This project was inspired by user dborello and his excellent PiSmoker project (http://engineeredmusings.com/pismoker/ and https://github.com/DBorello/PiSmoker). I encourage you to check it out and get a rough idea of how this all works. This particular project was built around a Traeger Texas smoker grill platform, but should work for most older Traeger models (or other brands with similar parts like the older Pit Boss) built with similar parts (fan, auger, and igniter). I’ve built the code in a way to be somewhat modular & extensible such that you can replace the grill platform with your own specific platform instead. Newer Traeger grills with their newer wifi enabled controllers have DC components (instead of the AC Fan / Auger) and aren’t covered by this project.