poncho project that includes an elixir nerves firmware for a weather sensor hub, a grafana dashboard, and a backend dashboard service that accepts published sensor readings and displays them in a phoenix liveview.

Health Data Tracker

YoptaDB is a Cassandra/Scylla-backed time series database written in Elixir. It's design is inspired by the KairosDB. This may be useful in Java-less environments such as exotic architectures.