#include <Servo.h>
Servo omar;
void setup() {
  // put your setup code here, to run once:
omar.attach(3);
}

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