Howdy, I fully agree ... a real time clock attached to an ESP32 does seem redundant since the ESP32 has a real time clock in it. However, that said, the DS1307 module can apparently remember time for years on a simple coin cell battery whereas the ESP32 will "forget" the time if the power is removed...

Another possibility is to use the "xxd" tool. This takes an arbitrary file as input (binary or text) and can produce a header file that contains the data in the file that is safe to include in your other C programs. See:

http://linuxcommand.org/man_pages/xxd1.html

The U8g2 library is an open source project for driving monochrome displays. This video tutorial illustrates how to use that library on an ESP32 using ESP-IDF. The video can be found here: https://www.youtube.com/watch?v=MipOGBStBbI In the video we reference a hardware abstraction layer that maps U8g...

Howdy Cornelis, I think the clue in your post is the "stack overflow". In an ESP32, we run "tasks" (which in other environments can be thought of as threads). A task is a function that is executed concurrently to other tasks. When we create a task, we allocate to that task the maximum stack size it ...

See also this relatively current issue:

https://github.com/warmcat/libwebsockets/issues/776

In this tutorial video we illustrate the attachment of a DS1307 real time clock module to an ESP32 and how to read and write from it using I2C.

https://www.youtube.com/watch?v=irtxFEZPRrg

Howdy, My 2 cents ... I would imagine that if you are running just "one core" then interrupts are occurring all the time. When an interrupt occurs, the code that was running is preempted and control is given to another section of code which runs until it releases and then we return back to the origi...

Howdy, Many thanks for the response. Can I assume that by saying that the sample frequency is 6kHz then we sample ADC 6000 times a second? Does that mean that there are 6000 results a second? If i was to be a masochist, then the minimum time I should read new values is 1/6000th of a second? Does the...

Might this help? It is a tutorial on using the core dump functions to determine where within code a panic occurred.

http://esp32.com/viewtopic.php?f=18&t=1111

Here is a technical video tutorial on using time based functions. Primarily it is the POSIX items that are covered but some discussion is had on SNTP.

https://www.youtube.com/watch?v=HIf_V0dfv5U