int pinBtn1 = 12;
int pinBtn2 = 14;

unsigned long DEBOUNCE_MS = 50;
unsigned long lastT1 = 0;
unsigned long lastT2 = 0;

void setup() {
  Serial.begin(115200);
  pinMode(pinBtn1, INPUT);
  pinMode(pinBtn2, INPUT);
  Serial.println("Listo para leer botones (presione para estado 1)...");
}

void loop() {
  unsigned long now = millis();

  if (now - lastT1 > DEBOUNCE_MS) {
    if (digitalRead(pinBtn1) == HIGH) {
      Serial.println("Boton 1 PRESIONADO");
      lastT1 = now;
    }
  }

  if (now - lastT2 > DEBOUNCE_MS) {
    if (digitalRead(pinBtn2) == HIGH) {
      Serial.println("Boton 2 PRESIONADO");
      lastT2 = now;
    }
  }

  // Un solo valor combinado para el plotter
  bool presionado = (digitalRead(pinBtn1) == HIGH) || (digitalRead(pinBtn2) == HIGH);
  Serial.println(presionado ? 3.3 : 0.0);

  delay(10);
}