menu "Brownout Detector" config ESP_BROWNOUT_DET bool "Hardware brownout detect & reset" depends on !IDF_ENV_FPGA default y help The ESP32-P4 has a built-in brownout detector which can detect if the voltage is lower than a specific value. If this happens, it will reset the chip in order to prevent unintended behaviour. choice ESP_BROWNOUT_DET_LVL_SEL prompt "Brownout voltage level" depends on ESP_BROWNOUT_DET default ESP_BROWNOUT_DET_LVL_SEL_7 help The brownout detector will reset the chip when the supply voltage is approximately below this level. Note that there may be some variation of brownout voltage level between each chip. #The voltage levels here are estimates, more work needs to be done to figure out the exact voltages #of the brownout threshold levels. config ESP_BROWNOUT_DET_LVL_SEL_7 bool "2.51V" config ESP_BROWNOUT_DET_LVL_SEL_6 bool "2.64V" config ESP_BROWNOUT_DET_LVL_SEL_5 bool "2.76V" config ESP_BROWNOUT_DET_LVL_SEL_4 bool "2.92V" config ESP_BROWNOUT_DET_LVL_SEL_3 bool "3.10V" config ESP_BROWNOUT_DET_LVL_SEL_2 bool "3.27V" endchoice config ESP_BROWNOUT_DET_LVL int default 2 if ESP_BROWNOUT_DET_LVL_SEL_2 default 3 if ESP_BROWNOUT_DET_LVL_SEL_3 default 4 if ESP_BROWNOUT_DET_LVL_SEL_4 default 5 if ESP_BROWNOUT_DET_LVL_SEL_5 default 6 if ESP_BROWNOUT_DET_LVL_SEL_6 default 7 if ESP_BROWNOUT_DET_LVL_SEL_7 endmenu