int potenciometro;
void setup(){
    pinMode(25,OUTPUT);
    pinMode(26,OUTPUT);
    pinMode(27,OUTPUT);
    pinMode(14,OUTPUT);
}
void loop(){
    potenciometro=analogRead(35);
    if(potenciometro<1024){
    digitalWrite(25,HIGH);
    digitalWrite(26,LOW);
    digitalWrite(27,LOW);
    digitalWrite(14,LOW);
    }
    else if((potenciometro<2048) && (potenciometro>1024)){
    digitalWrite(25,LOW);
    digitalWrite(26,HIGH);
    digitalWrite(27,LOW);
    digitalWrite(14,LOW);
    }
    else if((potenciometro<3072) && (potenciometro>2048)){
    digitalWrite(25,LOW);
    digitalWrite(26,LOW);
    digitalWrite(27,HIGH);
    digitalWrite(14,LOW);
    }
    else if((potenciometro<4095) && (potenciometro>3072)){
    digitalWrite(25,LOW);
    digitalWrite(26,LOW);
    digitalWrite(27,LOW);
    digitalWrite(14,HIGH);
    }
    }