#include <Stepper.h>

const int stepsPerRevolution = 200; 
Stepper stepper(stepsPerRevolution, 2, 3, 4, 5); 

void setup() {
  stepper.setSpeed(50);
}

void loop() {
  // Putar motor stepper 90 derajat ke kanan, 2 kali
  for (int ito = 0; ito < 2; ito++) {
    stepper.step(50); 
    delay(2000); 
  }

  // Putar motor stepper 180 derajat ke kiri, 2 kali
  for (int ito = 0; ito < 2; ito++) {
    stepper.step(-100);  
    delay(2000); 
  }
}