I have been using Grafana for simple temperature monitoring and love it!, in my case I have the 1-wire temperature sensors which are getting fed to influxDB where it feeds the address of the sensor (e.g. serial) and the temperature value.
I did this so that I could expand the system, and add Aliases later on if needed. What I would love to be able to do though is to have a quick and easy way to see when a sensor last sent an update. I know I could use alerts, but since some sensors will be on and off over time, i thought it might be easier to be able to do something like show a panel for each sensor, and the time/date it was last updated.
I am not sure how to best do this though, as all the panels are designed from what I can see to show the time series data (e.g. value) rather than the time/date updated.
Is there an easy way to do this, or would anyone have any pointers which may be useful?
Cheers!