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Sharon Cichelli’s Hello, Arduino: Write Code That Interacts with the Real World introduces beginning developers to the Arduino as an approachable entry into physical computing. The article guides readers through the core idea of building programs that sense inputs (like pushbuttons) and produce outputs (such as LEDs and servos), using simple sketches in a C++-extended language. By walking through a blinking LED, a button-activated circuit, and a servo example, Cichelli e...See More