Hi Everyone,
I’m trying to connect Pixhawk Orange Cube and Raspberry Pi 4 via USB. And I watched this video " Make Your Own Pixhawk Raspberry Pi Drone in 36 Minutes (2020) | The Ultimate Project Drone - YouTube " and did exactly samething. I put a screenshot of terminal screen. As you can see there is a Link 1 Down error. Has anyone now the solution or reason of the problem.