Every year at I/O, Google’s ATAP division, which is responsible for turning some of the company’s crazier ideas into products, organizes its own small keynote. This year, the company offered updates on a number of projects, including Project Soli, the company’s attempt at building a very small radar sensor that can translate hand movements into digital signals for building new user interfaces for wearables.
After last year’s I/O demo, the team focused on bringing the project to developers. It first shipped a developer kit to about 60 developers last year. The team said it was encouraged by how those developers use the sensor. Developers built object recognition tools, musical instruments and more.
That’s obviously not useful, so the team challenged itself to run on a smart watch. To do that, the team redesign the chip with Infineon to reduce power consumption 22 times — down from 1.2 to 0.054 W now. The footprint is now also 3x smaller.
Radar typically takes a lot of computational power, but this new version is now 256x more efficient and can still run at 18,000 frames per second.
With all of this work, the team was able to build Soli into a smartwatch (“And it can even show time!”).
The team noted that Soli isn’t just meant for smartwatches, though. Working with Harman’s JBL brand, the team worked on building prototype speakers with a built-in Soli radar that allows you to control the speaker. The sensor can see up to a distance of 15 meters, so you could control your speaker from a distance, too.
To further seed the development community, ATAP is going to launch a new beta-quality dev kit for developers next year.
Sadly it’s unclear when we’ll see the first products with the Project Soli technology will arrive in stores. But just like ATAP worked with Levi’s on bringing its Project Jacquard smart fabrics to market, it will likely do the same with Soli as well.