RS485 recommendations?

Hello All -

I’m soon going to be trying to connect some Rollease Acmeda blinds to HA. The hub talks to the cloud, but I’d rather keep things local, so my plan is to connect my Pi to its RS485 port. (The protocol is well-documented.)

Anyone got any recommendations for good RS485 hardware? Ideally via USB (since I may move to something other than a Pi in due course).

I know there’s some support for RS485 in pyserial, and I’m assuming I’ll write everything above that myself, but if anyone has a good starting point or experience/suggestions with RS485 to save me some time, that would also be welcome!

USB RS485 dongles are generic and cheap. I use this one to talk with a Pentair pool pump. It’s been outside in a plastic box for a couple years and continues to work fine.

Thanks! I ended up going with the same thing, or something very similar with a different brand.

Basic tests working OK, but I need to find a bit more time before I do a proper async python module for HA…

could you please explain how to integrate the pypentair file in an home assistant PI based environment ? does it work as python script integration ? thanks