---

int randNumber;
int LED_PIN = 8;

void setup() {
  Serial.begin (9600);
  randomSeed (analogRead(0));
  randNumber = random(30);
Serial.println(randNumber);
pinMode(LED_PIN, OUTPUT);
}
void loop(){
  digitalWrite(LED_PIN,HIGH);
  delay(randNumber);
  digitalWrite (LED_PIN, LOW);
delay(randNumber);


}