Remote operated underwater vehicle (ROV)controlled by an Arduino and built from simple to obtain parts, plumbing pipe for the frame, drainage pipe
for the main body, electric motors for thrusters There is also an onboard camera to see what’s going on underwater. Show underwater footage taken with it.
Plan to have 2 model ROV’s in a tank on my stall that the public can play with, powered by 3 small motors the model ROV can move in all directions
and perform simple tasks lifting a small weight and moving it around etc.
Read more about this maker at http://www.homebuiltrovs.com/rovforum/viewtopic.php?f=18&t=323