Use Shelly 3EM as Smart Meter for Growatt over RS485

before starting with home-assistant I would like to know if there is a solution for me.
I own a Shelly3EM and have read that I can integrate it easily. I own a USB to RS485 adapter. I know which cables to connect to which ports. Now I want to use the Raspberry with the Home-Assistant installation to send ! the Shelly Data over RS485 to my Growatt permanently - as a recognized Smart Meter.
Is there a way to solve that?
Thank you