#include <Servo.h>
Servo myservo;

void setup() {
  // put your setup code here, to run once:
myservo.attach(A0);
myservo.write(0);
}

void loop() {
  // put your main code here, to run repeatedly:
for(int i=0;i==180;i++)
{ myservo.write(i);
  delay(5000);

  }
  myservo.write(180);
 
for(int i=180;i==0;i--)
 {myservo.write(i);
  delay(5000);
   }
   myservo.write(0);
  
   }