Smart Display is ideal for displaying information such as weather, schedules, recipes, and time. But unlike traditional clocks, the information displayed on the smart screen is used close and privately, making it often difficult to see what is displayed on the screen over a longer distance. To that end, Google has developed a new system that uses ultrasonic sensors to determine if there is a person nearby and changes what’s on the screen.
Ultrasound sensing was first introduced with Nest Mini and Nest Wifi sub-devices, which, according to Google’s official support website, read: “Ultrasonic sensors use sound waves to measure distance from objects and can be used to detect if someone is near the device.” “
On both Nest Hubs, it makes high-frequency noise through the speaker and then listens back through the microphone (Engadget has confirmed with Google that the frequency does not interfere with your pet’s more sensitive hearing). The monitor can detect people five feet away and adjust their interface accordingly.
When someone approaches the screen, the Nest Hub device automatically expands the weather card and displays the touch controls. As you go further, Nest Hubs will increase font size and graphics to make timers, weather reports, and commute maps easier to read, and hide touch controls.
Like Hub Max, Nest Hub can proactively display notifications. But because it doesn’t have a camera configured for facial recognition, it will only display publicly available information, not private information. Google tells us that ultrasonic technology is now being rolled out on Hub and Hub Max.