#include <Servo.h>


const int analogInPin = A0;
int sensorValue = 0;
int servoPin = 9;
int i = 0;


Servo servo;

void setup() {

  servo.attach(servoPin);
  Serial.begin(9600);
}

void loop() {
  sensorValue = analogRead(analogInPin);
  Serial.println(sensorValue);

  if (sensorValue < 600) {
     for (int i = 0; i<=180; i++) {
      servo.write(i);
      delay(100);
      Serial.println("object detected");

     }
  }
  servo.write(i);
  
}