void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(12,OUTPUT);
  pinMode(19,OUTPUT);
  pinMode(13,OUTPUT);
}

void loop() {
  digitalWrite(13, HIGH);
  delay(5000);
  digitalWrite(13,LOW);
  digitalWrite(19, HIGH);
  delay(4000);
  digitalWrite(19, LOW);
  digitalWrite(12, HIGH);
  delay(5000);
  digitalWrite(12, LOW);
  
  
}