I have extended the cables for the depth sensor (bar 30) to increase the length with just under 3 inches. When setting the ROV in depth hold mode I get an error message saying depth sensor not connected. Is the sensor very sensitive to the cable length ?
Yes, it is! It is I2C, the 12 inches we have already is pushing it to the limit.
Understood, thank you.
The cable length had nothing to do with it in this case (I suspect). A closer look on the BAR30 showed that the white and black wire had damage to it insulation jacket inside the connector just where it enters from the black sealant. The wires was there for in contact internally and against the connector. I have managed to separate them and have now filled the remaining of the sensor with resin. Hopefully that will solve the problem.