Some schools have computer rooms that are open for the students to use, after peak hours most of the students have left, and so most of the time the room is unoccupied, but the lights and air conditioning all remain on, which results in much energy wasted.

Computers rooms are divided into multiple sections and each section would have their own lighting and air conditioning energy saving switch.

1. The student can manually operate the buttons to turn on the lighting and power outlets in a given section.
2. The air conditioning would be restricted: only when a certain temperature threshold is reached would the air conditioning be allowed from being turned on.
3. Once the students have left, there will be a period of time where the room is being observed by the sensor to make sure that everyone has truly left, then it will automatically turn off the lights and the air conditioning.