Google says it will pay $3.2 billion to buy Nest Labs, which develops high-tech versions of devices like thermostats and smoke detectors.

Google's latest purchase is Nest Labs, a maker of sophisticated thermostats and smoke detectors. On Jan. 13 Google said that it would pay $3.2 billion in cash for the firm.
The Spark team has published their design and related schematics on Github, so you can build a connected thermostat yourself. You can also read their story and get more details on each step of the process on their blog. Chances are, this device won't get you a $3.2 billion payday like Nest, but it looks like a fun little project for those willing to dive in.
Nest is run by one of the most renowned hardware visionaries in the business, Tony Fadell, who is known as the father of the iPod after bringing the idea of a small music device to Steve Jobs at the turn of the century.
He also played a key role in the development of the iPhone.