Low cost mmWave 60GHz radar sensor for advanced sensing
1–10 of 60 posts
Re: Low cost mmWave 60GHz radar sensor for advanced sensing
#2“Quick! How can we use this to gather data for ad targeting?”
Re: Low cost mmWave 60GHz radar sensor for advanced sensing
#3"What Is mmWave Radar?: Everything You Need to Know About FMCW" (2022), 30 comments, https://news.ycombinator.com/item?id=35312351
"Inside a $1 radar motion sensor" (2024), 100 comments, https://news.ycombinator.com/item?id=40834349
"WhoFi: Deep Person Re-Identification via Wi-Fi Channel Signal Encoding" (2025), https://news.ycombinator.com/item?id=44685869
Re: Low cost mmWave 60GHz radar sensor for advanced sensing
#4Pleasantly surprised to see electronics parts manufacturers on front page HN. The advancement of sensors nowadays is staggering - I'm reminded of the recent airborne dust sensor that's literally orders of magnitude smaller because it uses a new backscatter detection mechanism. All this technology available at very reasonable prices too.
Re: Low cost mmWave 60GHz radar sensor for advanced sensing
#5Interesting that it happens to be the harmonic frequency of oxygen. For these power levels it is probably fine but something to keep in mind.
Re: Low cost mmWave 60GHz radar sensor for advanced sensing
#6I’ve played around with this (the KIT-CSK-BGT60TR13C). It is a very interesting gadget and the kit doesn’t need much configuration. In an afternoon I made a car detector for my bike that detects the presence of an approaching car from behind. I thought I had a winning startup idea then found out this idea has existed for years. :(
Re: Low cost mmWave 60GHz radar sensor for advanced sensing
#7Interesting that it happens to be the harmonic frequency of oxygen. For these power levels it is probably fine but something to keep in mind.
If you’re worried about things exploding or something, don’t worry. Unless you were exciting a fuel/air mixture up to the combustion point you have nothing to worry about. So that would take a deliberate change to the chemical makeup of the air and much much much higher transmit power levels.
But I guess you should be careful if you are trying to modify this into an RF pulse welder and someone left their cutting torch gas cylinders venting nearby.
Re: Low cost mmWave 60GHz radar sensor for advanced sensing
#8“Quick! How can we use this to gather data for ad targeting?”
So much data collected for targeting ads, only to finally conclude that the only product I'm interested in buying is a handful of cool mmWave sensors from Infineon.
Re: Low cost mmWave 60GHz radar sensor for advanced sensing
#9Pleasantly surprised to see electronics parts manufacturers on front page HN. The advancement of sensors nowadays is staggering - I'm reminded of the recent airborne dust sensor that's literally orders of magnitude smaller because it uses a new backscatter detection mechanism. All this technology available at very reasonable prices too.
It is nice to see more technically oriented things on the main page. It is frustrating to see very high level more businessy topics.
Re: Low cost mmWave 60GHz radar sensor for advanced sensing
#10Interesting 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.