#include <NewPing.h>//install it
#include <Servo.h>//install it
Servo myservo;
#define triggerPin 7
#define echoPin 8
#define maxDistance 200
//int a=0;
int buzz=5;
#define led 2
#define Gled 4
NewPing anyName(triggerPin, echoPin, maxDistance);
 int dist ;


void setup() {
  Serial.begin(9600);
  myservo.attach(3);
  myservo.write(0);
  pinMode(led,OUTPUT);
    pinMode(Gled,OUTPUT);

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

}

void loop() {
  int dist = anyName.ping_cm();
  delay(50);

  Serial.print(dist);
  Serial.println("cm");
  delay(100);
  if(dist<60 && dist > 0){   //anybody less than 60cm
    
       myservo.write(90);  // Turn Servo back to center position (90 degrees)
       digitalWrite(led, HIGH);
       digitalWrite(buzz, HIGH);
              digitalWrite(Gled, LOW);

       delay(100);
       digitalWrite(led, HIGH);
       digitalWrite(buzz, LOW);
      digitalWrite(Gled, LOW);

       delay(100);
    if(dist==0){
             myservo.write(90);  

    }
   delay(5000);
   if(dist>60){
    for(int pos = 90; pos>=0; pos--){
    myservo.write(pos);
    delay(500);
  }
   }
   
  
  }
    else{
    
      myservo.write(0);
      digitalWrite(Gled, HIGH); 
      digitalWrite(buzz, LOW);    
    }
}