Exploring Arduino, 2nd Edition

17Wi-Fi and the Cloud

• Parts You'll Need for This Chapter
• Adafruit Feather M0 Wi-Fi w/ATWINC1500 (soldered w/ PCB antenna)
• USB cable (Type A to Micro-B)
• Half-size or full-size breadboard
• Assorted jumper wires
• 220Ω resistors (×4)
• 4.7kΩ resistors (×2)
• 5 mm common-anode RGB LED
• Piezo buzzer
• 5V 1A USB port wall power supply (optional)
• 4-digit 7-segment display with I²C backpack (1.2 inch or 0.56 inch, any color)
• Wi-Fi network credentials (and optionally, router administrator access)
  • CODE AND DIGITAL CONTENT FOR THIS CHAPTER
  • Code downloads, videos, and other digital content for this chapter can be found at:
  • exploringarduino.com/content2/ch17
  • Code for this chapter can also be obtained from the “Downloads” tab on this book's Wiley web page:
  • wiley.com/go/exploringarduino2e

This is it, the final frontier (and chapter). Short of launching your Arduino into space, connecting it to the internet is probably the closest that you will get to making the entire world your playground. internet connectivity, in general, is an extremely complex topic; you could easily write entire volumes of books about the best way to interface the Arduino with the Internet of Things, or IoT, as it is now often called. Because it is infeasible to cover the multitude of ways you can interface your Arduino with the web, this chapter focuses on imparting some knowledge with regard to how network connectivity works with your Arduino (or any IoT device) and how you can use a Wi-Fi–enabled Arduino to both serve up ...