">Blå LED</button>");
          client.println("</body>");
          client.println("</html>");

          delay(1);
          client.stop();

          if (readString.indexOf("?monitoron") > 0) {
            loggeData = 1;
          }
          if (readString.indexOf("?monitoroff") > 0) {
            loggeData = 0;
          }
          readString = "";
      }
    }
  }

}
}