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‎worksheet.md

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## GPIO pins
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The bank of pins along one side of the Raspberry Pi are called GPIO pins - General Purpose Input Output.
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The bank of pins along one side of the Raspberry Pi are called General-Purpose Input/Output.
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These pins allow the Raspberry Pi to control things in the real world. You can connect components to these pins: output devices like LEDs (light emitting diodes) which can be turned on and off at will; or input devices like a button or sensor which can be used to trigger events, such as turning on an LED when a button is pressed.
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