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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.
RAK Wireless has a system called "WisBlock Sensor or IO modules" that is quite neat. Some examples of thing that can be built: https://github.com/RAKWireless/WisBlock/tree/master/examples/RAK4630/solutions
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