#define LED 2
#define BT 5
#define ADC_PIN 34
#define TEMPO_BTN 50

SemaphoreHandle_t semaforo;

TaskHandle_t vTaskTrataBTHandle;
TaskHandle_t vTaskADCHandle;
TaskHandle_t vTaskLEDHandle;

unsigned int ultima_intrr = 0;

void vTaskTrataBT(void * pvParameters){

  int contador = 0;

  while(1){
    xSemaphoreTake(semaforo,portMAX_DELAY);
    Serial.println("x: " + String(contador++));
  }

}

void vTaskLED(void *pvParameters) {
  for (;;) {
    digitalWrite(LED,HIGH);
    vTaskDelay(pdMS_TO_TICKS(100));
    digitalWrite(LED,LOW);
    vTaskDelay(pdMS_TO_TICKS(1000));
  }
}

void vTaskADC(void * pvParameters){

  int adcValue;

  while(1){
   xSemaphoreTake(semaforo,portMAX_DELAY);
   adcValue = analogRead(34);
   Serial.println("Valor do ADC: " + String(adcValue));
   Serial.println(" ");
  }
}


void ISR_CallBack(){
  unsigned int intrr_atual = millis();
  if (intrr_atual - ultima_intrr > TEMPO_BTN) {
    BaseType_t xHighPriorityTaskWoken = pdTRUE;

    xSemaphoreGiveFromISR(semaforo,&xHighPriorityTaskWoken);

    if(xHighPriorityTaskWoken == pdTRUE)
    {
      portYIELD_FROM_ISR();
    }
  }
  ultima_intrr = intrr_atual;
}

void setup() {
  Serial.begin(9600);
  pinMode(LED,OUTPUT);
  pinMode(BT,INPUT_PULLUP);
  attachInterrupt(digitalPinToInterrupt(BT),ISR_CallBack,FALLING);

  semaforo = xSemaphoreCreateBinary();
  xTaskCreate(vTaskTrataBT, "Task BT",configMINIMAL_STACK_SIZE + 1024,NULL,3,&vTaskTrataBTHandle);  
  xTaskCreate(vTaskADC,"Task ADC",configMINIMAL_STACK_SIZE + 1024, NULL,1,&vTaskADCHandle);
  xTaskCreate(vTaskLED,"Task LED",configMINIMAL_STACK_SIZE + 1024, NULL,10,&vTaskLEDHandle);
  
}

void loop() {
  
}