Ambient Sensing for Zigbee lights allows zone-based lighting setups with just a firmware update and no additional hardware. Philips Hue products may support Ambient Sensing, requiring at least three lights.

With Ambient Sensing, groups of Zigbee devices—like smart lights—can work together to detect motion in a given area.

The Connectivity Standards Alliance (CSA) has introduced a feature named “Ambient Sensing” in a recent video announcement. There aren’t many details on this new feature, but from the video we’re assuming it utilizes Zigbee technology to detect presence within a room by analyzing interference in connection signals.

The Connectivity Standards Alliance teased an update to the Zigbee protocol The update will let Zigbee devices like Hue lights work as occupancy sensors We don't yet have a timeline for when the feature might be rolled out Your Philips Hue lights could soon get a lot smarter thanks to a free firmware update that would let them do double-duty as occupancy sensors.