As we've discussed before, we've been using the BeagleBone as the embedded system for the ROV. We're currently designing a cape (you can read more about capes here) to break out to the microcontroller that will supply servo output to control the ESCs for the brushless motors and host other peripherals like a pressure sensor or robotic arm.
In this short video, Bran and Eric discuss the progress they've made:
Bran posted a comment in the forums with a further update. We're currently exploring the best way to upload and share the PCB design. Looks like Upverter is the best bet.
As always, if you have any ideas or feedback feel free to chime in.