Hi Annin Robotics Community,
I'm excited to share that I've recently developed and released a ROS 2 driver for the AR4 robot arm. It uses ros2_control framework for robot control, MoveIt 2 for motion planning, and Rviz2 for user interface and visualization. It's available to use at https://github.com/ycheng517/ar4_ros_driver and will be actively developed and maintained. Check it out if you wish to tap into the power of ROS 2 with the AR4, and contributions are welcome!
I have tested this with the MK3, looks very promising and works. We are still working with @ycheng517 on calibration details, my joints are a little off.