//22.11.4562 - Muhammad Guido Augusta

long bacaJarak (int triggerPin, int echoPin){
  pinMode(triggerPin, OUTPUT);
  digitalWrite(triggerPin, LOW);
  digitalWrite(triggerPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(triggerPin, LOW);
  pinMode(echoPin, INPUT);
  return pulseIn(echoPin, HIGH);
}
void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
}


void loop() {
  // put your main code here, to run repeatedly:
  int cm = 0; //reset cm ke e
  cm = (0.03446 * bacaJarak (7,8))/2;
  Serial.print(cm);
  Serial.println("cm");
  delay(500);
}