I would like to test Home Assistant, since the Demo Setup looks quite promising.
Hardware: RaspPi 3B+ with a SSD and Raspian Bullseye.
Presently I run Openhab 3.1.1 with Homegear and Dekonz.
Openhab is linked to Homegear (running on port xy)
Openhab is linked to Dekonz (running on port zy)
Openhab is mapped to 80, so I can access it via a wormhole from dataplicity. That has the reverse proxy advantage of also beeing able to access the rasppi linux.
Now to my question:
Instead of completely building all up from scratch, could i simply stop the OpenHab process via systemctl and install Home Assistant parallely on my device and link it simply to the ports on which homegear and dekonz is broadcasting? After that configure Home Matic and test, if I like it?
I don’t know about Dekonz, but it shouldn’t be a problem to do a Core installation for testing. You wouldn’t even have to disable OpenHAB for that, as Home Assistant is using a different Port. The communication with HomeMatic is done via XML-RPC, which could actually work in parallel as well.
Keep in mind though, that you don’t get support for the addons which are available for Home Assistant OS.
Your RasPi 3B+ is already loaded down pretty heavily. I know that openHAB 2.5 itself used to consume half the RAM of mine. I suspect openHAB 3.1.1 is even more resource hungry, as Java programs tend to be.
I would not recommend adding Home Assistant to that Pi. That said, I did something similar several years ago when I moved from HA to OH when 2.5M2 was the current Milestone. I moved back here when zwavejs replaced the older OZW. Here the developers actually listen to user input.
For testing, could you possibly run a VM or docker container on your laptop? I have not used Homegear or Deconz so I cannot comment further on that.
I know installing Home Assistant Supervised on a Debian system that has anything else installed is not supported.I run Home Assistant Container (Docker) on my Pi 3B+ as my test system with very few devices.
roger.
as far as performance is concerned, for the time beeing i can shut down openhab without severe consequences. so the service would be terminated and only home assistant would be running.
but of cource. even a better idea is to put it on a laptop and link it to homegear and deconz over the lan.
i think i will try that first, before touching the RaspPi.
I’ll keep you informed about the outcome.
and @ Prodigyplace: You preferred OpenHab or Home Assistant and for what reason?
Years ago I started my hobby on Home Assistant. The OZW Z-Wave integration here had poos support for my devices here in the US. Both Home Assistant and openHAB projects were undergoing major changes at that time. I moved to openHAB with the assistance of Chris Jackson, the Z-Wave developer over there.
I used openHAB up until 3.0.x was released. During the 3.1 minor release development cycle, they broke backward compatibility which broke the Z-Wave device database updates. At that time I had started working with the newer 700 series devices. Kai, lead developer insisted I needed to wait over 3 months before the needed database could happen. In the mean time, Home Assistant greatly expanded their developer staff and moved to zwavejs for Z-Wave. I was so impressed that i moved back to Home Assistant. Over on the OH forums, I was Bruce_Osborne. you may have seen me around there.