I like to make a ROV with Raspberry camera what else I need?

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1

I like to make a underwater ROV with Raspberry camera, what else I need?
Complete neewbie here…

What I need it’s a basic idea of what i need.

My Guess…

Enclosure — Camera Raspberry Pi 2 — (probably something between here) (need battery in enclosure ?) — Tether cable — Board with video interface + Ethernet/wifi/usb connectivity to computer — Probably some power source (I don’t think USB can do it) ?

2

You essentially need the complete ROV. Something like this would be a great start:
robotshop.com/en/bluerov-rem … e-kit.html
The electronics are not included, and most of the price is for the thrusters.
For control, Ethernet cable or fiber optics are best.
USB is best not used for power.