KC868-A16 - Own Arduino firmware

[boe666]

here is PCF8574 arduino library we are using.

PCF problem solved. What about ETH.h library and compiler errors? Which library should I use? Currently the one built into the esp32 library is used, which can be seen in the error logs.

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Interestingly, the example from the esp32 / Ethernet library called ETH_LAN8720 compiles without errors in the same Arduino environment. Request for support. Ultimately, I would like to use the MYSENSORS library, but I have to start with the network first.