//https://audio.online-convert.com/convert-to-wav

#include <Servo.h>
#include <NewPing.h>
int x=0;



int trig = 2 ; 
int echo = 3 ; 
int max_dis = 200 ; 
NewPing sonic (trig , echo , max_dis);
Servo myservo;  // create servo object to control a servo
void setup() {
  
 Serial.begin(9600); 
 myservo.attach(5);  // attaches the servo on pin 9 to the servo object
}

void loop() {
int us = sonic.ping();
int dis = us / US_ROUNDTRIP_CM ;
 myservo.write(0);Serial.println(x);
if(dis<=50&&x==0){  

}
delay(2000);

x=1;
 myservo.write(90);Serial.println(x);
 if(dis<=50&&x==1){ 


 }
delay(2000);

  x=2;
 myservo.write(90);Serial.println(x);
if(dis<=50&&x==2){  



 }
 delay(2000);
x=0;
}