Canvas
Go to northwestern.instructure.com and sign on with your netid/password.
Access your notification prefs as shown below. Check that Announcements go to an email address that you actually read. Your notification settings pertain to all the courses you are enrolled in that use Canvas.
You should be enrolled in a course called 2014FA_MECH_ENG_233-0_SEC20 Electronics Design ; this is for all three sections (20, 21, 22)
A direct link to the course is https://northwestern.instructure.com/courses/3101