3 ms·

https://lastminuteengineers.com/esp32-sleep-modes-power-consumption/ https://lastminuteengineers.com/esp32-sleep-modes-power-cons... Would it be enough to powe

https://lastminuteengineers.com/esp32-sleep-modes-power-consumption/ https://lastminuteengineers.com/esp32-sleep-modes-power-cons... Would it be enough to power an ESP32 every so often? Put in deep sleep mode, power source charges small battery, wake up, do something, sleep again, etc.

ranma42 6y ago
"in deep sleep mode, ESP32’s current consumption is almost 150 uA" Assuming a 3V power supply is needed, at 100uW, you only get ~30uA, so no. However the "Hibernation" mode would work (however, this looses memory state): "This Power mode of ESP32 consumes a minimum amount of current, which is around 5 uA." But you'd not be able to wake up very often since the active mode power draw is very high (and even higher yet when connected to wifi). You'd be much better off using a proper low-power microcontroller.