ARABA 2

void setup() {pinMode(11,OUTPUT);

pinMode(10,OUTPUT);

pinMode(9,OUTPUT);

pinMode(8,OUTPUT);

pinMode(3,INPUT);

pinMode(13,OUTPUT);

Serial.begin(9600);

// put your setup code here, to run once:

}

void loop() {analogWrite(5,250);

analogWrite(6,250);

digitalWrite(13,HIGH);

delayMicroseconds(10);

digitalWrite(13,LOW);

int a =pulseIn(3,HIGH);

int b = a*0.034/2;

Serial.print("mesafe=");

Serial.println(b);

delay(250);

if (b>20){digitalWrite(11,HIGH);digitalWrite(8,HIGH);}

else {digitalWrite(11,LOW);digitalWrite(8,LOW);}

// put your main code here, to run repeatedly:

}