Controlling your World the Easy Way

Thank you, Daniel, for your reply. It is helpful to know that the LDO enters the dropout region below 3.6 V, since my app does briefly spike above 100 mA. I'll stop trying to over-optimize the battery configuration and stick with three cells. That has tested well and should work for the useful life ...

I was delighted to test your EzSBC-ESP32-01 board and achieve a deep sleep current of only 13 uA -- and it's made in the USA! My application spends most of the time in deep sleep until a reed switch wakes it up to send an ESP-NOW message to another ESP32, then goes back to sleep. With your board, it...