Arduino ile park sernsörü yapımı

arduino_park_sensoru_hc-sr04.ino

#define trig_Pin 8
#define echo_Pin 9
#define buzzer_Pin 10
long mesafe = 0;
long sure = 0;
int gosterge = 0;
void setup() {
  for (int i = 2; i < 7; i++)
  {
    pinMode(i, OUTPUT);
  }
  pinMode(trig_Pin, OUTPUT);
  pinMode(echo_Pin, INPUT);
  Serial.begin(9600);
}
void loop() {
  buzzer_uyari(mesafe_olc() * 8);
  gosterge = mesafe_olc() / 10 + 1;
  for (int i = 7; i > gosterge; i--)
  {
    digitalWrite(i, HIGH);
  }
  for (int i = gosterge; i >= 2; i--)
  {
    digitalWrite(i, LOW);
  }
}
int mesafe_olc() {

  digitalWrite(trig_Pin, HIGH);
  delayMicroseconds(1000);
  digitalWrite(trig_Pin, LOW);
  sure = pulseIn(echo_Pin, HIGH);
  mesafe = (sure / 29.1) / 2;
  if (mesafe > 50)
    mesafe = 50;
  Serial.print("Olculen Mesafe = ");
  Serial.print(mesafe);
  Serial.println(" cm ");
  return mesafe;
}
void buzzer_uyari(int bekle)
{
  tone(buzzer_Pin, 500);
  delay(bekle);
  noTone(buzzer_Pin);
  delay(bekle);
}