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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.
C) Option A, but figure out how to use RS485 serial protocol. Some people have already figured this out: https://github.com/jwarcd/CZII_to_MQTT and https://github.com/ronisaacson/cz2. This bypasses the thermostat controller. I would have to hook up either a RS485 to WiFi adapter, or an Adrino, or a Raspberry Pi Hat and interface with it. I'm a software engineer, so I could probably make it work. Eventually.
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