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Actuators like motors and servos make robots move, spin, or grab objects.
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Unicode lets computers show all languages and emojis.
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Servo motors rotate to exact angles, perfect for robot arms or steering wheels.
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Use n for new lines or t for tabs.
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DC motors make wheels turn or fans spin when powered and controlled by code.
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Commenting out code helps test or pause parts of it.
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Stepper motors rotate a little at a time for smooth, accurate motion.
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Reads how hot or cold something is so robots react to the environment.
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Light sensors help night-lights turn on or robots follow a bright path.