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

void loop() {
 
  digitalWrite(14, HIGH);
  delay(1000);
  digitalWrite(14, LOW);
  Serial.println("switch on ");
 
    Serial.println("switch off");
    digitalWrite(14, LOW);
    // this speeds up the simulation
  }