I'm trying to see the datatype of a variable using typeid but I get the following message:
error: cannot use 'typeid' with -fno-rtti
Apparently this is due to a build flag in Platformio which cannot be changed?
Please advise

@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

Thank-you Felix,
that was helpful, that bit now compiles but I run into another compiling error raised by the ESP8266 libray:
"In file included from .pio/libdeps/m5stack-core2/ESP8266Audio/src/AudioGeneratorMIDI.cpp:65:
.pio/libdeps/m5stack-core2/ESP8266Audio/src/libtinysoundfont/tsf.h: In function 'void tsf_channel_midi_control(tsf*, int, int, int)':
.pio/libdeps/m5stack-core2/ESP8266Audio/src/libtinysoundfont/tsf.h:2100:1: error: insn does not satisfy its constraints:"
Again I don't understand why it does not compile in my VSCode/Platformio frame while it compiles fine in Arduino when I'm using the same version for the M5Core2 and ESP8266Audio libraries.
Does it have to do with the c++ compiler? Is it different between the 2 do the libraries have to be adapted to Platformio even if the have the same version number?
Thanks for your help.

Hi I have a nice webradio sketch that compiles fine with Arduino,
I have imported it into VSCode/PlatformIO, and installed the same libraries/versions that I used in Arduino (M5Core2.h and ESP8266.h) but VS code shows a compilation error saying something like:
"lib/M5Core2/src/M5Display.h:117:12: error: 'vector' in namespace 'std' does not name a template type..."
I tried to #include vector.h but it doesn't help?
How come it compiles in Arduino and not in VSCode/Platformio?

OK, thanks I will try LVGL

Hi,
I'm looking for a library with APIs allowing to quickly build a GUI using buttons, sliders, menus, etc.
Please advise

Can you recommand à good tutorial for M5stack?

I have successfully installed à webradio sketch with Arduino using streaming mp3 flows. I would like to do something similar using micropython’ is that possible?

@wsanders OK thanks, I will look into that

Can you run micropython and C++ (arduino) on M5stack using the same firmware? I would like to program with both as some libraries are only available for C++.
Can you launch a C++ script from micropython? I this is possible can you please give details of how to do it?
Thanks