[How to easily turn on/off all debug message on Arduino IDE]

But even if we disable debug, it will call print method and do not print anything.

I mean we should make it something like

#ifdef DEBUG

Serial.print("\n debug controlled print");

#endif

Here when we disable macro, its like code is not written for compiler, code will be removed in macro processing itself.

 

[Lora network without Lora Gateway.]

As shown in image,

Q1) Is it possible to broadcast message from Lora Node S to all Lora Nodes A,B,C, D and E?
Q2) Can Loara Node S be programmed to act as server to receive data from all other nodes?

Each of Lora Node has sensor whose data will be sent to Lora Node S, then Lora Node S process data from Arduino and send back command to all Nodes to operate relay.

I want design small system without Lora Gateway and it will work offline, Lora Node S control all other Nodes and also Receive Data from them.