At OpenROV one of the improvements that we have been developing for the next version of our controller board is a 9v PWM channel run through the auxiliary wires. This channel could be used to drive external lights, hydrophones, speakers, metal detectors, robotics arms etc. What are your thoughts on this improvement? Any advice, feedback, or experiences that you have already had with this issue?
Above is @Marius_Antares ROV fitted with a light bar and a hydrophone which are able to be powered because of the new controller board.