#define MQ2_ANA 34 // GPIO34 for analog input on ESP32
#define MQ2_DIG 25 // GPIO25 for digital input on ESP32

void setup() {
  Serial.begin(115200); // ESP32 typically uses a higher baud rate for Serial
    Serial.print("Iniciando ");

  pinMode(MQ2_ANA, INPUT);
  pinMode(MQ2_DIG, INPUT);
}

void loop() {

  Serial.print("Analog: ");
  Serial.println(analogRead(MQ2_ANA));
  Serial.print("Digital: ");
  Serial.println(digitalRead(MQ2_DIG));
  delay(1000);
}