This may have already been done but I spent some time to decode the Zigbee protocol and was successful. I have a video showing the project and how I did it. You can download the spreadsheet for the protocol. I haven't figured out everything but most of it. So help would be awesome! http://www.codemakesitgo.com/wp-content/uploads/2019/02/Yuneec-Protocol.xlsx This protocol includes the ST10 & ST10+ controller and the Q500 quad. This information allows us to be able to fly the quad using Google Earth as a navigation aid (as in the video) or to even write our own custom controller! Here is the video, hope you enjoy.