Hi,
Thanks for your suggestion. The problem was solved after I reverted the Ardusub back to 4.1.2. Yet, we are confronted with a new problem. The button assignment of the joystick went wrong. The light_brighter/light_dimmer become the command for mount tilt up/down for the camera and have several stop, while the sevo__1_inc/servo_1_dec become the command for lumen brighter/dimmer and are continuously controlled. I did not modify the wiring at all, so I wondered if it is software problem. I appreciate any assistance.
