int PWM_PIN = 5;

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

void loop() {
  // put your main code here, to run repeatedly:
  int valuePWM = 0;
  analogWrite(PWM_PIN, valuePWM);
  delay(200); // this speeds up the simulation
  valuePWM = 64;
  analogWrite(PWM_PIN, valuePWM);
  delay(200);
  valuePWM = 127;
  analogWrite(PWM_PIN, valuePWM);
  delay(200);
  valuePWM = 191;
  analogWrite(PWM_PIN, valuePWM);
  delay(200);
  valuePWM = 255;
  analogWrite(PWM_PIN, valuePWM);
  delay(200);
}