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dwire-debug
Simple stand-alone debugger for AVR DebugWIRE chips connected directly to an FT232R/CH340/DigiSpark/LittleWire on Linux or Windows.
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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.
It's pretty common to use a second chip for this though, you can embed a number of tiny chips that support something like Blackmagic probe on to act as debug bridge. https://github.com/blacksphere/blackmagic/wiki
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