@plusulli I will investigate, thanks a lot

Hello,
Can you help me for that:
I looking for how I can send data between two M5Stick C plus without WiFi and of course without a cable.
The goal is that the M5Stick are into a car together (one in the front and the second in back) the second activate a screen led with a sign who come from the first.
Do you think that is possible?
Thanks in advance.

Sorry for my bad English.

Remy

Hello,
I don't understand, I wrote a code for M5Stack (Grey) to connect a website. This code is small and sometime Arduino GUI compiling correctly and a few minutes after without any kind of changes, it doesn't compiling again. I received this message: "Error compiling for board M5Stack-Core-ESP32".
All library are up to date.

Thanks for your help in advance.

Remy