void setup() {
  Serial.begin(115200);
  pinMode(5, OUTPUT);
  pinMode(17, OUTPUT);
  pinMode(16, OUTPUT);
  pinMode(26, OUTPUT);
  pinMode(27, OUTPUT);
  pinMode(14, OUTPUT);
}

void loop() {
  digitalWrite(5, HIGH);
  digitalWrite(26, HIGH); 
  digitalWrite(14, LOW);
  digitalWrite(16, LOW);
  delay(3000);
  digitalWrite(17, HIGH);
  digitalWrite(27, HIGH);
  digitalWrite(5,LOW);
  digitalWrite(26,LOW); 
  delay(3000);
  digitalWrite(14, HIGH);
  digitalWrite(16, HIGH);
  digitalWrite(17, LOW);
  digitalWrite(27,LOW); 
  delay(3000);
}