int pot = 0;
void setup() {
  Serial.begin(115200);
  pinMode(12, OUTPUT);
  pinMode(14, OUTPUT);
  pinMode(27, OUTPUT);
}
void loop() {
  Serial.println(analogRead(2));
  delay(500);
  pot = map(analogRead(2),0,4095,0,3);
  Serial.println(pot);
  if(pot == 3){
    digitalWrite(12, LOW);
    digitalWrite(14, LOW);
    digitalWrite(27, HIGH);
  } 
  else if(pot == 2){
    digitalWrite(14, HIGH);
  }
  else if(pot == 1){
    digitalWrite(12, HIGH);
  }
  else{
    digitalWrite(12, LOW);
    digitalWrite(14, LOW);
    digitalWrite(27, LOW);
  }    
}