SKETCH YANG PERLU DIKETIK:
// pasang 11 lampu led dari pin 2 sampai 12
void setup()
{
int pinLED;
for(pinLED = 2; pinLED < 13; pinLED ++)
{pinMode(pinLED, OUTPUT);}
}
void loop()
{
int LED;
for(LED = 13; LED > 1; LED --)
{digitalWrite(LED, HIGH);
delay(20);
digitalWrite(LED, LOW);
delay(20);}
}