Take action if particular sensor is online

[aaiyar]

@BGP

I've attached a Shelly Uni to my boat's breaker panel, intending to use it as a way to detect if I've forgot to turn off the battery disconnects at the end of the day. So, if that particular Uni is reachable and reporting voltage at lets just say sunset, or any arbitrary evening time, then I've left the battery on and I need Hubitat to take an action.

One of the actions in Rule Machine 5.1 is "Ping an IP address". It is nested under "Send, Speak, or Log a Message, Send HTTP Request".

Then at the time of your choice (as trigger), send a ping to the Shelly Uni (give it a static IP). If there is a ping response, then you know it is still online, and you can do whatever other actions you want. There's a great rule from @damianm that explains how to use Ping.

Rule 5.1: Added Ping action

Here is how I use it. [Screenshot 2021-12-28 at 04.17.59] You need to copy value into a local variable so it can be used in conditionals. [Screenshot 2021-12-28 at 04.21.09]