Parqueadero

 

https://www.tinkercad.com/things/lNHT8cvyQqd-sensor-de-distancia-3-bombillos-led/editel?sharecode=wpDXmp1UR7kZuX2_c5jyfQ5oxfrnJZFnR72QLoP5NIc

Codigo: 

// C++ code

//

int Distancia = 0;

long readUltrasonicDistance(int triggerPin, int echoPin)

{

  pinMode(triggerPin, OUTPUT);  // Clear the trigger

  digitalWrite(triggerPin, LOW);

  delayMicroseconds(2);

  // Sets the trigger pin to HIGH state for 10 microseconds

  digitalWrite(triggerPin, HIGH);

  delayMicroseconds(10);

  digitalWrite(triggerPin, LOW);

  pinMode(echoPin, INPUT);

  // Reads the echo pin, and returns the sound wave travel time in microseconds

  return pulseIn(echoPin, HIGH);

}

void setup()

{

  Serial.begin(9600);

  pinMode(11, OUTPUT);

  pinMode(9, OUTPUT);

  pinMode(10, OUTPUT);

}

void loop()

{

  Distancia = 0.01723 * readUltrasonicDistance(6, 5);

  Serial.println(Distancia);

  delay(300); // Wait for 300 millisecond(s)

  if (Distancia < 130) {

    digitalWrite(11, HIGH);

  } else {

    digitalWrite(11, LOW);

  }

  if (Distancia > 158) {

    digitalWrite(9, HIGH);

  } else {

    digitalWrite(9, LOW);

  }

  if (Distancia > 130 && Distancia < 158) {

    digitalWrite(10, HIGH);

  } else {

    digitalWrite(10, LOW);

  }

}