I was bored of turning the light on myself, so I built this! It's made from the LEGO NXT Mindstorms. It works by attaching a two long pieces to a motor. You also must have it stable so I lifted it up and taped it down. Finally attach a cord from the motor to the Mindstorms main unit. By the way, I programed it to turn on and off when I push the button, and I also programed it listen for my voice and turn on and off. Sorry some of the pictures are side-ways or bad quality.
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