From my understanding, RS485 is simply a serial connection. So is there much I need to do to get the basic rover sample sketch for W/A/S/D control working over the RS485 shield sold at RobotShop?
Alright, awesome. I found this epic cable for this project. I’m putting a camera on it, that I wanted to have a live feed out to my security camera card, which is BNC. I figured out security cameras use the same size barrel connector as an Arduino, and I found a camera I can power with 5V via the Arduino.
Then I found a single cable, meant for security cameras, which has BNC cable, barrel power, and RS485 serial in a single cable.
You should not need to do anything to the code. You will simply need to send the commands trough the RS485 adapter instead. As you point it out, RS485 is indeed only the electrical connection standard, not the communication protocol.