How to get the rms.py to run: This is based on a Ubuntu Distribution Install all the dependencies: (1. sudo apt-get install libglib2.0-dev) 2. sudo apt install python3-pip 3. sudo pip3 install setuptools carreralib bluepy pyqt5 flask python-vlc Starting the Application: Get the CU BT Address with the command: prompt> hcitool lescan Start the RMS with the CU Address as a command line option: promt> cd /<local folder with rms.py> prompt> python3 rms.py <CU BT or USB Address> for example in Ubuntu: promt> python3 rms.py dev/ttyUSB0 ensure user has the rights to write and read ttyUSB0 otherwise give him rights to do so or use sudo promt> sudo chmod a+rwx /dev/ttyUSB0 or prompt> python3 rms.py and input the CU BT Address in the Window that pops up or select the CU with a mouse Click in case QtBluetooth is working properly Happy Slotting