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Arduino Workshop by John Boxall

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Chapter 19. The Internet

In this chapter you will

  • Build a web server to display data on a web page

  • Use your Arduino to send tweets on Twitter

  • Remotely control Arduino digital outputs from a web browser

In this chapter you’ll learn how to connect your Arduino to the outside world via the Internet. By doing this, you can broadcast data from your Arduino and remotely control your Arduino from a web browser.

What You’ll Need

To build these Internet-related projects, you will need some common hardware, cable, and information.

Let’s start with the hardware. You’ll need an Ethernet shield with the W5100 controller chip. You have two options to consider: You can use the genuine Arduino-brand Ethernet shield, as shown in Figure 19-1, or you can use an Arduino ...

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