ive been trying to get serial2 to work on my esp32-dev-kitc-v4 using arduino ide, my goal it to have two esp32 communicate to each other via serial2 and/or serial1 to then print it on serial to view it on my com ports. unfortunately it seems that no data is being transmited nor read from serial2. iv...

i am using the esp32 wrover-b for my project. i want to use an external antenna that connects on the apex connector.
how can i make sure that i am using the external antenna and not the pcb antenna.
thanks