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pr2_controllers: control_toolbox | ethercat_trigger_controllers | joint_trajectory_action | pr2_calibration_controllers | pr2_controllers_msgs | pr2_gripper_action | pr2_head_action | pr2_mechanism_controllers | robot_mechanism_controllers | single_joint_position_action

Package Summary

The pr2_gripper_action provides an action interface for using the gripper. Users can specify what position to move to (while limiting the force) and the action will report success when the position is reached or failure when the gripper cannot move any longer.

pr2_controllers: control_toolbox | ethercat_trigger_controllers | joint_trajectory_action | pr2_calibration_controllers | pr2_controllers_msgs | pr2_gripper_action | pr2_head_action | pr2_mechanism_controllers | robot_mechanism_controllers | single_joint_position_action

Package Summary

The pr2_gripper_action provides an action interface for using the gripper. Users can specify what position to move to (while limiting the force) and the action will report success when the position is reached or failure when the gripper cannot move any longer.

pr2_controllers: control_toolbox | ethercat_trigger_controllers | joint_trajectory_action | pr2_calibration_controllers | pr2_controllers_msgs | pr2_gripper_action | pr2_head_action | pr2_mechanism_controllers | robot_mechanism_controllers | single_joint_position_action

Package Summary

The pr2_gripper_action provides an action interface for using the gripper. Users can specify what position to move to (while limiting the force) and the action will report success when the position is reached or failure when the gripper cannot move any longer.

pr2_controllers: control_toolbox | ethercat_trigger_controllers | joint_trajectory_action | pr2_calibration_controllers | pr2_controllers_msgs | pr2_gripper_action | pr2_head_action | pr2_mechanism_controllers | robot_mechanism_controllers | single_joint_position_action

Package Summary

The pr2_gripper_action provides an action interface for using the gripper. Users can specify what position to move to (while limiting the force) and the action will report success when the position is reached or failure when the gripper cannot move any longer.

pr2_controllers: control_toolbox | ethercat_trigger_controllers | joint_trajectory_action | pr2_calibration_controllers | pr2_controllers_msgs | pr2_gripper_action | pr2_head_action | pr2_mechanism_controllers | robot_mechanism_controllers | single_joint_position_action

Package Summary

The pr2_gripper_action provides an action interface for using the gripper. Users can specify what position to move to (while limiting the force) and the action will report success when the position is reached or failure when the gripper cannot move any longer.

Package Summary

The pr2_gripper_action provides an action interface for using the gripper. Users can specify what position to move to (while limiting the force) and the action will report success when the position is reached or failure when the gripper cannot move any longer.

  • Maintainer status: maintained
  • Maintainer: Devon Ash <dash AT clearpathrobotics DOT com>
  • Author: Stuart Glaser
  • License: BSD
pr2_controllers: control_toolbox | ethercat_trigger_controllers | joint_trajectory_action | pr2_calibration_controllers | pr2_controllers_msgs | pr2_gripper_action | pr2_head_action | pr2_mechanism_controllers | robot_mechanism_controllers | single_joint_position_action

Package Summary

The pr2_gripper_action provides an action interface for using the gripper. Users can specify what position to move to (while limiting the force) and the action will report success when the position is reached or failure when the gripper cannot move any longer.

  • Maintainer status: unmaintained
  • Maintainer: ROS Orphaned Package Maintainers <ros-orphaned-packages AT googlegroups DOT com>
  • Author: Stuart Glaser
  • License: BSD
  • Source: git https://github.com/pr2/pr2_controllers.git (branch: kinetic-devel)
pr2_controllers: control_toolbox | ethercat_trigger_controllers | joint_trajectory_action | pr2_calibration_controllers | pr2_controllers_msgs | pr2_gripper_action | pr2_head_action | pr2_mechanism_controllers | robot_mechanism_controllers | single_joint_position_action

Package Summary

The pr2_gripper_action provides an action interface for using the gripper. Users can specify what position to move to (while limiting the force) and the action will report success when the position is reached or failure when the gripper cannot move any longer.

  • Maintainer status: unmaintained
  • Maintainer: ROS Orphaned Package Maintainers <ros-orphaned-packages AT googlegroups DOT com>
  • Author: Stuart Glaser
  • License: BSD
  • Source: git https://github.com/pr2/pr2_controllers.git (branch: melodic-devel)
pr2_controllers: control_toolbox | ethercat_trigger_controllers | joint_trajectory_action | pr2_calibration_controllers | pr2_controllers_msgs | pr2_gripper_action | pr2_head_action | pr2_mechanism_controllers | robot_mechanism_controllers | single_joint_position_action

Package Summary

The pr2_gripper_action provides an action interface for using the gripper. Users can specify what position to move to (while limiting the force) and the action will report success when the position is reached or failure when the gripper cannot move any longer.

  • Maintainer status: unmaintained
  • Maintainer: ROS Orphaned Package Maintainers <ros-orphaned-packages AT googlegroups DOT com>
  • Author: Stuart Glaser
  • License: BSD
  • Source: git https://github.com/pr2/pr2_controllers.git (branch: melodic-devel)

gripper_action_topics.png

Users interested in grasping more delicate objects may want to checkout the alternative pr2_gripper_sensor_action package.

Usage

You can see an example of using the pr2 gripper action on the PR2 in the Moving the Gripper tutorial.

ROS API

The ROS API consists of three parts: private parameters, an action server that achieves gripper goals, and an interface to the gripper controller.

The Moving the Gripper tutorial provides more context on how the action and controller are launched and how action goals are interpreted.

Parameters

Parameters

~goal_threshold (double, default: 0.01) ~stall_timeout (double, default: 0.1) ~stall_velocity_threshold (double, default: 1e-6)

Action interface

Subscribed Topics

~gripper_action/goal (pr2_controllers_msgs/Pr2GripperCommandActionGoal) ~gripper_action/cancel (actionlib_msgs/GoalID)

Published Topics

~gripper_action/status (actionlib_msgs/GoalStatusArray) ~gripper_action/result (pr2_controllers_msgs/Pr2GripperActionResult)

Controller interface

Subscribed Topics

~state (pr2_controllers_msgs/JointControllerState)

Published Topics

~command (pr2_controllers_msgs/Pr2GripperCommand)


2019-07-13 12:59