I am using an ESP32 Pico Kit V4.
If the pins are all being used for several functions, how do I know that I'm not stepping on the toes of a pin by using it as input or output? Do I need to know and understand all of the pins functions before choosing pins?
Is this why we use pinMode()?
I do know if you try to use the serial pins it certainly will have problems doing two things at once. How about the other pins?