Tutorial Arduino

ini adalah sketch Arduino mengunakan sensor ultrasonic, lampu dan buzer

#define trigPin 7
#define echoPin 6

void setup()
{
  // put your setup code here, to run once:
Serial.begin(9600);
pinMode(trigPin,OUTPUT);
pinMode(echoPin,INPUT);

pinMode(13,OUTPUT);
pinMode(12,OUTPUT);
}

void loop()
{
  // put your main code here, to run repeatedly:
long duration, distance;
digitalWrite(trigPin,LOW);
delay (2);
digitalWrite(trigPin,HIGH);
delay(10);
digitalWrite(trigPin,LOW);
duration = pulseIn(echoPin,HIGH);
distance = (duration/2) /29.1;

if (distance >= 25)
{
  digitalWrite(13,LOW);
  digitalWrite(12,LOW);
}
if (distance <=15)
{
  digitalWrite(13,HIGH);
  digitalWrite(12,HIGH);
  delay(100);
  digitalWrite(13,LOW);
  digitalWrite(12,LOW);
  delay(100);
}
}