Help me wiith Lora E22

Hello! I'm getting started with Arduino. I want to make two way data exchange between Lora E22 modules of type integer and byte. I ask you to change one of the examples from your library so that data can be entered not from the serial port monitor, but from outside. I can't figure out the code. For me, data transfer starts only after entering data in the serial port monitor, and I need data to be transferred between devices continuously. One remote device consists of a pressure sensor and a relay, and the other receives int 0-1023 from the sensor and sends commands byte 1,2,3 I can't implement persistent communication between them. Sorry for my bad english, I'm from Ukraine.