Please note, this blog entry is from a previous course. You might want to check out the current one.
Lecture #18 starts by explaining how to add camera functionality (including a short demo), core motion (with demo) and localization (no demo due to lack of time).
Slides are available on iTunes …..
The lecture is available at iTunes and is named “18. UIImagePickerController, Core Motion, and Localization (March 7, 2013)”.