I imagine that the proper way to implement an RS485 multidrop bus is the following:
What happens if, in order to save cables, I connect the same 5 nodes above using this other topology?
- Will it works?
- If no, why?
- If "maybe", under which circumstances will it work?
P.S.: yes! I know that MEGA has three Serials and, as such, I could implement two different BUSses (1: Mega<->Mega<->Mega; 2: Mega<->Nano<->Nano), but this will increase the complexity of the software I'm running, as it needs some hacking in order to play nicely with two distinct RS-485 busses;
P.P.S.: This is the bus discussed in this other question