void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(12, OUTPUT);
  pinMode(14, OUTPUT);
  pinMode(27, OUTPUT);
  pinMode(22, OUTPUT);
  pinMode(23, OUTPUT);
  pinMode(19, OUTPUT);
}

void loop() {
  digitalWrite(12, HIGH);
  digitalWrite(23, HIGH);
  delay(2000);
  digitalWrite(12, LOW);
  digitalWrite(23, LOW);
  digitalWrite(14, HIGH);
  digitalWrite(19, HIGH);
  delay(2000);
  digitalWrite(14, LOW);
  digitalWrite(19, LOW);
  digitalWrite(27, HIGH);
  digitalWrite(22, HIGH);
  delay(2000);
  digitalWrite(27, LOW);
  digitalWrite(22, LOW);
  delay(1000);
}