For the moment there are no default actions because they have to be defined for each device
There is also no default UNIT_MAC. Therefore they do not belong into the default.h
and took the else out (no more needed because now defined in default.h
Added band in default.h
Band should be renamed to FREQUENCY (because it defines the frequency)
Definition of DEBUG in the main sketch (easy to change)
DBG definition
Use Serial2 instead of Serial1 for the ESP32
Changed the concept of UART.IF in the -5 sketch: Debug is always Serial and the ESP32 gets an additional Serial2 for communication
esp_now_peer_info_t peerInfo; seems not needed anymore
added a ROLE definition. With this definition it should be possible to have the same directory for all roles. We can discuss this in Skype if you want