Your project looks fantastic!! I am interested in using a RPi 3 as you did to control a BuWizz V2 but I have no idea where to start. I control a "Brixo" lego smartbrick using bluetooth and python but it is very easy since there is a python library that I can directly use and an example program. I do not see anything similar for BuWizz. Could you share part of your program so I can imagine how to try it?