#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/queue.h"

#include "driver/gpio.h"

#include "esp_log.h"
#include "esp_system.h"


#define LED_GPIO 1  // this pin is connected to blue LED on ESP-01

#define GPIO_OUTPUT_PIN_SEL  (1ULL<<LED_GPIO)

static void gpio_task_example(void *arg)
{
   	while (1) {
        gpio_set_level(LED_GPIO, 1);
        vTaskDelay(1000 / portTICK_RATE_MS);
        gpio_set_level(LED_GPIO, 0);
        vTaskDelay(1000 / portTICK_RATE_MS);
    }
}

void app_main(void)
{
    gpio_config_t io_conf;
    //disable interrupt
    io_conf.intr_type = GPIO_INTR_DISABLE;
    //set as output mode
    io_conf.mode = GPIO_MODE_OUTPUT;
    //bit mask of the pins that you want to set,e.g.GPIO15/16
    io_conf.pin_bit_mask = GPIO_OUTPUT_PIN_SEL;
    //disable pull-down mode
    io_conf.pull_down_en = 0;
    //disable pull-up mode
    io_conf.pull_up_en = 0;
    //configure GPIO with the given settings
    gpio_config(&io_conf);

    //start gpio task
    xTaskCreate(gpio_task_example, "gpio_task_example", configMINIMAL_STACK_SIZE, NULL, 5, NULL);
}