[Bluetooth 5.0 Accelerometer+Inclinometer] WT9011DCL MPU9250 High-Precision 9-axis Gyroscope+Angle(XY 0.2° Accuracy)+Magnetometer with Kalman Filter, Low-Power 3-axis AHRS IMU Sensor for Arduino

The sensor works great, USB-C to charge, lasts all day it seems. Connects via bluetooth and its simple. The software that comes with it (via google drive) is good. The company support is great. I had different needs on the scales in the graphing software and they updated the software and sent me a personal link with the update I needed. You can't beat that. The output can be several container types and I can import that sensor data to most other software no problem via CSV or txt, etc, and even Open Office reads it fine in SpreadSheets for custom graphing as needed (images included). Their custom software has great features (see my first image of all the real time data streaming in and graphing). I use this to measure acceleration changes to understand relationships of vibration and coupling as a form of tactile response with audio and transducers.

Feels like it might have spyware when you download a sketchy app from a google drive. but I ran it in a VM and it seems to be harmless.

The first thing I noticed about the device is its size—it’s incredibly small, about the size of a thick postage stamp, and light enough that you could use it on a drone. It is small enough to almost swallow though very much not recommended. After connecting it to my phone, I was able to see real-time metrics on its axis and movement in real time. My parents have a house that is built on wooden piers near a river, and it’s designed to flex slightly with the wind. I’ve occasionally noticed that during the dryer’s spin cycle, if I pay close attention, I can feel the house wobble ever so slightly. This device would be perfect for measuring that kind of movement, and I also plan to leave it in place during a hurricane while we safely evacuate. The data it collects should be as fascinating as it is likely terrifying.For the occasional creative and esoteric use I think this device is perfect. No hurricanes yet down here in the south but there will likely be some soon.

The product has some proprietary interface procedures that uses BT5 internally but doesn't adhere to it at the host interfaces. It wouldn't pair as a standard BT5. The custom implementation they have is very specific to Windows PC. Won't have much luck with other platforms.

What an amazing little device! I'm using it to measure involuntary leg movements at night (by taping it to my foot). It was a cinch to set up, and has worked perfectly so far. It's so small and light that I don't even notice it. I can imagine all sorts of potential applications in sports, beyond the industrial-type uses it was intended for. Highest recommendation to anyone interested in tracking and recording motion in 3d.

The package is supposed to include a QR code that leads you right to the correct software. Mine did not. Nor could I find an app by searching the Google Play store despite what their website says. And there's no download section on their website. Very frustrating. Eventually I found a YouTube video which told me to click on a certain symbol on their website which led me to a list of apps that were in zip format. Apparently with motion has many versions of this accelerometer and none of the apps had my exact product number so I chose the closest one. I had to use two programs to unzip it and get it to run.The label on the device has a different product number than what shows up on the Bluetooth list. Needless to say if I wasn't a power user and very interested in getting this thing to run I would have given up by now. But after about an hour I got the thing loaded onto my Android 13 phone and it looks pretty good, however there's no way to set and fix the range setting on their chart even though there's a button to do that it's not functional. Without this feature it will be hard to compare acceleration plots from the various devices I wish to try.Update April 2024: I tried again to contact this company because I was unable to use the recorder or even set permissions for file access. To my surprise they responded immediately (and how rare is that these days) and fixed the problem. For that I had to bump them up to five stars.