This is a new 3Dprinted design I made for the 3’’ enclosure. It contains an arduino nano (a perforated board), raspberry zero, a powerline interface for controlling the rov at long distances and on the bottom 3 18650 Li-Io batteryes connected in series giving it 2.5Ah. This should give the ROV 30min to 1h of dive time.
Just made a new order to BlueRobotics since it seems I will have more than 4 cables going out from the enclosure.