Domoticz

Quick question, since I can't find a conclusive answer anywhere: Are Z-Wave and the RaZberry V1 supported on an RPi 3B plus, running Buster?

I can add the RaZberry controller in the OpenZWave USB, but I can't do anything with the controller. If I try and include a device, the webpage just hangs. Clicking abort does nothing. Refreshing the page and soft-resetting the controller eventually stops the include process (lights on the razberry turn off). After the soft reset, the controller isn't visible in the OpenZWave USB anymore, but it is visible in the Control Panel.

If Z-Wave / the RaZberry V1 should work on a 3B plus running Buster, does anyone have a clue what's going on?

I am wondering the same thing. I had a working system with following setup:
-Raspbian Jessie
-Boot partition on SD-card and root partition on USB HDD
-Razberry daughter card V1
-Domoticz v4.10717
-RPi 2B
Because my SD card crashed I decided to fix it and upgrade domoticz to the latest version. However because of dependency, I needed to upgrade to Raspbian Buster. After the upgrade, domoticz worked again. But z-wave wasn't working. I got an error on the openzwave device. Something about homeid 0. And driver failed. Even after readding the razberry in domoticz again. I decided to restore a backup of domoticz, back to version v4.10717. That took care of the errors, but still It seems that domoticz is not communicating with the razberry card. I verified that the card is present on the right tty device and according to dmesg it is.

Only thing that I can try now fresh install on Buster and if that doesn't work a fresh install on Jessie. But I am gonna wait with that as I will be moving in the near future and then I am planning to reinstall everything anyway.

Are there any news about this? I'm planning to do the same as wardc and would appreciate some experience.

It is working for me. I'm not sure I would recommend the RaZberry V1 though, for me it has been nothing but trouble in combination with Domoticz. After every reboot of my RPi, it's always a gamble if the RaZberry gets setup properly, which can result in none of your Z-Wave devices working. I would highly recommend looking at an alternative option. I think ZigBee is more popular these days. If you already have Z-Wave devices, I'd suggest looking into other, more modern hardware than the RaZberry V1.

Well this topic certainly does not sound promising. I've got pretty much the same setup but no devices yet. i first wanted to see whether the RAZ V1 could be added or not. That appears to be working although I dont know what the unknown devices are. Did OZW create them or something?...and what the difference between a node and device? Node is physical and device could either be physical or virtual?...

I'm not sure why you've got so many nodes, I've never seen that before. I would simply select each unknown device, and click delete in the bottom left for those.
About node vs device: A node is a physical device (AFAIK, you can't have virtual nodes, it has to be a real device), and a device is a part/section of that physical device. I know, kinda confusing.

Example:
Node: Weather sensor
Devices:
- Rain sensor
- Temperature sensor
- Humidity sensor

Node: Smart plug
Devices:
- Switch
- Power meter

Node: RGB LED strip controller
- R channel dimmer
- G channel dimmer
- B channel dimmer
- All channel dimmer
- Power meter

All these 'devices' are part of the weather sensor node, but provide different functionality. This could also be the same functionality, for example in a power strip that has power metering for each outlet separately, that would give you X power meters, where X is equal to the number of outlets on the power strip.

I got the razberry v1 working again on buster. Had to disable the serial console trough raspi-config.

To clarify my previous answer, here the steps I had to follow:

1. Start raspi-config: sudo raspi-config.
2. Select option 3 - Interface Options.
3. Select option P6 - Serial Port.
4. At the prompt Would you like a login shell to be accessible over serial? answer 'No'
5. At the prompt Would you like the serial port hardware to be enabled? answer 'Yes'
6. Exit raspi-config
7. Disable the modem: sudo systemctl disable hciuart
8. Reboot the Pi for changes to take effect.

Make sure you have uart enabled, should be default.
You should see something in the dmesg log like:
This means that the UART (Serial interface) is connected to /dev/ttyAMA0.