If you are not a student at NC State University then you do not have a "UNITY ID." Follow these steps:
1. Go here.
2. You are a "New Projects (Moodle) User." Scroll down to New Projects Users.
3. Click on Create new account (there's no fee for the account).
4. Choose a username and password. Confirm enrollment by responding to an automatically generated email.
5. Go (once again) to https://moodle-projects.wolfware.ncsu.edu/login/index.php.
6. Scroll down to "Projects User Login." Login to your new Moodle account.
7. Begin the class here: https://moodle-projects.wolfware.ncsu.edu/course/view.php?id=10216#section-0. There's no fee for the class.