HC-SR04 ULTRASONİK SES SENSÖRÜ İLR MESAFE ÖLÇÜMÜ

https://youtu.be/lnEvS9UFKes

const int trig = 12;
const int echo = 11;

long sure;
int uzaklik;

void setup() {
  pinMode(trig, OUTPUT);
  pinMode(echo, INPUT);
  Serial.begin(9600);
}

void loop() {
  digitalWrite(trig, 0);
  delayMicroseconds(10);
  digitalWrite(trig, 1);
  delayMicroseconds(10);

  sure = pulseIn(echo, 1);
  uzaklik = (0.0343 * sure) / 2;

  Serial.print(uzaklik);
  Serial.println(" cm");
}