Homebuilt ROVs Forum

Another. 3-wire connection. Simpler to waterproof, more compact but less depth than the automotive type. The automotive type would be easier to use if you are willing to drill, tap and seal a hole in the hull. http://www.homebuiltrovs.com/rovforum/viewtopic.php?f=16&t=1612&p=9638&hilit=p...

Welcome, aquabot.

Hi TigerShark. I had a look at the truth table on the MAX485 data sheet. Tie the DE and RE pins on each board together. A high on the pins puts the board in transmit mode, and a low puts it in receive mode. If you are only sending down to the ROV then this is of course easy. For bi-directional singl...

Hi Bear. Spend some time looking through the "control systems and tethers" section of the forum to find out a bit about various control methods. Is the laptop element required as part of the course/grading? Depending on what you want to learn then a few buttons and an LCD connected to a to...

Hi Felix. In my experience fine control of ESC is possible, though I have not used the Robbe ESCs, only HobbyKing type. For submersible ROV use we could do much better than PWM control. Apparently Blue Robotics have I2C option, and before that a guy from the UK on this forum was working on his own E...

Hi Ricardo. I have not used the "one wire" devices or library/function before but am guessing it uses one of the timers. If so I suggest that you find out which Arduino timer (there are 3 in the Uno) is being used by the 18b20 or "one wire" library, and make sure that any other f...

Hi Vic. A simple 3-thruster ROV with better thruster design will have more maneuverability that what you have drawn. If you are going to go to the effort of having 8 thrusters, wiring and ESCs then you could design and make a much more maneuverable ROV. Actually, 8 thrusters is too many even for tha...

Hi subn00b - sound like you're off to a good start by doing the video-control-tether work first. The thrusters and chassis is in my opinion the easier bit. Will be interesting to see the wireless float in action.

Ross

Hello Vik. A bigger and slower turning prop will potentially offer more efficiency than the smaller higher-revving props that are usually used, but they are impractical due to their size, need for a gearbox, torque effect (making control difficult), and cost on a small ROV. Hence the common usage of...

Hi Mike. I like this ROV a lot. Very original. The funnel cowling is something I have employed though not for vertical. Videos are great, sci-fi quirky.