The Internet of Things, Explained

You walk up to your front door, and it unlocks as it recognizes the key fob in your pocket. It’s cold outside, but the air on the other side of your threshold is a toasty 74 degrees because the thermostat fired up your furnace the instant you (your phone, more accurately) crossed the 20-mile geofence you drew around your home. As the door swings open, your recessed lighting illuminates your path to the kitchen, everyone’s first destination when arriving home after a long day at work. A g