Hi, you are way more advanced than myself. I am trying to hook up my gopro4 to use as a dropcam when we are out diving for wreck/seabed exploration.
So far just trying to get a video feed has proved a challenge. I have now established with both a genuine gopro and alternative cable that I can get the video out. I had a problem in that I was testing it connecting to my CCTV system and only got a black and white picture, as opposed to my CCTV camera giving me a colour picture, so I thought there was a problem with the cable. When the genuine gopro cable also just gave black and white I tried it to the composite connections on the back of my tv and got a colour picture. I then tried it through the yellow composite video connection on my AV reviever connected to my tv and got no picture at all. Most confusing.
I am looking at using a 7" tft monitor for a car reversing camera from fleabay as they are under £20, I don't imagine they will be up for use in bright sunlight and may have to do the head in the towel shade method.
I have an old dive torch housing that I am thinking of putting it all in, though I do like the look of the bluerobotics tubes.
Alternatively I have a raspberry pi and camera gathering dust somewhere, that might be a less expensive experiment in case of flooding. My goal would be to end up with a controllable rov, so maybe this is the better starting system.