Best mmwave presence sensors for static (non-moving) detections

Hardware
1

What is the best mmwave presence sensor for detecting truly static or non-moving (but still living) people? I’m thinking of cases like sleeping or watching a movie in a recliner or maybe even doom scrolling on a toilet.

I currently have several Apollo MSR-1 and Everything Presence Lite sensors and they work extremely well for moving targets even in different zones. Neither is excellent at still people for extended periods of time. That is, without a healthy delay, each will determine “not occupied” regularly in any of my above described scenarios.

I’ve watched and read several mmwave reviews concentrating on their ability to reliably detect moving targets but no real world tests or testimonials of the static case.

So, which sensors have you used that are truly excellent at static detections?

2

Isn’t MSR 1 using ld2410? I did notice any further than 4-5 meters it wasn’t detecting static well.

My solution was placing multiple ld2410 in the same room nearby areas where I’d usually sit or lie down.

As for lite, that’s using ld2450 and it’s not great for static detection unless hilink provides future update that fixes that issue

1 Like
3

I’m using some Screek 1U and Aqara FP2 sensors.

Both are pretty reliable, although fiddling with the Screek sensors requires using an app called HLK Radar Tool which is not as simple to work with as the Aqara app.

And while for the FP2s you can monitor multiple zones, the 1Us don’t have that feature - I guess, you get what you pay for.
But there’s also other versions of the Screek sensors out there that I haven’t looked into.

I don’t know what the FP2s have as the actual sensor, but I know the 1Us have a LD2410.

4

Yes, the MSR-1 uses an HLK 2410b. I find that it loses static / still occupancy even at 1 meter, after a few minutes. If it’s working well for you, though, then perhaps I just have it misconfigured. I do recall having to tweak the various thresholds and gates to prevent false positives and maybe I made some still threshold too low.

5

Could be too high, so you might need to lower the static thresehold