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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.
I think that semihosting is good enought for simple task and printf, (https://interrupt.memfault.com/blog/arm-semihosting), or you can look into ITM tracing, but it require also the SWO pin. (https://github.com/orbcode/orbuculum is very intresting)
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