#include<Servo.h>
int servopin=11;
Servo Servol;
void setup() {
  // put your setup code here, to run once:
Servol.attach(servopin);
}

void loop() {
  // put your main code here, to run repeatedly:
Servol.write(0);
delay(2000);
Servol.write(90);
delay(2000);
Servol.write(180);
delay(2000);
}