This small programm creates a simple joystick which controls the turtlesim_node. This example fits right in with the ros2 turtlesim tutorial.

Note: This node is not continuously sending. It will send a new twist command on change of the joystick.

Terminal1 :

ros2 run ros_nicegui_turtlesim_joystick joystick 

Terminal2 :

ros2 run turtlesim turtlesim_node