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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.
HDQ protocol is made by Texas Instrumets and we can talk about it like any other topic. It's like CAN BUS or I2C. Here you have HDQ library for talking with iPhone batteries or any other HDQ-capable Texas Instruments IC. You can wire iPhone battery to Arduino and read/write it with info (if it's not write protected). Or you can use that battery with your DIY project: https://github.com/mozzwald/hdq-batt-status
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