Hi,
right now I’m using an older FHEM installation and want to switch to a newer system like Home Assistant. Main thing why I’m looking into HA is Bermuda for presence detection.
Right now I’m using FHEM as automation system running on a Debian machine, which is via Proxmox sitting on my server in the basement in a small 19" rack. I do have many older (not the newer IP ones) Homematic devices (e.g. window contacts, radiator valve, light switches, shutter control…), but also newer ones running via MQTT. The Homematic coverage is quite problematic in my home, therefore I do have three old RPi2 with HM-MOD-RPI-PCB on it distributed to have good coverage. They are forwarding their interface via socat to the Debian server, allowing FHEM to control them via a so called “virtual CCU”. Meaning all three HM-MOD-RPI-PCB are connected to FHEM at same time.
Sadly I haven’t found anything like this in HA. I even haven’t found articles how to connect to remote interfaces, only how to connect a HM-MOD-RPI-PCB on a local machine. Does HA allow
a) the usage of HM-MOD-RPI-PCB on a “remote” RPi?
b) more than one HM-MOD-RPI-PCB interface?
System on the RPi with HM-MOD-RPI-PCB should be some Linux (now: Debian), e.g. I do have directly connected to the GPIO some fan control, pet entrance which is exposed via mosquito/MQTT to FHEM, meaning I installed on system level some scripts