This is a quick test that uses Node.js and Socket.io to display the orientation of a Texas Instruments Sensortag.
Should work in desktops/laptops/boxes that support Bluetooth LE.
Note that there's no calibration functionality, so the orientation is probably slightly off.
Install
npm install
Turn on the sensortag an run the server
node index.js
Open the client in web browser
open http://localhost:8080/