'Looking for ways to access TIME parameter from Thingsboard
I am looking for a way a way to check from the Thingsboard server the status (ONLINE/OFFLINE) of the device connected to it. In other words, I'm looking for a way to check the device's heartbeat from Thingsboard.
The way I would implement this is that Thingsboard should ping the device every 5 seconds. If the device pings back, then we know the device is online. However, if Thingsboard pings and the device does not ping back, we know the device is offline.
However, I have a problem accessing the time parameter on Thingsboard (so I cannot know exactly the time when the device goes offline).
Are there ways to access the time parameter on Thingsboard server?
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