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bleeding-edge-ranciliopid
open-source do-it-yourself modification (PID, ...) of your espresso machine for a better tasting espresso.
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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.
Personally, if you want PID, I'd go https://github.com/medlor/bleeding-edge-ranciliopid with using a ESP32 (S3 if possible). Setting up system just for PID is super simple but then gives you options to expand functionality later on.
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