// maestro 

#define LED_PIN PA2
#define LED_PIN PA3
#define LED_PIN PA4
#define BTN_PIN PA1

bool ledState = false;
bool lastButtonState = HIGH;





void setup() {
  Serial.begin(9600);
  Serial.println("mensaje1: ");
  pinMode(PA2, OUTPUT);
  pinMode(PA3, OUTPUT);
  pinMode(PA4, OUTPUT);
  pinMode(PA1, INPUT_PULLUP);
}

void loop() {
  bool buttonState = digitalRead(PA1);

  if (lastButtonState == HIGH && buttonState == LOW) {
    ledState = !ledState;
    digitalWrite(PA2, ledState);
    delay(200);
     digitalWrite(PA3, ledState);
    delay(200);
     digitalWrite(PA4, ledState);
    delay(200);
  }

  lastButtonState = buttonState;
}