This is an updated low cost small tethered remotely operated underwater vehicle. It is designed to work in small water tanks such as open stock tanks of 100 gallons or greater and bath tubs. The ROV is a 4 motor design with two horizontal thrusters and two vertical thrusters. The motors are completely exposed to the water and will work for several months depending on the quality of the water. The motors are inexpensive and easy to replace. A hook is included for the ROV to pick up and move objects. Soldering and simple hand tools are required for assembly. Requires 2 AA batteries.
Documents:
ROV Assembly Instructions (updated 3/5/2016)
The following documents show how to use and Arduino compatible processor and a joystick and push buttons to control the ROV. Speed control is included allowing finer control of the ROV. The GMU Experimenters kit and motor driver module are required.
Intro to Arduino Programming (updated 4/27/2016)