const int jumlahLED = 8; 
int ledPin[jumlahLED] = {22, 23, 24, 25, 26, 27, 28, 29}; 

void setup() {

  for (int i = 0; i < jumlahLED; i++) {
    pinMode(ledPin[i], OUTPUT);
  }
}

void loop() {

  for (int i = 0; i < jumlahLED; i++) {
    digitalWrite(ledPin[i], HIGH); 
    delay(200);                  
    digitalWrite(ledPin[i], LOW); 
  }

  
}