We’ve been thinking about a concept of ‘variables’ that would allow the Rule Engine and Dashboards to interact with each other.
(We actually prototyped some early versions of the variable concept, but ended up shifting focus back to other highly requested community items)
The idea would be that you could set the values of variables in the Rule Engine and then use those variables in different places in the dashboard or in other rules. In your example, you might use a rule to average multiple sensors and store that value in a variable… then display that variable as the label in your dashboard tile.
Edit: Variables are now available!
Variables for Rules and Dashboards!