Arduino + V5 Wiring

I posted this last week, but I just realized it was in the wrong category…

I came across this post about serial communication between an Arduino and V5, and I as well as a few other teams I know would like to try to implement this for data collection. However, we aren’t exactly sure how to wire up the setup. I understand that you need an RS485 module, which I have, but which pins do you connect to the Arduino and to the V5 cable? I would rather not try something without being sure, and risk burning out the port… Also, will it be a problem that the ports run on 12V but Arduino uses 5V? Thanks!

Also, I read somewhere that using the USB port and connecting it to a USB shield for Arduino is also an option. If that would work better, how would you go about sending and receiving information over USB in VEXcode?