#include <Servo.h>
int trig=11;
int echo=12;
int time;
int distance;
Servo angle;
void setup() {
  angle.attach(5);
  Serial.begin(9600);
  pinMode(trig, OUTPUT);
  pinMode(echo, INPUT);


}

void loop() {
  digitalWrite(trig, LOW);
  delayMicroseconds(2);
  digitalWrite(trig, HIGH);
  delayMicroseconds(10);
  digitalWrite(trig, LOW);
  

  time = pulseIn(echo, HIGH);
  Serial.print("time = ");
  Serial.println(time);
  distance = time* 0.034/2;
  Serial.print("distance of the object = ");
  Serial.print(distance);
  Serial.println(" cm");
 if(distance<100 )
 {
   angle.write(90);
   
 }
  else{
    angle.write(0);
  }
}