#include <Servo.h>
#define servo 11

Servo s;

void setup() {
  s.attach(servo);
}

void loop() {
 s.write(0);
 delay(2000);
  s.write(45);
 delay(2000);
 s.write(90);
 delay(2000);
  s.write(120);
 delay(2000);
 s.write(150);
 delay(2000);
  s.write(180);
 delay(2000);
  s.write(270);
 delay(2000);
}