const int  DIR =8 ; //board deiver
const int STEP =9 ;//board deiver
const int step_per_attc = 125;

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

}

void loop() {
digitalWrite(DIR, HIGH);
Serial.println("ATTC Motor Clokwise");

for (int i=0; i < step_per_attc ; i++) {
digitalWrite(STEP, HIGH);
delayMicroseconds(10000);
digitalWrite(STEP, LOW);
delayMicroseconds(10000);

}
delay(1000);
digitalWrite(DIR, LOW);
Serial.println("ATTC Motor AntiClokwise");//ทวนเข็มนาฬิกา
for (int i=0; i < step_per_attc ; i++) {
digitalWrite(STEP, HIGH);
delayMicroseconds(10000);
digitalWrite(STEP, LOW);
delayMicroseconds(10000);
}
delay(1000);
}