I am trying to build communication across multiple Arduino using RS485. When i am trying to connect 3 Arudino nano together using breadboard my code doesn't reach slave where as if i just if i do direct connection between 2 RS485 without breadboard it works but i use breadboard for 2 it doesn't work. Am i missing any setup here?
Breadboard connection - A & B are connected to + & - of both RS485.
Working connection - A & B of first RS485 connected to A & B of 2nd RS485.