I am working on a React app that will make use of 3 sensor data values in real time.
The data is sent through bluetooth from an nRF52840 chip.
However when I tried to integrate Noble into my React app I got errors with dependencies when Webpack was making a dll so I did not find a way to integrate it.
I tried the Web Bluetooth API instead using the example here: Web Bluetooth heart rate sensor I tried it out using a Polar H10 I have and that worked well, then I modified it to work with my sensor.
Now I can read sensor values into the browser, but I know they are the wrong values.. they are always around 50-60 ish and do not change as I change the sensor.
I am thinking I need some parsing code, like the heart rate sensor code. However that code is using bit-level & operations, flags and it is assuming little-endian data. I do not know if my data is little endian or not or other bit-level details so I would rather not write parsing code.
I know that Noble for example can read it out of the box so I want something similar, is this possible? Is there some kind of bluetooth standard for reading the data or is this hardware specific? There is no documentation on my hardware so I can't read about it. Here is the code I am currently using, similar to the heart rate sensor code: Bluetooth sensor reading code
There are standard Bluetooth services & characteristics, but any hardware may choose (or need) to use custom methods. There is no standard then, not even encoding style such as little/big endian or bytes vs strings.