void setup() {
  Serial.begin(115200);
  Serial.println("Hello, ESP32");

  pinMode(23, OUTPUT);           // Red LED
  pinMode(22, OUTPUT);           // Blue LED
  pinMode(32, INPUT_PULLDOWN);   // Pushbutton
}

void loop() {
  // Switch Blue LED (GPIO 22) based on Pushbutton (GPIO 32)
  digitalWrite(22, digitalRead(32));

  // Toggle Red LED (GPIO 23) every second
  digitalWrite(23, !digitalRead(23)); // Toggle state
  delay(1000); // 1-second delay
}