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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.
Where what might of been Arm application CPUs it has definitely uses at the microcontroller level. https://github.com/ARM-software/ML-KWS-for-MCU
Its 512kb then PSRAM but yeah there is much you can do as I have been exploring KWS and so have Google https://github.com/google-research/google-research/tree/master/kws_streaming
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