Hello. I have plugged esp32 using battery and solar power. After energy reduction when it is insufficient for ESP32.
ESP32 is off.
When the battery is sufficiently charged above a certain value on the ESP32, the LED will light up but the ESP will not connect.
Connection only after pressing the reset button.
(ESP has deep sleep mode set)
Can anyone advise me? How to start after charging the ESP battery?
Thanks
Have same problem. I have build solar powered outdoor wether station using ESP32. It was working good for more than month untill leafs fall on solar panel. That caused battery voltage drop below 2,5v and ESP32 turned off. When solar panel wasl cleared, voltage back to 3,3v but ESP has to be reset to start. I would like to modify it to make it start on its nown when power back.
Supervision (voltage detector) is required (eg LMS33460).
https://www.aliexpress.com/w/wholesale-lms33460.html?catId=0&initiative_id=SB_20230808005358&SearchText=lms33460&spm=a2g0o.home.1000002.0
Which resets the MCU when rising above 3.3V.
The ESP always cuts out when slowly increasing the voltage, since the memory already has enough voltage, but the cpu is constantly reset.
Hi Pawel, did you find a solid solution to ensuring your esp device starts up properly when the batteries have enough voltage?