void setup() {
  Serial.begin(115200);
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
}

void loop() {
  int pot = analogRead(A0);
  pot = map(pot, 0, 1023, 1, 10);
  Serial.println(pot);
  if (pot <= 3) digitalWrite(3, HIGH);
  if (pot > 3 && pot <= 6) digitalWrite(2, HIGH);
  if (pot > 6) digitalWrite(4, HIGH);
  delay(200);
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  /*switch(pot) {
    case 1:{
      Serial.println("zelena");
      break;
    }
    case 2:{
      Serial.println("Rdeča");
      break;
    }
    case 3:{
      Serial.println("Rumena");
    }
  }
  */
}