<launch>
  <arg name="speed" default="0.5" />
  <arg name="robot_name" default="roisbot" />

  <node 
    name="teleop_keyboard"
    type="teleop_twist_keyboard.py"
    pkg="teleop_twist_keyboard"
    output="screen">
    <remap
      from="cmd_vel"
      to="/$(arg robot_name)/diff_drive_controller/cmd_vel" />
    <param 
      name="speed"
      value="$(arg speed)" />
  </node>
</launch>
