Gopro9 to Rsapberry

Hello everyone, I’m a beginner. After two weeks of building a simple ROV, I tested it underwater and found the camera quality very poor. I happen to own a GoPro Hero9. Could anyone explain how to connect the GoPro Hero9 to a Raspberry Pi 3B and display real-time video in QGroundControl (QGC)?

Hi @Rovjd -
Welcome to the forums!
While it is easy to imagine, accomplishing that is likely not (easily) possible! The Pi 3B is not a very powerful computer, and the GoPro Hero9 only has HDMI out. A USB capture card and Raspberry Pi 4/5 might have enough CPU for this, but accommodating the camera and a connection to it underwater is also a (typically expensive) challenge!
Blue Robotics R&D is hard at work on a major camera upgrade, that will launch sometime this year if all goes well…