Hi guys. I'm a beginner and I'm working with ESP32. I need to make a program that captures the date and time, and that still manages to work with internet and power outages. I used the NTPClient to get the date via the internet (in the setup ()) and that date is passed to the RTC via the library "ESP32Time", when there is a drop in internet I can work with the dates and times, but when there is a drop and back from energy, dates stop working. Does anyone know what I can do? I searched and found nothing.
but when there is a drop and back from energy, dates stop working.
Please expand and explain
I simulate the power outage by removing the USB esp32 from the computer and putting it back. I also don't know if this is the best way to test this...
How are you powering the ESP32?
Is the RTC powered when the ESP32 is not?
...R
I use the ESP32 internal RTC and connect ESP32 via USB to the notebook, the RTC does not have a dedicated battery
filipekerplunk:
the RTC does not have a dedicated battery
You need to get one that does.
...R
is there any way to get dates and times and work with the power out and back, without a power supply to the RTC?
I don't think your testing procedure is valid. When you remove the USB connector, you have removed both power and the serial connection from the ESP32. I suggest you get a simple battery case which can hold four 1.5 v. batteries, and test your circuit standalone without the USB supplying power.
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