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#include "EZADC.h"
void init_adc(ADC* adc)
{
// Only use unit 1, as unit 2 is going to be deprecated.
// And it does not work while using the Wi-Fi module.
adc->adc_init_config.unit_id = ADC_UNIT_1;
ESP_ERROR_CHECK(adc_oneshot_new_unit(&(adc->adc_init_config), &(adc->adc_handle)));
}
void config_adc(ADC* adc, int config_channel)
{
adc->adc_config.atten = ADC_ATTEN_DB_12;
adc->adc_config.bitwidth = ADC_BITWIDTH_DEFAULT;
adc->channel = ezadc_channel[config_channel];
ESP_ERROR_CHECK(adc_oneshot_config_channel(adc->adc_handle, adc->channel, &(adc->adc_config)));
adc->adc_cali_handle = NULL;
adc->cali_config.unit_id = ADC_UNIT_1;
adc->cali_config.atten = ADC_ATTEN_DB_12;
adc->cali_config.bitwidth = ADC_BITWIDTH_DEFAULT;
ESP_ERROR_CHECK(adc_cali_create_scheme_line_fitting(&(adc->cali_config), &(adc->adc_cali_handle)));
}
void teardown_adc(ADC* adc)
{
ESP_ERROR_CHECK(adc_oneshot_del_unit(adc->adc_handle));
ESP_ERROR_CHECK(adc_cali_delete_scheme_line_fitting(adc->adc_cali_handle));
}
int ez_read(ADC* adc)//, int adc_raw[2][10], int voltage[2][10])
{
char* TAG = "ez_read";
ESP_ERROR_CHECK(adc_oneshot_read(adc->adc_handle, adc->channel, &adc_raw[0][0]));
ESP_LOGI(TAG, "ADC%d Channel[%d] Raw data: %d", adc->adc_init_config.unit_id + 1, adc->channel, adc_raw[0][0]);
ESP_ERROR_CHECK(adc_cali_raw_to_voltage(adc->adc_cali_handle, adc_raw[0][0], &voltage[0][0]));
ESP_LOGI(TAG, "ADC%d Channel[%d] Voltage: %d", adc->adc_init_config.unit_id + 1, adc->channel, voltage[0][0]);
return voltage[0][0];
}
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