I'm trying to find a way to get the 'Last Active' metric from Z-Wave JS into Home Assistant so I can create automations to alert me of missing battery powered devices. I found this post, but I haven't ever done anything with MQTT before so I'm not 100% sure how to start (or if it's even still possible with current versions)
https://community.home-assistant.io/t/zwave-js-missing-last-received-attribute/307501/14
I did try toggling the "Disable MQTT Gateway" to 'off' and adding an MQTT integration using both hosts 'a0d7b954-mqtt' and 'a0d7b954-zwavejs2mqtt' but couldn't get either of them to add.
any tips/pointers to get me going in the right direction? I'm particularly interested in 'Last Active' and not 'Last Seen' because 'Last Seen' is subject to restarts of ZW, HA, the host, firmware updates of other devices, etc - where 'Last Active' is literally the last time the Z-Wave controller saw activity from that Node (much more reliable)