31–40 of 60 posts
Feels like various companies have tried sticking this in smartphones and no one has yet found a use for it. At least in the smartphone form factor. https://en.wikipedia.org/wiki/Pixel_4#Motion_Sense
Feels like various companies have tried sticking this in smartphones and no one has yet found a use for it. At least in the smartphone form factor. https://en.wikipedia.org/wiki/Pixel_4#Motion_Sense
> Regulatory issues were likely a major factor that led to the demise of Soli and Motion Sense on future Pixel models. Soli operates in the 60GHz frequency, which is reserved for military and government use in India.. Many of the Google Pixel 4's Motion Sense gestures are available.. Nest Hub's Soli radar extends far enough to detect when you're sleeping, and to track your breathing.
What's cute about this is how far they went to make hobbyists happy. There's a way to connect it to Bluetooth and WiFi, and an Android app. There's compatibility with some Adafruit products. That's unusual for IC data sheets. This is a phased array device. Angular resolution 20 degrees, range resolution 1 meter. It's not a Doppler radar, so it can detect fixed objects. So if you're using it for people detection, you…
Interesting that it happens to be the harmonic frequency of oxygen. For these power levels it is probably fine but something to keep in mind.
That band is often chosen _because_ of the absorption band of oxygen. Significant attenuation at those frequencies means it limits range, allowing for higher frequency reuse and less interference over a greater area.
Could it be used as a "life" detector in collapsed structures after earthquakes?
Earlier quoted context omitted.
They don’t suck. The Garmin one is also a rear light. It integrates with the bike computer to show detections. When a car approaches from behind you get a visualisation on the bike computer showing you how far away the car is and an audio alert. If the car is approaching fast you get a different audio alert and the light flashes differently to warn the approaching car. It also detects up to three cars. There might be…
Ah. The Garmin Varia looks like it’s $200-300. Would be hard to go up against a brand like that, but wonder if you could compete on cost. The margins look great.
What's cute about this is how far they went to make hobbyists happy. There's a way to connect it to Bluetooth and WiFi, and an Android app. There's compatibility with some Adafruit products. That's unusual for IC data sheets. This is a phased array device. Angular resolution 20 degrees, range resolution 1 meter. It's not a Doppler radar, so it can detect fixed objects. So if you're using it for people detection, you…
Professionals are using hobbyist tools more and more, since these tools are just so much easier to use and don't require wading through datasheets which is like filling out tax forms.
Also IoT usecases require flexibility in connectivity.
Can this be used to monitor people through walls? Could it be used as a "life" detector in collapsed structures after earthquakes?
Can this be used to monitor people through walls? Could it be used as a "life" detector in collapsed structures after earthquakes?