// Ultrasonic Sensor Code
const int trigPin = 12;
const int echoPin = 10;
// defines variables
long duration;
int distance;

void setup()
{
  pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
  pinMode(echoPin, INPUT); // Sets the echoPin as an Input
  Serial.begin(9600); // Starts the serial communication
}


void loop()
{
  // Clears the trigPin
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);

  // Sets the trigPin on HIGH state for 10 micro seconds
  digitalWrite(trigPin, HIGH);
  delay(500);
  digitalWrite(trigPin, LOW);

  // Reads the echoPin, returns the sound wave travel time in microseconds
  duration = pulseIn(echoPin, HIGH);
  // Calculating the distance
  distance = duration * 0.034 / 2;

  if (distance >= 40)
  {
    Serial.print("Distance = ");
    Serial.println(distance);
    Serial.println("Driver out of car, check for movement and temperature!!!!!");
  }
  else
  {
    Serial.print("Distance: ");
    Serial.println(distance);
    Serial.println("Driver Inside car, all good");
  }
}