The protocol is not really that tough, but just a little challenging: It´s just sending byte arrays with commands and their corresponding values backwards and forwards. So, if you'd like to attempt it you, it basically will work like this… I haven’t experimented with it nonetheless but I do http://lego-hacks27272.blog2learn.com/7597157/the-smart-trick-of-lego-hacks-that-no-one-is-discussing