Add the current value from one source to the legend of a different source's graph

Grafana Time Series Panel
1

Hi,
Is it possible to add the current value from one source to the legend of a different source’s graph?
My current example is using battery powered temperature monitoring nodes and wanting to display the remaining battery voltage in the legend of the nodes temperature graph.
Here is an image of my current Grafana layout. As you can see I current have graphs for the battery usage and the temperature. It would save a lot of space by showing the voltage in the associated Temperature’s legend.

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Thanks,
Markus

2

That’s not supported by Grafana. If using a SQL based datasource that should be possible, but doubt any other datasource supports this. Would suggest adding a separate query for remaining battery voltage and place that on the right y-axis.