An Ethernet to ESPNOW router for the ESP32
This was tested with the WESP32 ( https://wesp32.com/ ) ESP32 Ethernet module and the Olimex module ( https://www.olimex.com/Products/IoT/ESP32/ESP32-POE/open-source-hardware ) Its designed to receieved UDP packets on the Ethernet interface and forward them to the ESPNOW interface. You have to split your data into 250b blocks to TX to espnow, thats your problem :)