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Efficient code saves time and memory.
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A microcontroller is a small computer chip that runs code to control lights, motors, and sensors.
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Every circuit needs a ground connection to stay safe and stable.
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Nested lists help store rows and columns of data.
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Voltage measures how strongly electricity moves through a circuit.
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2D arrays are tables with rows and columns.
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Raspberry Pi runs full programs, controls devices, and even connects to the Internet for projects.
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Current shows how much electricity travels through wires.