Tech Note 146 - ESP32 LoRa Transponder example
Here two ESP32 LoRa modules are used to form a transponder pair. See below for the code.
The same code is used on each device, although you can edit the identity of each so you know which is which. You should expect up to 7km range in an open environment, more with improved antennas.
Code: https://github.com/G6EJD/ESP32_LoRa_T...