This is a project of IoT. And unfortunately, I'm afraid the call of mqtt functions within the template I got is not in the standard way. So I guess the repo wil have no meaning other than a record of some hours I spent on this course.
If I had chance to design this things by myself, I would be happy to follow the official documents.
Thanks to Dave Gamble for his JSON parser in C, and here is the original repo, I suppose? Because the file just came with the template delivered from the instructor, without any clarification. I don't like this.
To compile the files
$ make Run the executable
$ ./smart_homeSee here.
Wish everyone that you don't have to deal with the bad instructors and modify their original template, or use any valuable software they developed.
And they won't even listen to you, because you're not paying for the software. You can use this because they're "generous".