Constant esp_idf_hal::sys::adc_atten_t_ADC_ATTEN_DB_11

source ยท 
pub const adc_atten_t_ADC_ATTEN_DB_11: u32 = 3; // 3u32
Expand description

<The input voltage of ADC will be attenuated extending the range of measurement by about 11 dB (3.55 x)