Ahhh - ok: "//waitForSync（）;" 👍

Ok, Solved.
On cleared Arduino IDE, I install no M5Stack library, but "Unified M5Stack".
And ONLY M5Stack boards.
And other my modules ESP32 - WROOM, MH ET mini kit, Wemos D1 I can
programing as "M5Stack ESP32" and its work without any other ESP32
boards and libraries.

Thank you, you are brilliant. It is not the answer I was looking for, but thanks for explaining. I hope the world has more people like you who are willing to help a beginner. I want to be creative with technology, but don't want to be a engineer.

@felmue Thank you for the explanation and the link :)

Thanks a lot, Félix. I was concentrated on a big file and did not notice this .
Regards
Alain Hamradio F1CJN

Hello @jcarolinares

in case you are still looking for a solution. I've received my gesture unit and did a quick test. The library allows to pass the Wire1 instance so it's quite straight forward.
See example here.

Thanks
Felix

this issue fixed itself and has not reoccurred. I might have had the libraries or board set up incorrectly. It now works fine in Arduino IDE & VSCode + PlatformIO

@ChrisZang thanks for the reply.
The problem is that will only set up the time and DST offset if I request the time from the NTP server. When a DST transition occurs sometime later the clock will not automatically adjust without doing another request from the NTP server.
I have solved the problem by simply adding the code to advance or retard the clock at the appropriate time based on my timezone. i.e. first Sunday in April at 03:00 I change the clock to 02:00 and the first Sunday in October at 02:00 I change the clock to 03:00.

@felmue Thank you for the quick reply.
Yes, it works perfectly. :)

👍Thank you!

I tried to make the arduino ide executable for the m5stack at the same time - Windows or Linux . It worked now on linux mx.👍

Well if you got as far as you did you have already installed the ESP32 boards so you can pick the correct one. I assume the core basic does still use the "M5Stack-Core-ESP32" board.

https://github.com/m5stack/m5stack

This link shows the documentation for the Grey(which I am using) and the Basic.

I can't translate all the warnings you got but the last part seems to indicate it isn't pointing to the correct config.h(or it can't find it). Config.h, i believe, is the library that is handling defining all the pins used in the stack. So without it the board has no idea what is going on.

Are you able to open other sample arduino sketches and select something like an UNO and compile just fine?

I wish I could help more. The only thing I can suggest is to step through the setup once again.

https://docs.m5stack.com/en/quick_start/m5core/arduino

What are you trying to do? There are loads of examples but if you are trying to build something specific that might help. I did a beginner 3.5hr video on doing a gps based speedo and talk about some basic graphics, text display and getting GPS using the TinyGPS++ library. not sure if that is what you are looking for. https://youtu.be/xlb7FGKBp3Q

https://github.com/pschatzmann/ESP32-A2DP

@felmue
OK thanks, I will try to look into this, I have the impression that it might be due to a different compiler. By the way do you know if it is possible to convert the arduino sketch into code that can be compiled with classical gc++
Thanks