#include<Servo.h>
Servo myservo;
int potentioPIN =A0;
int value;
void setup() {
  myservo.attach(9);

}

void loop() {
  value=analogRead(potentioPIN);
  value=map(value,0,1023,0,360);
  myservo.write(value);
  delay(1000);
  value=map(value,1023,0,360,0);
  myservo.write(value);
  delay(1000);
}