void setup() {
  int switchcase;
  switchcase=digitalRead(4);
  if(switchcase=1)
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(26,OUTPUT);
  pinMode(25,OUTPUT);
  pinMode(27,OUTPUT);
  Serial.println("Hello, ESP32!");
}

void loop() {
  digitalWrite(26,HIGH);
  digitalWrite(25,HIGH);
  digitalWrite(27,HIGH);
  // put your main code here, to run repeatedly:
  delay(1000); // this speeds up the simulation
}