After learning the basics of physical computing, the challenge was to explain the pillars of current technology in a simple way so that children can understand them. RGB was chosen as one of the fundamental essential blocks. For this, a structure was created that allows the theory of RGB to be easily learned. This structure allows the user to observe the color changes by having different “quantities” of the color present.

Red, green and blue color cubes that express a color amount, guide the user to slide them into the structure to create a new RGB color.

This new color is created by adding cubes in each row, changing constantly while the user increments or decreases the amount of color in the structure. It was possible to explain by the use of an Arduino board, LED lights, and ultrasonic sensors.

This product is an easy way to represent a concept that is intrinsic in everyday life and that we often ignore, to help understand that televisions, computer screens, and projectors use red, green, and blue (RGB) as primary colors and then they mix them to create other colors.