LED 주사위

LED 랜덤 점멸을 이용한 아두이노 주사위입니다.

스케치는 다음과 같습니다.

int ledPins[] = {4,5,6,7}; long ran; int state; int time = 2000; void setup() {   for(int i=0; i<5; i++)   {     pinMode(ledPins[i],OUTPUT);   }   randomSeed(analogRead(0));   ran = random(1,7);   if(ran==1)   {     digitalWrite(ledPins[0], HIGH);   }   if(ran==2)   {     digitalWrite(ledPins[0], HIGH);     digitalWrite(ledPins[1], HIGH);   }   if(ran==3)   {     digitalWrite(ledPins[1], HIGH);     digitalWrite(ledPins[2], HIGH);   }   if(ran==4)   {     digitalWrite(ledPins[2], HIGH);     digitalWrite(ledPins[3], HIGH);   }   if(ran==5)   {     digitalWrite(ledPins[1], HIGH);     digitalWrite(ledPins[2], HIGH);     digitalWrite(ledPins[3], HIGH);   }   if(ran==6)   {     digitalWrite(ledPins[0], HIGH);     digitalWrite(ledPins[1], HIGH);     digitalWrite(ledPins[2], HIGH);     digitalWrite(ledPins[3], HIGH);   } } void loop() { }