int led=23;
int pb=13;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(led,OUTPUT);
  pinMode(pb,INPUT_PULLUP);
}

void loop() {
  // put your main code here, to run repeatedly:
  // this speeds up the simulation
  if(digitalRead(pb)==LOW){
    digitalWrite(led,HIGH);
    delay(5000);
  }
  else{
    digitalWrite(led,LOW);
  }
}