Lora modules on mini shield for UART connection


I would like to try with Arduino two Lora modules on a mini shield that makes the Lora usable with a serial UART TTL connection, but I do not know how to use them. Is it possible to use these modules with a serial connection in Arduino? What sketch should I use? Has anyone already used these Lora modules? What library should I use?

The modules are those in the picture.