/****************************************************************************
 * Copyright (C) 2020 by Fabrice Muller                                     *
 *                                                                          *
 * This file is useful for ESP32 Design course.                             *
 *                                                                          *
 ****************************************************************************/

/**
 * @file lab3-1_main.c
 * @author Fabrice Muller
 * @date 28 Sept. 2020
 * @brief File containing the lab3-1 of Part 2.
 *
 * @see https://github.com/fmuller-pns/esp32-vscode-project-template
 */

#include <stdio.h>
#include <unistd.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"

static const gpio_num_t PIN_LED = 12;

/**
 * @brief Starting point function
 * 
 */

void app_main(void) {
    gpio_pad_select_gpio(PIN_LED);
    gpio_set_direction(PIN_LED, GPIO_MODE_OUTPUT);

    uint32_t ledState = 0;
    while (true)
    {
        ledState = ~ledState;
        gpio_set_level(PIN_LED, ledState);
        usleep(1000000);  
    }
}