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“Beware of bugs in the above code; I have only proved it correct, not tried it.”
That was how Donald Knuth, author of The Art of Computer Programming (1968), expressed the difference between pristine mathematics and buggy reality. “When programming, you abstract away the entire physical world as much as possible, because it’s messy. But then it comes back and bites you,” Paul Ford, cofounder of the platform-builder Postlight, told me. “You end up in these situations where 80 percent works, 19.9 percent is hard but there’s an answer that makes sense, and the last 0.1 percent is absolutely insane.”
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.