SKETCH YANG PERLU DIKETIK:
const int numLED = 4;
const int pinLED[numLED] = {8,9,10,11};
void setup() {
for(int i=0; i<4; i++){
pinMode(pinLED[i], OUTPUT);
}
}
void loop() {
for(int i=0; i<4; i++){
digitalWrite(pinLED[i], HIGH);
delay(500);
}
for(int i=0; i<4; i++){
digitalWrite(pinLED[i], LOW);
delay(500);
}
}