#include <Servo.h>
Servo angle;

void setup()
 {
   Serial.begin(9600);
   angle.attach(5);
  // put your setup code here, to run once:

}

void loop() {
  angle.write(0);
 delay(1000);
 angle.write(45);
 delay(1000);
 angle.write(90);
 delay(1000);
 angle.write(135);
 delay(1000);
 angle.write(180);
 delay(1000);
 angle.write(135);
 delay(1000);
 angle.write(180);
 delay(1000);
 angle.write(90);
 delay(1000);
 angle.write(45);
 delay(1000);
angle.write(0);
 delay(1000);
  // put your main code here, to run repeatedly:

}