Hi.
It doesn’t matter. As long as you assign the right pins for what you want to do on the code.
Regards,
Sara

Thanks for your response, but it still not clear, because the location of the GPIOs are different from one ESP32 board to another. Does it recognize the type of ESP32 version (board) automatically?

Hi.

It doesn’t recognize the type of ESP32. But that’s not needed.
For example, GPIO2 will correspond to GPIO2 no matter what board you’re using.

However, you need to know the pinout of your board to know if that GPIO can be controlled as an input/output or if it is available on your board. For example, some ESP32 boards have a built-in OLED display connected to some GPIOs, and so, those GPIOs cannot be controlled as regular pins.

Regards,
Sara

Thanks and appreciate your promptness. That explains it. 

Great.
I’ll mark this issue as resolved. If you need further help, you just need to open a new question in our forum.
Regards,
Sara