#define led_pin1 22
//#define led_pin2 23

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(led_pin1, OUTPUT);
  
}

void loop() {
  // put your main code here, to run repeatedly:
  for (int i=0;i<5;i++){
  digitalWrite(led_pin1,HIGH);
  delay(1000);
  
  digitalWrite(led_pin1, LOW);
  delay(1000); // this speeds up the simulation
  }
  digitalWrite(led_pin1, LOW);
  delay(5000);
}