Somewhere around 2010, I discovered the Netduino project. This was an Arduino, but you could write code in .NET. Since the Arduino IDE wasn't that evolved at that time just yet, and .NET was already a professional language that I mastered, I started toying with this.
Since the support for many components weren't there at the time I started, I started writing loads of libraries for different components. Even though I haven't maintained this for a while, those libraries are still very much requested.
In 2011 they were hosted on Codeplex, a cloud mercurial versioning provider, but Codeplex has been discontinued. For that reason I recently converted the repository from mercurial to git and moved it to Bitbucket.
Below you'll find the documentation of the library.