ESP32(-S3) ADC1 ESP-IDF minimal oneshot example with curve calibration

#include <esp_adc/adc_oneshot.h>
#include <esp_adc/adc_cali.h>
#include <esp_adc/adc_cali_scheme.h>


adc_oneshot_unit_handle_t adc1_handle = nullptr;
adc_cali_handle_t adc_cali_channel_handle = nullptr;

void InitADC() {
    //-------------ADC1 Init---------------//
    adc_oneshot_unit_init_cfg_t init_config1 = {
        .unit_id = ADC_UNIT_1,
    };
    ESP_ERROR_CHECK(adc_oneshot_new_unit(&init_config1, &adc1_handle));

    //-------------ADC1 Config---------------//
    adc_oneshot_chan_cfg_t config = {
        .atten = ADC_ATTEN_DB_11,
        .bitwidth = ADC_BITWIDTH_DEFAULT, // default width is max supported width
    };
    ESP_ERROR_CHECK(adc_oneshot_config_channel(adc1_handle, ADC_CHANNEL_6, &config));

    // Initialize 
    adc_cali_curve_fitting_config_t cali_config = {
        .unit_id = ADC_UNIT_1,
        .chan = ADC_CHANNEL_6,
        .atten = ADC_ATTEN_DB_11,
        .bitwidth = ADC_BITWIDTH_DEFAULT,
    };
    ESP_ERROR_CHECK(adc_cali_create_scheme_curve_fitting(&cali_config, &adc_cali_channel_handle));


}

void ADCRead() {
    // Read raw value
    int raw = 0;
    ESP_ERROR_CHECK(adc_oneshot_read(adc1_handle, ADC_CHANNEL_6, &raw));

    // Apply calibration to value
    int voltage = 0;
    ESP_ERROR_CHECK(adc_cali_raw_to_voltage(adc_cali_channel_handle, raw, &voltage));

    printf("ADC Channel[%d] Cali Voltage: %d mV\n", ADC_CHANNEL_6, voltage);
}

InitADC();
while(true)
{
    ADCRead();
    // Wait for some delay before reading again
    vTaskDelay(50 / portTICK_PERIOD_MS);
}