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Activity (Hands-On)Grades 6 - 12

RGB Color Mixing

Students move through the engineering design process as they write Arduino code and use a “digital sandbox” to create new colors out of the three programming primary colors: green, red and blue. They develop their own functions, use them to make disco light shows, and vary the pattern and colors of their shows. The digital sandbox is a hardware and software learning platform powered by a microcontroller that can interact with real-world inputs like light, while at the same time controlling LEDs and other outputs.

A diagram shows the overlap of red, blue and green circles resulting in the colors of cyan, yellow, magenta and white in the various overlapping areas.You can mix colors to make any new color you want!

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