#include <Stepper.h>
const int turn = 100;
Stepper myturn(turn, 3, 1, 0, 2);
void setup() {
  // put your setup code here, to run once:
  myturn.setSpeed(60);
}

void turn_90(int x)
{
  for (int i=0;i<x;i++)
  {
    myturn.step(turn/2);
    delay(2000);
  }
}

void turn_180(int x)
{
  for (int i=0;i<x;i++)
  {
    myturn.step(-turn);
    delay(2000);
  }
}

void loop() {
  // put your main code here, to run repeatedly:
  turn_90(2); //2 kali berputar sebanyak 90 derajat ke kanan
  turn_180(2); //2 kali berputar sebanyak 180 derajat ke kiri
  
}