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Sensify is a new technology that can turn Zigbee switches, bulbs, and plugs into sensors with a firmware update. This could be how Philips Hue will bring ambient sensing to its smart lights. Sensify ...

We may not be able to see them, but our homes are awash with radio signals as our smart devices communicate with each other over networks such as Wi-Fi and Zigbee. We pass through these radio signals ...