project using relay,motor,and IC

hi to all,

currently i'm a student as a computer technician.

and our teacher wants us to make a project that uses a relay, motor, sensor with the control of integrated circuit and i have no idea in making a project that uses that equiptment.

can u give me a project about it? if ever u have a suggestion .pls teach me
the shematic diagram,block diagram and its chip configuration .
and how to operate on that project .

hope to hear a good news.

thank's

God bless.

john