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 all the time, and Philips Hue has come up with a neat way to use these signals to turn the vast majority of Philips Hue bulbs into motion sensors.
You Can Turn Almost Any Philips Hue Bulbs Into Motion Sensors, but There’s a Catch
