sunshine

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Sunshine is an application I use to monitor my solar panels, and is a demo of building an IoT project using Azure.

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<div align="center">
    <img width="200" height="200"
      src="noun_solar_72144.svg">
  <h1>Sunshine - My Home Grown IoT Project</h1>
  <p>Sunshine is a project I started to learn how someone would go about building an IoT project. My use case was to connect to my solar inverter and export the data to store where I could produce my own reporting against it.</p>
</div>

## How it works

The project is made up of 3 components:

* Downloader
  * .NET Core application written in F#
  * Deployed as a Docker image
  * Pulls the data from the inverter and pushes it to [Azure IoT Hub](https://azure.microsoft.com/services/iot-hub/?WT.mc_id=javascript-0000-aapowell)
* Functions
  * [Azure Functions](https://azure.microsoft.com/services/functions/?WT.mc_id=javascript-0000-aapowell) for processing the data, written in F# against the v2 runtime
  * Listens to a set of [Event Hubs](https://azure.microsoft.com/services/event-hubs/?WT.mc_id=javascript-0000-aapowell) for incoming messages
  * Writes to [Table Storage](https://azure.microsoft.com/services/storage/tables/?WT.mc_id=javascript-0000-aapowell)
* Mock API
  * A fake implementation of my inverter API so I can dev when I'm not at home
  * Implemented using Saturn, a F# web framework

The Downloader runs in a Docker container and will either talk to the Mock API (local dev) or the inverter (production) and push the data up to [Azure IoT Hub](https://azure.microsoft.com/services/iot-hub/?WT.mc_id=javascript-0000-aapowell). IoT Hub will then route the data to one of several [Event Hubs](https://azure.microsoft.com/services/event-hubs/?WT.mc_id=javascript-0000-aapowell) which the Functions are subscribed to for processing and storage in [Table Storage](https://azure.microsoft.com/services/storage/tables/?WT.mc_id=javascript-0000-aapowell).

Deployments are orchestrated using [Azure Pipelines](https://azure.microsoft.com/services/devops/pipelines/?WT.mc_id=javascript-0000-aapowell) to build the images, push to [Azure Container Registry](https://azure.microsoft.com/services/container-registry/?WT.mc_id=javascript-0000-aapowell) and then use [Azure IoT Edge](https://azure.microsoft.com/services/iot-edge/?WT.mc_id=javascript-0000-aapowell) to deploy onto either my test device or my production device.

You'll find more information on the process on my blog through the series [Home Grown IoT](https://www.aaron-powell.com/posts/2019-05-30-home-grown-iot-prologue).

## Acknowledgements

Logo: solar by iconsmind.com from the Noun Project

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