LoRa Communication
The ESP32 and the Nano 2 will exchange data with each other over LoRa communication.
Connection Diagram
If you have not already added the LoRa module to the two circuits you can go back to the ESP32 Circuit and the Nano 2 Circuit and refer to the connection diagrams.
See the LoRa communication guide.
Code
The code for this circuit is distributed across multiple files, so will not be displayed here. It will be available for download for subscribers.