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Looking for advices for ESP32S3 clock without Internet

Posted: Thu Jan 19, 2023 11:22 pm
by lladam
Hi all.
Are there any suggestions for ESP32S3 clock without use of internet?
Thanks
Adam

Re: Looking for advices for ESP32S3 clock without Internet

Posted: Fri Jan 20, 2023 2:54 am
by ESP_Sprite
Suggestions for what exactly? A kit to build? How to write firmware? An existing product? Something specific you would normally do via the Internet but now are looking for a different way? Hardware design? Software design?

Re: Looking for advices for ESP32S3 clock without Internet

Posted: Fri Jan 20, 2023 3:24 pm
by bidrohini
You have to use the in-built RTC of the ESP32. https://www.theelectronics.co.in/2022/0 ... esp32.html

Re: Looking for advices for ESP32S3 clock without Internet

Posted: Sun Jan 22, 2023 2:22 am
by lladam
bidrohini wrote:
Fri Jan 20, 2023 3:24 pm
You have to use the in-built RTC of the ESP32. https://www.theelectronics.co.in/2022/0 ... esp32.html
Thanks.
how to set current time in this link?

Re: Looking for advices for ESP32S3 clock without Internet

Posted: Mon Jan 23, 2023 10:48 am
by Franco
"The first line of the setup function sets the time to January 17th, 2021 at 15:24:30,"
Just change the date and time to the desired ones.

Re: Looking for advices for ESP32S3 clock without Internet

Posted: Thu Feb 02, 2023 5:09 pm
by lladam
Franco wrote:
Mon Jan 23, 2023 10:48 am
"The first line of the setup function sets the time to January 17th, 2021 at 15:24:30,"
Just change the date and time to the desired ones.
Thanks.
I tested the link you shared that works well, question is when the battery is used up, only way to correct the time is re-upload sketch, is it possibly to use NTP to synchronize and sign the current time to ESP32 like: rtc.setTime(current time); ?