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Mastering Arduino by Jon Hoffman

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Output

The output block will contain electronic components that do something. These components give the circuit the ability to interact with the outside world or to do something. Some examples of output components are:

  • Motors: Motors allow the circuit to turn something like a fan or wheels. This type of component turns electrical power into power that does work.
  • LEDs: An LED can be used as indicators to give visual feedback to the user. This type of component will turn electrical power into light.
  • Speaker: A speaker can be used to give audio feedback to the user. This type of component will turn electrical power into sound.

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