TELOO

// Sharp IR GP2Y0A41SK0F Distance Test
// http://tinkcore.com/sharp-ir-gp2y0a41-skf/

#define sensor A0 // Sharp IR GP2Y0A41SK0F (4-30cm, analog)

void setup() {
  Serial.begin(9600); // start the serial port
  pinMode(2, INPUT_PULLUP);
}

void loop() {
  int tombol = digitalRead(2); // baca pushbutton value
  if (tombol == LOW) {
    int rata2, persen, var;
    float fo, fc, volts,distancefo, distance;
    fc= 4;
    rata2 = 0;


      for (int i=0; i<200; i++) {
      Serial.println("Mendeteksi Full Open");
      volts = analogRead(sensor)*0.0048828125;  // value from sensor * (5/1024)
      distancefo = 13*pow(volts, -1)-1; // worked out from datasheet graph
      rata2 = rata2 + distancefo;
      delay (25); // tunggu 25 ms each read
      distancefo = rata2/200;
      fo= distancefo;
      }
   while (1){
              volts = analogRead(sensor)*0.0048828125;  // value from sensor * (5/1024)
              distance = 13*pow(volts, -1)-1; // worked out from datasheet graph
              persen = (distance-fc)/(fo-fc)*100;
              delay (500);
              Serial.println (persen);
             }// WHILE SEK IKI KOK MUK PISAN METU OUTPUT PERSEN E SHIEEEET FAAQ

  }
  else {
    Serial.println ("Posisikan valve pada Full Open");
  }
}