const int DIR = 6;
const int STEP = 7;

// Alatnya gak lengkap pak / mas, jadi codingan & rangkaian seadanya

void setup() {
  pinMode(STEP, OUTPUT); 
  pinMode(DIR, OUTPUT);   
  Serial.begin(115200);
}

void loop() {
  digitalWrite(DIR, HIGH); 
  for(int i = 0; i < 50; i++){
    
    digitalWrite(STEP, HIGH);
    delayMicroseconds(2000);
    digitalWrite(STEP, LOW);
    delayMicroseconds(2000);
  }
  Serial.println("90 Derajat ke kanan");
  delay(1000);
  for(int i = 50; i < 100; i++){
    
    digitalWrite(STEP, HIGH);
    delayMicroseconds(2000);
    digitalWrite(STEP, LOW);
    delayMicroseconds(2000);
  }
  Serial.println("90 Derajat ke kanan");
  delay(1000);
  digitalWrite(DIR, LOW);
  for(int i = 100; i < 200; i++){
    
    digitalWrite(STEP, HIGH);
    delayMicroseconds(2000);
    digitalWrite(STEP, LOW);
    delayMicroseconds(2000);
  }  
  Serial.println("180 Derajat ke kiri");
  delay(1000);
  for(int i = 200; i < 300; i++){
    
    digitalWrite(STEP, HIGH);
    delayMicroseconds(2000);
    digitalWrite(STEP, LOW);
    delayMicroseconds(2000);
  } 
  Serial.println("180 Derajat ke kiri");
  delay(1000);
}