We're all used to the idea that Google tracks what we do online. But if you go to Google I/O, you'll find that the data-hungry company, in partnership with the O'Reilly Data Sensing Lab, is keeping tabs on the physical world, too.
At its developer conference, the company has a set up a network of 525 sensor motes. Each small electronics board monitors temperature, humidity, ambient light levels, air quality, audio noise, and radio-frequency noise. And with footstep detectors, some monitor where people are going at the conference, too. … Read more