ESP32 Forum

Where are defined brownout voltage level on esp-idf ?

Is it possible to change the default values ? Only for test purpose

Where are defined brownout voltage level on esp-idf ?

The level is defined by the CONFIG_ESP32_BROWNOUT_DET_LVL_SEL project configuration option.

Is it possible to change the default values ? Only for test purpose

No, because the voltage levels are fixed in HW by enumeration values of the RTC_CNTL_DBROWN_OUT_THRES register. See page 718 of the reference manual.