#include <Servo.h>
int servoPin = 3;
Servo Servo1;

const int trigPin = 9;
const int echoPin = 10;
long duration;
int distance;

void setup() {
  // put your setup code here, to run once:
  
  Servo1.attach(servoPin);
  
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);

  duration = pulseIn(echoPin, HIGH);

  distance = duration * 0.034 / 2;

  Serial.print("Distance : ");
  Serial.println(distance);

  if(distance < 6){
    Servo1.write(0);
  }
  else if(distance >= 6){
    Servo1.write(180);
  }
}