Connecting Arduino to MESA 7i95T through serial

Hi all,
Hope you are doing well! I'm trying to implement a status bar using a LED strip (WS2813 RGB LED - Grove) and an Arduino (uno or nano). I wanted to connect the arduino through serial communication directly to the a MESA 7i95T board, to send some string commands to the Arduino to control the LED strip behaviour.

Is it possible to do so? Can I just connect the Arduino to one of the two RS422/485 interfaces of the board? Do I need a specific firmware for the board? In case yes, my setup also includes a MESA 7i87 for reading some sensors.

Thanks,
Best,

Amedeo

You can use smart serial, there are open source project on github