New ZWave safety plugin?

Plugins
1

I have a thought for a plugin that would interface directly with ZWaveJS. I have HomeAssistant set up as a VM, using ZWaveJS on a Raspberry Pi that HA interfaces with over the network, and for my 3d printer, I have a ZWave switch running it.

The thought is you set it up to connect to ZWaveJS, rather than going through HomeAssistant (I see there is a home assistant plugin, but it doesn't appear to have my thought in mind), and with octoprint monitoring temperatures, you would set a max temperature for hotends and the bed, and should they exceed the temperature you set, Octoprint sends a command to ZWaveJS to turn the switch powering the printer off. The idea is if something were to fail on, causing a thermal runaway, Octoprint in its native form could try to shut things down, but if it's a hardware fault that caused a relay or mosfet to fail closed, so power can't be cut to the device, you'd need to cut all power. That's where my thought comes in. If such a runaway should occur, Octoprint can send the command to ZWaveJS, turning the outlet off, ending the runaway.

Thought?

2

If you have it linked to HA, you could just use PSU Control and the Home Assistant sub-plugin.

https://plugins.octoprint.org/plugins/psucontrol_homeassistant/

3

Assuming the documentation is good you could just create your own sub-plugin to communicate using zwavejs I suppose.

https://github.com/kantlivelong/OctoPrint-PSUControl/wiki/Developers#sub-plugin

There might be better python module options that would integrate easier though maybe. Like https://github.com/pyzwave/pyzwave or https://github.com/OpenZWave/python-openzwave