Seems to work OK for me !
I’ve created a Ping Sensor device for a HTPC and two Meshbot rules.
One rule for testing “False” / Off and one for testing “True” / On. the rules actions just send a TTS announcement to the Google Home speaker so I can hear it.
The “True” rule worked, when I turned on the PC (after poll interval) I heard the TTS saying that PC was ON.
The “False” rule also worked. I did hear a TTS saying that the PC was OFF, when I turned if OFF (after poll interval)
So at a basic level the Ping Sensor plugin appears to be working.
Note- the default Poll Interval appears to be 60 seconds.
I would however like to see a device in the dashboard GUI, for both the WOL and Ping Sensor to show some device status information and an ON / OFF button on the WOL device tile, similar to the 3rd party Vera plugin with the combined WOL / Ping Sensor functionality.