For my NMD102 final project, I decided to engineer a ‘virtual poster’. I generally sleep much better during a rainy night, so I improvised a simple Processing sketch that would mimic a rain-storm. This particular sketch uses a light sensor built into the Arduino to increase or decrease the amount of drops on the screen. As the amount of light in the room fades, more drops will appear and vice-versa. The background also fades between a sunny habitat and a rainy one, depending on the amount of light available. With a dedicated computer and a small projector, it would be possible to project this application onto a window or a wall and produce a similar feeling to the one I always get on rainy days.