#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_adc/adc_oneshot.h"
#include "esp_log.h"
#include "esp_err.h"

const static char *TAG = "ADC";

#define CONFIG_LOG_MAXIMUM_LEVEL 5

static int adc_raw = 0;


void app_main(void)
{
  esp_log_level_set(TAG, ESP_LOG_VERBOSE);
  adc_oneshot_unit_handle_t adc_handle = NULL;

  adc_oneshot_unit_init_cfg_t init_config = {
    .unit_id = ADC_UNIT_1,
    .ulp_mode = ADC_ULP_MODE_DISABLE,
  };
  ESP_ERROR_CHECK(adc_oneshot_new_unit(&init_config, &adc_handle));

  adc_oneshot_chan_cfg_t config = {
    .bitwidth = ADC_BITWIDTH_DEFAULT,
    .atten = ADC_ATTEN_DB_11,
  };
  ESP_ERROR_CHECK(adc_oneshot_config_channel(adc_handle, ADC_CHANNEL_6, &config));

  while (1)
  {
    ESP_ERROR_CHECK(adc_oneshot_read(adc_handle, ADC_CHANNEL_6, &adc_raw));
    ESP_LOGI(TAG, "ADC%d Channel %d -> Raw Data: %4d", ADC_UNIT_1 + 1, ADC_CHANNEL_6, adc_raw);
    vTaskDelay(pdMS_TO_TICKS(200));
  }
  adc_oneshot_del_unit(adc_handle);
}