Arduino boards have analog and digital pins to which you can connect many other electronic components and devices, including displays, motors and sensors. Arduino Shields also allows you to extend the functionality of the board by adding options such as a Wi-Fi or Ethernet interface. There are also pin expanders to increase the number of outputs. The most basic and necessary accessories also include a stabilized power supply with appropriate current capability. Of course you can also install different types of feet, cases or pads to increase the comfort of using the board.
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