Advanced / Send ZWave Command from Rule Machine

On my device page there is an Advanced section, opening that gives the Send ZWave Command facility. I'd like to be able to fire this from within a rule on Rule Machine. I assume it ought to be part of Run Custom Actions, maybe for an Actuator device type, but it's not there.

I have Stelpro Ki ZWave baseboard thermostats scattered around the house which are capable of displaying the External temperature. I've set up the weather device using OpenWeatherMap and figured out that if I send 31 05 01 21 00 20 using the "Send ZWave Command" to the thermostat it correctly displays 32F (the last byte hex 20 = 32). But obviously I want to pick up the correct current value from my weather device and use Rule Machine to send it out.

At the moment I'm using "Generic ZWave Thermostat" as my driver, because there doesn't seem to be support for the StelPro Ki. Everything else is working using the generic driver, except this. I understand these drivers are not open source, or I would add my own method to do the job.

Can someone help me get this sorted? Thanks.

No, you can only run commands (see the "Commands" section at the top of the device detail page you're looking at) this way -- or really any way, as those are the means meant to be used to automate a device.

It looks like there are custom drivers floating around for this, including this one mentioned in this topic, that might give you a better chance of doing what you want: Stelpro KI STZW402WB (although it does not have the feature you want, it appears the rest works and would be possible for you or someone to add if you want).

1 Like

Thanks for the link to that driver, I'll give it a try and maybe petition @ymerj to add the ability to update the external temperature display (if the latest version doesn't have it).

It would be handy to be able to send a zwave command from a rule. Maybe the Hubitat developers could consider providing this as a future feature, I hope it wouldn't be that hard given it already exists in the device UI.