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Guided trail

Wireless and Connectivity Trail

Nine guides in reading order, from how Bluetooth pairs to how your phone knows where it is.

9 guidesabout 63 min in total
A wooden frame sign with 'Free Wi-Fi' text displayed on a stool in a dark room.
Photo by RDNE Stock project on Pexels

What is a trail? A trail is a reading path: 9 guides in the order that makes each one easier to understand. You tick off each guide as you finish it, and the progress bar remembers where you stopped.

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  1. How Bluetooth Pairing Actually Worksbeginner 6 min read
  2. Wi-Fi vs Bluetooth vs NFC: What Each One Is Actually Forintermediate 8 min read
  3. How NFC Lets You Tap to Pay or Share a Filebeginner 7 min read
  4. Why Bluetooth Devices Sometimes Lag or Drop Audiointermediate 7 min read
  5. What the Numbers in Wi-Fi Names Like 802.11ac Meanintermediate 7 min read
  6. Why Your Wi-Fi Gets Slower the Farther You Walkbeginner 7 min read
  7. What a Mesh Wi-Fi System Actually Does Differentlyintermediate 7 min read
  8. How GPS Figures Out Your Exact Locationbeginner 7 min read
  9. Why Airplane Mode Turns Off Some Signals But Not Othersbeginner 7 min read

See everything in Wireless and Connectivity