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

#define button 18
#define led 19

#define button_pin_sel (1ULL<<button)
#define led_pin_sel (1ULL<<led)

void app_main() {

   gpio_config_t io_conf = {};
 
   io_conf.mode = GPIO_MODE_INPUT;
   io_conf.pin_bit_mask = button_pin_sel;
   //io_conf.intr_type = GPIO_PIN_INTR_DISABLE;
   io_conf.pull_down_en = 0; 
   io_conf.pull_up_en = 0; 
   gpio_config(&io_conf);

  
   io_conf.mode = GPIO_MODE_OUTPUT; 
   io_conf.pin_bit_mask = led_pin_sel; 
   io_conf.pull_down_en = 0; 
   io_conf.pull_up_en = 0; 
   gpio_config(&io_conf);
   

   while(1){

      if(!gpio_get_level(button)){
         gpio_set_level(led,0);
      }
      else{
         gpio_set_level(led,1);
      }

   }

}