#include <Ultrasonic.h>

#define BUZZER 13 
Ultrasonic ultrasonic(9, 8);

int distance;

void setup() {
  pinMode(BUZZER, OUTPUT);
}

void loop() {
  // Pass INC as a parameter to get the distance in inches
  distance = ultrasonic.read();

  if(distance > 200){
    digitalWrite(BUZZER, HIGH);
    delay(100);
    digitalWrite(BUZZER, LOW);
    delay(100);
  }
  else {
    digitalWrite(BUZZER, LOW);
  }
}