Foreword
The story of Circuit Playground begins maybe eight years ago. Adafruit was still an apartment company then. My partner and I were chatting with a middle school superintendent who told us that the school was being pitched STEM (science, technology, engineering, and mathematics) education products for its students (the products were similar to tablets with sensors that could plug in). But at $500 each, the school could afford only one per classroom. So twenty-plus kids would have to share.
At the time, Arduino was becoming popular—it’s a lot less expensive! But younger students struggled with learning C++ (especially if they were coming from block-based Scratch programming), and the setup could get complicated since Arduino requires a ...
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