SKETCH YANG PERLU DIKETIK:
const int numLED = 6;
const int pinLED[numLED] = {2,3,4,5,6,7};
void setup() {
for(int i=0; i<6; i++){
pinMode(pinLED[i], OUTPUT);
  }
}
void loop() {
for(int i=0; i<6; i++){
digitalWrite(pinLED[i], LOW);
}
delay(100);
for(int i=0; i<6; i++){
digitalWrite(pinLED[i], HIGH);
delay(100);
  }
}
