Bathtub testing of my 3rd version of a ROV. Solid metal wire passages through the hull for motor cables. An extra set of cables from the Gopro hero3 in through the hull. Need to add an extra floating compartment in the front. Some adjustments to the arduino to get more power from the motors. Would be nice with a water sensor inside. Tried this one: http://arduino.cc/forum/index.php/topic,5961.0.html
but didn't get it working. Also it seemed to drain a lot of power from the arduino. Maybe it was the led. Should a resistor be added to the led sercuit? Any othe suggestions for add ons for the ROV that I missed?