I've got an ESP32-POE which I use with ethernet for connectivity, not wifi.
Anyone know if it's possible to use serial to communicate with the DF Player Mini in ANY way? Like using software serial, for example?
As far as I can see you can't use UART if you're using ethernet with this board.
QuoteAs far as I can see you can't use UART if you're using ethernet with this board.
You can use serial and Ethernet of ESP32-POE at the same time - no problem. Some pins that can be used for serial are available at the UEXT connector (UEXT pins #3 and #4 usually), but any free GPIO can be assigned for the task.