Hi recently I use our library on MacMini to development an app with data from Acc-Gyro-Magn... and work fine. After it works install the same app on a Raspberry Pi 3 B, and when I try to use the app, the library not recognize any change on movement, only detect change on buttons of sensortag. I use node -v v8.12.0 and library version and the last version of library. If you wish can I share verbose log on DEBUG mode that's not activity on sensor, only when I press the buttons but not in Acc-Gyro-Magn....
regards.
PS: I try to use another bluetooth dongle and I have the same result...