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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.
The pins are at top right corner here: https://pinout.xyz/ and you just connect TX to RX, RX to TX and GND to GND. On the software side you can use picocom on the builtin serial device. Not sure which though, seems to depend on the software and exact revision of your RPi.
If you burn a proper image on the SD card (I used images in https://github.com/Fishwaldo/meta-pine64), the machine boots (not instantly!), requires an IP address through DHCP and you can log in with SSH. (The "minimal" image does not have SSH.)
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