#include <Servo.h>
int servopin =12;
Servo Servo1;
void setup() {
 Servo1.attach(servopin);
}

void loop() {
   Servo1.write(0);
  delay(5000);
  Servo1.write(90);
  delay(5000);
  Servo1.write(180);
  delay(5000);
}