#define pinled 12
#define pb 16

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(pinled, OUTPUT);
  pinMode(pb, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  bool state = digitalRead(pb);
  if (state == 1) {
    digitalWrite(pinled, HIGH);
    delay(100);
  }
  else if (state == 0) {
    digitalWrite(pinled, LOW);
    delay(100);
  }
  delay(10); // this speeds up the simulation
}