//github.com/dibyasn
//Toggling LEDs using RTOS

#include <Arduino_FreeRTOS.h>  // Include FreeRTOS library to use RTOS features like task management

// Pin definitions for LEDs
#define LED1 10  // Pin 10 controls LED1
#define LED2 5   // Pin 5 controls LED2

void setup() {
  pinMode(LED1, OUTPUT);  // Set pin 10 as an OUTPUT for LED1
  pinMode(LED2, OUTPUT);  // Set pin 5 as an OUTPUT for LED2

  // Create two tasks, one for each LED, to run independently
  // TaskLED1: Controls LED1, toggling it every 500ms
  xTaskCreate(TaskLED1, "TaskLED1", 128, NULL, 1, NULL);  

  // TaskLED2: Controls LED2, toggling it every 500ms
  xTaskCreate(TaskLED2, "TaskLED2", 128, NULL, 1, NULL);  
}

void loop() {
  // The loop function remains empty because the tasks are running independently.
  // FreeRTOS handles the scheduling of tasks in the background.
}

// Task to toggle LED1
void TaskLED1(void *pvParameters) {
  (void) pvParameters;  // Avoid compiler warnings for unused parameter

  for (;;) {  // Infinite loop to keep the task running
    digitalWrite(LED1, !digitalRead(LED1));  // Toggle the state of LED1
    vTaskDelay(500 / portTICK_PERIOD_MS);  // Wait for 500 ms before toggling again
    // The vTaskDelay function allows other tasks to run while waiting
  }
}

// Task to toggle LED2
void TaskLED2(void *pvParameters) {
  (void) pvParameters;  // Avoid compiler warnings for unused parameter

  for (;;) {  // Infinite loop to keep the task running
    digitalWrite(LED2, !digitalRead(LED2));  // Toggle the state of LED2
    vTaskDelay(500 / portTICK_PERIOD_MS);  // Wait for 500 ms before toggling again
    // vTaskDelay works similarly to delay() but allows FreeRTOS to schedule other tasks
  }
}