Forum Discussion
Microsoft Teams display for Surface Pro or iPad (Meeting information outside the meeting room)
Example 4: https://compliance.microsoft.com/informationgovernance?viewid=retention
ChrisWebbTech great idea with that PowerApp! #innovativethinking
Now that you got me to that track you could create a PowerApp that would show the calendar information. Perhaps using a Flow or scheduled script to write information to a SharePoint list (or CDS) so you guarantee that PowerApp is not showing too much details there. Or that room calendar events could be queried directly as well.
And as for the creation of meeting there are Graph APIs available. Use of Graph API in Flow requires premium licensing. The issue would be that the creation of online event is possible only with delegated permissions and would have to run under user's context (instead of using Graph API call as application).
Thinking a bit more: the PowerApp could create a calendar meeting and then initiate meeting (inviting the room in) directly using CloudComminications Graph API, which is getting app level support "in near future".
Sounds like something fun to build and test.