#include <Arduino_FreeRTOS.h>
#include <semphr.h>

#define LED_PIN 13

SemaphoreHandle_t ledSemaphore;

void LED_On(void *pvParameters) {
  for (;;) {
    Serial.println("Inside Led ON task");
    digitalWrite(LED_PIN, HIGH);
    vTaskDelay(10 / portTICK_PERIOD_MS);
    xSemaphoreGive(ledSemaphore);
    vTaskDelay(1000 / portTICK_PERIOD_MS); 
  }
}

void LED_Off(void *pvParameters) {
  for (;;) {
    if (xSemaphoreTake(ledSemaphore, portMAX_DELAY) == pdTRUE) {
      Serial.println("Inside Led OFF task");
      digitalWrite(LED_PIN, LOW);
      vTaskDelay(10 / portTICK_PERIOD_MS);
    }
  }
}

void setup() {
  Serial.begin(9600);
  pinMode(LED_PIN, OUTPUT);

  ledSemaphore = xSemaphoreCreateBinary();

  xTaskCreate(LED_On, "LED_On", 100, NULL, 1, NULL);
  xTaskCreate(LED_Off, "LED_Off", 100, NULL, 1, NULL);
}

void loop() {
}