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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.
Sounds like a job for a Raspberry Pi with FullpageOS. Just create the HTML file and add JavaScript to reload it every X seconds (or have a DIV that refreshes the data every X seconds).
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.