#include "Ultrasonic.h"

Ultrasonic ultrasonic(8, 9);
int distance;

int Buz = 8;
void setup() {
  Serial.begin(9600);
  pinMode(Buz, OUTPUT);
  noTone(Buz);
}

void loop() {
  

  distance = ultrasonic.read();
  Serial.println(distance);


if(distance >= 200){
  tone(Buz, 100);
  delay(200);
  noTone(Buz);
  delay(200);
}
if(distance <= 100){
  tone(Buz, 100);
  delay(50);
  noTone(Buz);
  delay(50);

}if(distance >= 100){
   tone(Buz, 100);
   delay(100);
   noTone(Buz);
   delay(100);

}
  
}