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2019-05-01 08:06:33 -0500 asked a question Finding RPM of a wheel in differential drive simulation

Finding RPM of a wheel in differential drive simulation I want to find RPM of the wheels for a differential drive model

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2018-05-25 06:58:56 -0500 marked best answer What is the difference between different controllers provided in ros_control?

As mentioned in the official documentation, the list of available controllers are:

  • effort_controllers
    • joint_effort_controller
    • joint_position_controller
    • joint_velocity_controller
  • joint_state_controller
    • joint_state_controller
  • position_controllers
    • joint_position_controller
  • velocity_controllers
    • joint_velocity_controller

I want to know the difference between effort_controllers/joint_position_controller and position_controllers/joint_position_controller and how to use a position controller and which of the above to use?

My application is a joint velocity control of a two link manipulator in Gazebo using ROS Control.

I'm using ROS Kinetic with Ubuntu 16.04 LTS. Gazebo version is 7.12

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2018-05-25 02:32:50 -0500 asked a question What is the difference between different controllers provided in ros_control?

What is the difference between different controllers provided in ros_control? As mentioned in the official documentation

2018-04-09 14:08:01 -0500 commented answer ImportError: No module named rospkg

Worked for me. I installed rospkg and catkin_package via pip

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