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

// Define the mutex
SemaphoreHandle_t mutex = NULL;

// Function prototypes
void Task1(void *pvParameters);
void Task2(void *pvParameters);

void setup() {
  // Create Mutex
  mutex = xSemaphoreCreateMutex();

  // Create Task 1
  xTaskCreate(Task1, "Task1", 10000, NULL, 1, NULL);

  // Create Task 2
  xTaskCreate(Task2, "Task2", 10000, NULL, 1, NULL);
}

void loop() {
  // Empty, tasks are running independently
}

void Task1(void *pvParameters) {
  while (1) {
    // Take Mutex
    if (xSemaphoreTake(mutex, portMAX_DELAY) == pdTRUE) {
      // Call Task 2
      xTaskCreate(Task2, "Task2", 10000, NULL, 1, NULL);
      
      // Release Mutex
      xSemaphoreGive(mutex);
    }

    // Delay for demonstration purposes
    vTaskDelay(pdMS_TO_TICKS(1000));
  }
}

void Task2(void *pvParameters) {
  // Request Mutex
  if (xSemaphoreTake(mutex, portMAX_DELAY) == pdTRUE) {
    // Call library function such as printf
    printf("Task 2 executed.\n");

    // Release Mutex
    xSemaphoreGive(mutex);
  }

  // Delete self after execution
  vTaskDelete(NULL);
}