/* 
  /////////////////////////////// Blinking and LEDs using ESP IDF with ESP32/////////////////////////
  1) Understanding the gpio_reset_pin() function of the API
  2) Understanding the gpio_set_direction() function of the API
  3) Understanding the gpio_set_level() function of the API
  4) Understanding the gpio_get_level() function of the API
  5) gpio_config_t         Create a template from gpio_config_t struct for GPIO common configuration. 
*/
  
 ///////////======The configuration parameters of GPIO pad for gpio_config_t strut=====///////////////
  // uint64_t pin_bit_mask;              /*!< GPIO pin: set with bit mask, each bit maps to a GPIO */
  // gpio_mode_t mode;                  /*!< GPIO mode: set input/output mode                     */
  // gpio_pullup_t pull_up_en;         /*!< GPIO pull-up                                         */
  // gpio_pulldown_t pull_down_en;    /*!< GPIO pull-down                                       */
  //gpio_int_type_t intr_type;       /*!< GPIO interrupt type                                  */




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


#define LED1 GPIO_NUM_2  /* Define the GPIO2 as LED1 */
#define LED2 GPIO_NUM_4  /* Define the GPIO4 as LED2 */
#define LED3 GPIO_NUM_5  /* Define the GPIO5 as LED3 */

/* Create a template from gpio_config_t struct for GPIO common configuration. */
gpio_config_t GPIO_Config;        //Name the struct template as GPIO_Config

void app_main(void)
{
    // Configure Digital I/O for LEDs
    GPIO_Config.pin_bit_mask =  (1<<LED1) | (1<<LED2) | (1<<LED3);    /* set with bit mask, each bit maps to a GPIO */
    GPIO_Config.pull_down_en = GPIO_PULLDOWN_DISABLE;                 /* pull-down ENABLE/DISABLE */
    GPIO_Config.pull_up_en = GPIO_PULLUP_DISABLE;                     /* pull-up ENABELE/DISABLE */
    GPIO_Config.mode = GPIO_MODE_OUTPUT;                              /* set input/output mode  */
    GPIO_Config.intr_type = GPIO_INTR_DISABLE;                        /* interrupt type */

   /* Pass the configuration parameters of GPIO pad for gpio_config function */
    gpio_config(&GPIO_Config); 


    while(1)
    {
    
    // Turn the LEDs ON in one order
        gpio_set_level(LED1, 1);
        vTaskDelay(250/ portTICK_PERIOD_MS);
        gpio_set_level(LED2, 1);
        vTaskDelay(250/ portTICK_PERIOD_MS);
        gpio_set_level(LED3, 1);
        vTaskDelay(250/ portTICK_PERIOD_MS);

    // Turn OFF in a the same order
        gpio_set_level(LED1, 0);
        vTaskDelay(250/ portTICK_PERIOD_MS);
        gpio_set_level(LED2, 0);
        vTaskDelay(250/ portTICK_PERIOD_MS);
        gpio_set_level(LED3, 0);
      vTaskDelay(250/ portTICK_PERIOD_MS);
    }


}