I am trying to follow below design to communicate with 2 Arduino Nano, using the example shared here https://github.com/RalphBacon/RS485-Serial-Data-Transmission. When i look at data my slave never receive any data where as master does send data. I am not sure where exactly i am doing mistake and how to get it resolved.
Solution i tried -
1 - Connect ground of both arduino. 2 - Switch Tx/RX with data pin.
Could you please guide me i am i am making any mistake here..
Goal - My goal is to communicate between these 2 Arduino to perform some tasks.