int pins[7] = {2, 3, 4, 5, 6, 7, 8};

int pinsEf[7] = {3, 4,2, 5, 6, 8, 7 };

void setup() {
  for (int i = 0; i < 8; i++)
    pinMode(pins[i], OUTPUT);

    Serial.begin(115200);
    Serial.println("a");



}

void loop() {
  
  
  off();
  delay(200);

  effect();

  delay(200);





}

void off()
{
  for (int i = 0; i < 8; i++)
    digitalWrite(pins[i], HIGH);
}

void effect()
{
  for (int i = 0; i < 6; i+=3)
  {
    digitalWrite(pinsEf[i], LOW);
    Serial.println(i);
    delay(2000);
    digitalWrite(pinsEf[i+1], LOW);
    Serial.println(i+1);
    digitalWrite(pinsEf[i+2], LOW);
    Serial.println(i+2);
    delay(2000);
  }

  digitalWrite(pinsEf[6], LOW);
  Serial.println(pinsEf[6]);
  delay(200);
}