Hi. Kinda new member. I saw a video of one of the speakers at a Def-Con conference discussing countermeasures. He developed a lidar jammer using a Arduino switch connected to a infrared panel, similar to what you would find on a security cam. The device emitts pulses to give a reading of the current speed limit provided by an Android app that connects to the switch via bluetooth. A google search of the title will provide info and code. Won't defeat Dragoneye, per developer. Would love to hear experience with it. Thanks in advance.