void setup() {
  
  pinMode(12, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(12, HIGH);
  delay(500); // this speeds up the simulation
  digitalWrite(12, LOW);
  delay(250); // this speeds up the simulation
  digitalWrite(14, HIGH);
  delay(1000); // this speeds up the simulation
  digitalWrite(14, LOW);
  delay(650); // this speeds up the simulation

}