[Gal Longin]

I would say according to the rules it's legal but it's useless.
in order to track the vision tetras, your robot should be able to move and when the robot is disabled it can't move.

another way which might work would be to connect the servo outputs from the camera to the analog inputs in the RC and then control the servo through the PWM output, in this case u can also use the signal from the servo to monitor the heading of your camera , which can be quite useful using some "smart" programming.