This is a little led with a light indicator which will indicate the amout of light there is with the servo. There is also a temperature sensor on it to see the temperature in your room.
Duration: 15 minutes
How To Make It
Bed lamp and light indicator
Take al the required bits and cardboard, ductape and a pen or pencil (whatever you like the most).
First you are going to put al the bits in the right order so it works fine, then you are going to take the servo and put the mechenical arm on it. After that you will take some cardboard and you will make a moon and a sun, indicating the brightness of the light (obviously). Then it's just a matter of setting it up and done!