#include <Arduino.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
// #include "driver/gpio.h"
#include "freertos/semphr.h"

void taskSerial1(void * pvParameters);
void taskSerial2(void * pvParameters);

SemaphoreHandle_t Binary_Semaphore;

void setup()
  {
    Serial.begin(9600);
    xTaskCreate(&taskSerial1, "taskSerial1", 4096, NULL, 1, NULL);
    xTaskCreate(&taskSerial2, "taskSerial2", 4096, NULL, 1, NULL);
    Binary_Semaphore = xSemaphoreCreateBinary();
    //Semaphore Give
    //Semaphore Take
    xSemaphoreGive(Binary_Semaphore);

  }
void taskSerial1(void * pvParameters)
{
  for(;;)
  {
    xSemaphoreTake(Binary_Semaphore, portMAX_DELAY); // wait forever
    Serial.println("I am in task Serial 1");
    xSemaphoreGive(Binary_Semaphore);
    vTaskDelay(30/portTICK_PERIOD_MS);
    
  }
}

void taskSerial2(void * pvParameters)
{
  for(;;)
  {
    xSemaphoreTake(Binary_Semaphore, portMAX_DELAY);
    Serial.println("I am in task Serial 2");
    xSemaphoreGive(Binary_Semaphore);
    vTaskDelay(30/portTICK_PERIOD_MS);
  }
}

void loop(){}