TaskHandle_t taskProcessButtonHandle;
const uint8_t BUTTON_PIN = 4;
const uint8_t LED_PIN = 2;

void IRAM_ATTR buttonISR() {
    BaseType_t xHigherPriorityTaskWoken = pdFALSE;
    vTaskNotifyGiveFromISR(taskProcessButtonHandle, &xHigherPriorityTaskWoken);
    if (xHigherPriorityTaskWoken) portYIELD_FROM_ISR();
}

void taskProcessButton(void *pvParams) {
    while (1) {
        if (ulTaskNotifyTake(pdTRUE, portMAX_DELAY)) {
            digitalWrite(LED_PIN, !digitalRead(LED_PIN));  // Alterna LED
            Serial.println("Botão pressionado!");
        }
    }
}

void setup() {
    Serial.begin(115200);    
    pinMode(LED_PIN, OUTPUT);
    pinMode(BUTTON_PIN, INPUT_PULLUP);
    attachInterrupt(digitalPinToInterrupt(BUTTON_PIN), buttonISR, FALLING);
    xTaskCreate(taskProcessButton, "ButtonTask", 2048, NULL, 2, &taskProcessButtonHandle);  // Prioridade 2 (alta)
}

void loop() {}