float sensor = 0.0;
float distancia = 0.0;

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

void loop(){
      sensor = analogRead(0);
      sensor = sensor * 5.0 / 1024.0;
      distancia = 65*pow(sensor, -1.10);
      Serial.print(distancia);
      delay(250); 
}



