How can I create time-lapse images?

Episode 1012
Robert fromRobert has a Sony NEX-7 and wants to use it for time-lapse photography. Leo says the NEX-7 is an excellent sensor with its huge APS-C sensor and the micro four-thirds lenses. It's light and compact, too. Robert says he can get apps for time-lapse, but the automatic settings are giving him problems.