Detects motion and beeps if motion at any spot is detecting 100 motion. Also, if a face is detected, the squares are opaque, but they are translucent when a face is not detected By the way, 100 motion happens more than you think. Try moving very slightly. If you are too fast (which happens easily) it will go off. And even if you move slowly enough, it still detects your face :)
Wanna turn this into a security camera? Try bluetoothing a bluetooth camera and leaving it somewhere. It will detect motion and beep, allowing you to view the camera from a longer distance. Mobile friendly (if your phone can handle almost 300 clones)