void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(14, OUTPUT);
  pinMode(19, OUTPUT);
  pinMode(15, OUTPUT);
  pinMode(12, INPUT);
}

void loop() {
  int switchcase = digitalRead(12)
  if(switchcase == 1)
  {
  Serial.println("switch on");
  digitalWrite(14, HIGH);
  delay(1000);
  digitalWrite(14, LOW);
  delay(800);
  digitalWrite(19, HIGH);
  delay(1000);
  digitalWrite(19,LOW);
  delay(800);
  digitalWrite(15, HIGH);
  delay(3000);
  digitalWrite(15, LOW);
  delay(800);
  }
  else
   {
    Serial.println("switch off");
    digitalWrite(14, LOW);
    digitalWrite(19, LOW);
    digitalWrite(15, LOW);
   }
  // put your main code here, to run repeatedly:
  // this speeds up the simulation
}