A free upgrade could let Philips Hue and other Zigbee bulbs act as motion sensors
Philips Hue and other smart bulbs based on the Zigbee standard could soon act as motion sensors without the need for any additional hardware. This would mean they could automatically switch on when someone enters a room without using a separate motion sensor.
Even better, the new functionality looks set to be added to existing Hue bulbs through an update to the Hue Bridge …
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