Hi iiznh,
I have 2 x Deye SUN-5k-SG04LP1 Hybrid Inverters, paralleled, master/slave. You're the only person within this space that I've come across, specifically incorporating the Deye range of Inverters within Home Assistant, and as such I really appreciate the time and effort you've put into developing the hardware/software packages.
I don't have many questions, other than some confusion whether I need your dongle for just the master or both the master and slave. For clarity, if it's the later, can you confirm what I actually need? Maybe a video setting up a master/slave Inverter setup, along with Home Assistant integration is needed?
Cheers
Storm