R60ABD1 Lidar Sensor, 60GHz Motion Detection Radar, Human Presence Detection Sensor Module for Smart Home

I got the 77 GHz version of this module, and it works, but is VERY poorly documented and definitely not for beginners.I was able to get it working by extrapolating from the documentations for other versions of the module, and modifying the libraries to parse the data packets from it. I'm not sure I'm taking full advantage of its features, but it does work, and hopefully the documentation gets better over time.

I wanted to use this with ESPHome but couldn’t figure it out. It’s an I2C device so it should be straight forward, but I could make heads or tails of it. Avoid for ESPHome.

This was a decent 24Ghz module when it came out a couple of years ago. And it's still alright. But now there are cheaper modules that are better supported by the creators and community. I mostly got this as a drop-in replacement for an old project. It just reads the presence state from the pins. And this works perfectly fine for that.

This board didn't include any documentation on how to use it, nor does the Amazon page, or the manufacturer's website. I have reached out to the manufacturer (MicRadar) via their website to request a datasheet or information on how to use it. I will update this review if I hear back from them. Their website has datasheets for a number of other boards that they make, so I'm guessing this one is still pretty new.

I originally had a far more in-depth review with links where you can find documentation on how to use this, but I was informed I'm apparently not allowed to do that. My original submission isn't available for me to edit, so this one's going to be much shorter because it'd take too much time to try to reproduce the original submission.The short of it: it technically works OK once you know how to use it, but it's essentially an EOL product you won't get much support for. You won't find documentation on the manufacturer's website (MicRadar) outside of a couple of pin labels, but a lot of the functionality of this module is available from the UART interface, and that is what's missing from their website. If you don't care about the much richer and more configurable serial interface, you can simply use the 2 pins in "interface 1" that go 3.3v high/low for "presence detected/undetected" and "target object is moving/still".The good news is this module is identical to a product sold by another brand, and their documentation is far more extensive. Just search for "MR24HPB1" if you need that documentation. You can even find a plugin for that in the Arduino IDE. The example is broken, but it's an easy fix, and the library itself still works. There's an updated version on Github, so I'd look there (and the link to that is somewhere in the documentation, IIRC).Since this appeared to be a clone (or maybe it's the other way around?), I'll provide what the module returned from the serial interface when I asked it for hardware versions, software versions, protocol versions, etc.- Device ID was simply 13 bytes' worth of 0xFF- Software version: G24VD2SYV010003 (naming scheme consistent with the MR24HPB1)- Hardware version: R24A- Protocol version: 0x01Considering how it's an unsupported, outdated module, $23 is a little too much IMO. If you specifically needed this module, or a replacement for the MR24HPB1, then I suppose it's not bad. Just be aware of this information before your purchase. I'm extremely annoyed that I had to spend so much time to hunt down some documentation, and that it wasn't even available on the manufacturer's own website, but hopefully other buyers of this module read this and save some time themselves.

This motion sensor works good!

Lidar is light based, this is RF based so it's called RADAR.This is also sold by others with another name and you can find the data on how to use this RADAR stuff there.The unit works well and is great for playing around and learning about radar cheaply.I have a few of these systems and love finding differnt ways to use them.

Perfect little fin module for thinking with microcontrollers and seems reliable enough for use in a future project I am planning