#include <Servo.h>

Servo myServo;  // create servo object

void setup() {
  myServo.attach(16);  // attach servo to pin D9
}

void loop() {
  // Rotate from 0° to 180°
  // for (int angle = 0; angle <= 180; angle += 10) {
  //   myServo.write(angle);
  //   delay(500);
  // }

  // // Rotate back from 180° to 0°
  // for (int angle = 180; angle >= 0; angle -= 10) {
  //   myServo.write(angle);
  //   delay(500);
  // }
   myServo.write(0);
   delay(1000);
   myServo.write(90);
   delay(1000);
   myServo.write(180);
   delay(1000);
}