As of today, not only the temperature in the middle of the breeding chamber is displayed on the page with the live data of the hivescale, but also the temperatures in each of the 11 comb gaps. So you can see how big the breeding nest is at the moment, which should be especially interesting during the cold season.

 
Now, in warm weather in spring, the breeding nest fills almost the whole hive. Only the edge honeycombs do not contain brood cells and therefore do not need to be heated by the bees.

More information in the article about the HoneyPi project.