#include <Arduino_FreeRTOS.h>

const byte ledRed = 7;
const byte ledBlue = 8;
const byte ledGreen = 9;

static void light_red() {

  digitalWrite(ledRed, HIGH);
  vTaskDelay(500 / portTICK_PERIOD_MS);

  digitalWrite(ledRed, LOW);
  vTaskDelay(500 / portTICK_PERIOD_MS);  

}

static void light_blue() {

  digitalWrite(ledBlue, HIGH);
  vTaskDelay(500 / portTICK_PERIOD_MS);

  digitalWrite(ledBlue, LOW);
  vTaskDelay(500 / portTICK_PERIOD_MS);  

}

static void light_green() {

  digitalWrite(ledGreen, HIGH);
  vTaskDelay(500 / portTICK_PERIOD_MS);

  digitalWrite(ledGreen, LOW);
  vTaskDelay(500 / portTICK_PERIOD_MS);  

}

void setup() {
  // put your setup code here, to run once:
  xTaskCreate(   light_red,
                 "RED_LIGHT",
                 100,
                 NULL,
                 12,
                 NULL
  );

  xTaskCreate(   light_green,
                 "GREEN_LIGHT",
                 100,
                 NULL,
                 13,
                 NULL
  );

  xTaskCreate(   light_blue,
                 "BLUE_LIGHT",
                 100,
                 NULL,
                 14,
                 NULL
  );

  vTaskStartScheduler();

}

void loop() {
  // put your main code here, to run repeatedly:
}