Using the open source Mono project, getting a typical Hello World .NET application running on the Raspberry Pi isn’t much of a challenge. So I figured it would be cool if I could use the little Pi to run ASP.NET code, which opens up a whole range of possibilities.
Adafruit IO uses “feeds” for the data used in your dashboard. This feed contains the raw data you’ll be looking at, such as a temperature reading. This data can be populated through a REST API, Python, Ruby, and NodeJS clients, or uploading a .csv.