DIY ROV Submarine
This yellow submarine isn’t exactly the same one as John and Paul sang about but it is an extremely impressive DIY ROV submarine with built in camera.
Made completely out of PVC pipes with some pumps tossed in to help it move and sink, this project and easily be put together by anyone with some spare cash and time.
The entire sub is controlled by an Atmel Mega32 microcontroller. The video fee and system control is fed to the surface using a cable (they say that wireless video as well as leak detection and torpedos is a future add-on).
This is a great project that will bring you hours and hours of fun.