We've done a lot of human sensors (1W, 1U, 2A), but why one more?  

Because we are always exploring more possibilities, more personalized options.  

And this time what we want is to ask ourselves, how small can the LD2410 be at a manageable cost?  

We like the 1U size, but if we can go one step smaller, we still want to give it a try.  

After a month of repeated testing we settled on this esp32c3 + ld2410c combo and it really is super small.  

This time we used a circular structure and a design that hides part of the data lines.  

In use, it is no different from 1U. Since it is an esp32c3, then there will be a slight benefit of being able to use the esp web tool to brush and write without having to use esptool.py.    

It features:  

- Small size for hiding.

- With the convenient type-c power supply, all you need is a 5v 1a power adapter.

Above the 1M, we offer a wide selection of colors and cable lengths. Please note that the black color of the case, may result in extremely poor light sensor performance! If you don't mind the daylight sensor, then black is close in other performance.