Imagine waking up everyday without an alarm. However, curtains open up by themselves as soon as sun rises letting light in. Also after sunset, Instead of a tedious rotation over the house curtains to close everyone, Imagine all house curtains closes by themselves at the time you want. 

The idea is simply a light sensor that can send a signal to a torque motor responsible for opening and closing the curtains. Further, this should eventually be connected to an app (or another device) to control the preferred opening and closing times. 

For this project's scope: It will be a light sensor that rotates the high torque motor to demonstrate and test the concept.