I create a small ESP RC Switch to controll the Xiaomi Yi from your radio on the ground during a fpv flight. You can swich between foto mode and video and <a target="_blank" rel="noopener noreferrer" href="http://nothing.You">nothing.You</a> can find a video here:<a target="_blank" rel="noopener noreferrer" href="https://www.youtube.com/watch?v=xFy65uZmHA8The">https://www.youtube.com/watch?v=xFy65uZmHA8The</a> Arduino IDE Code for the ESP here: