//led fire effect

int red=9, orange=10, yellow=11;
void setup() {
  // put your setup code here, to run once:
  pinMode(red, OUTPUT);
  pinMode(orange, OUTPUT);
  pinMode(yellow, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  analogWrite(red, random(255));
  analogWrite(orange, random(255));
  analogWrite(yellow, random(255));
  delay(random(300));
}