SPrAyCE features an Arduino-connected can that creates virtual spraypaint by tracking the user’s movements.

Raphael Dokyun Kim, from MIT MediaLab's Fluid Interfaces Group, has developed SPrAyCE, an Arduino-connected can that is used like a joystick to create virtual spraypaint. The “spray in space” device uses hand tracking to record the user's movements, turning them into 3D graffiti. This can be rotated, explored, and erased easily. The angle of the user's arm can also determine the different colors that are selected. The Creators Project reports that Kim has a few ideas for taking this project further. He said:

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