JSN-SR04T Su Geçirmez Ultrasonik Mesafe Sensörü

const int trigPin = 12;
const int echoPin = 11;

void setup() {
  Serial.begin(9600);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
}

void loop() {
  digitalWrite(trigPin, LOW);
  delayMicroseconds(5);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(20);
  digitalWrite(trigPin, LOW);

  long duration = pulseIn(echoPin, HIGH);
  float distance = (duration * 0.0343) / 2;

  if (distance >= 20 && distance <= 600) {
    Serial.print("Mesafe: ");
    Serial.print(distance);
    Serial.println(" cm");
  } else {
    Serial.println("Kör nokta veya kapsama dışı (<20cm ya da >600cm)");
  }
  delay(150);
}