If you ever wanted to take a Raspberry Pi (or any linux-based platform exposing an i2c driver), a connected sensor, and wrap them both into an Elixir program but thought it might be too daunting of a task, this article is for you! In this article, we are going to focus on a simple i2c device that senses temperature and humidity and demonstrate how to write an application that will run as a GenServer. You can use this application (available as a hex archive) to request a measurement in your application by including it as a dependency.

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