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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
You'd need to find a Datapack that allows you to do those things with your limitations. I have made a homes Datapack in the past, but it doesn't require any cost and doesn't have a limit on the amount of homes you can set. But you can use it as a basis for your own system. (https://plagiatus.net/datapacks)
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