3D Capactive Sensing
A virtual spaceto create three-dimensional touchless interface. Based on simple fundamentals of capacitance. It uses the length of time it takes a capacit or to charge and make something rather amazing withit:a 3D interface that can track the position of your hand. Placing an object within the electric field of a capacitor affects the capacitance value and the corresponding time constant
Explore capacitive sensing by using several panels of cardboard lined with aluminum foil. Thesepanels, when charged,create electric fields that correspond to X, Y, and Z axes to create a 3Dcube. With the aid of an Arduino microcontroller and some supplied code, movements inside the cube are tracked as your hand moves around inside the field