(This is a temp instruction before the reorg)
Build and source the canadarm package:
ros2 launch canadarm canadarm.launch.py
To move the arm to an outstretched pose:
ros2 service call /open_arm std_srvs/srv/Empty
To move the arm to its default (close) pose of all zeros:
ros2 service call /close_arm std_srvs/srv/Empty
To move the arm to a random pose:
ros2 service call /random_arm std_srvs/srv/Empty