The part that interests me most is the software on the PC. Specifically how it will integrate the video with the overlay and how to record both video and overlay in one file.
The ROV-Control V3 software has no record-function for videostream or overlay. It makes no sense because of bad quality. We recommend using gopro for high-quality video recording. You can control gopro-functions with the gopro-module coming up soon. There will be mission-data-log and analyzing-function in software soon, too.
For video-overlay simply use a usb-video-grabber to get livefeed on your computer.
If you have a light (LED or halogen) say, whose brightness is proportional to the turn of a potentiometer. When you turn the pot from 0, you may need to turn the pot to maybe 15% of its maximum value before the light begins to 'glow' or start lighting - that value should be mapped to zero. Likewise the light may reach its maximum brightness at 90% of the pot's maximum value - so that should be mapped to 100%. This way the pot will have a complete range for the light from 0 to 100% of the light's brightness and should provide finer control as you are not losing the bottom 15% and the top 10% of the pot's range. I hope that this makes sense.
Ref gyro - Thanks for clarifying the gyro function - using it to display ROV orientation is very useful.
To use it as an autopilot would be very interesting.
Ref video recording - from what you have said it sounds like you will be able to have a record of the video with the mission parameters in the future, great!
