There are plenty of Bluetooth-based sensors and smart household items, but they have one big gotcha: they typically need an intermediary device to get internet access and offer control away from home. The Bluetooth standards group has unveiled an architecture that gives those devices an internet gateway without requiring a phone, tablet or another in-between gadget. Your internet-connected thermostat could control temperature sensors around the house and send that information online, letting you track them from wherever you happen to be.