servo_tester.ino

#include <Servo.h>

Servo myservo;

void setup()
{
  myservo.attach(14);
  myservo.write(90);  // set servo to mid-point
}

void loop() {
  for (int i = 0; i < 180; i += 15) {
    myservo.write(i);
    delay(1000);
  }
}