Universal Robot Digital I/O

edit

I am using the ur_robot_driver, so this is exactly what I need. Thank you.

Hi, do you know how to use it in C++? Everything what I found about it was in Python. I am using UR10 with ur_robot_driver

@Lokney: it's all standard ROS services, which work from C++ as well.

See Writing a Simple Service and Client (C++) for the basic client tutorial. Make sure to update the used service definitions.

And looking at io_states is a good idea, but I'd recommend consulting the documentation in the service definition itself.

@gvdhoorn Thank you for quick answer and useful hints. Below I put part of code in case someone would look for it in future.

#include <ur_msgs/SetIO.h>
#include <ur_robot_driver/hardware_interface.h>

...

ros::ServiceClient io_client = node_handle.serviceClient<ur_msgs::SetIO>("/ur_hardware_interface/set_io");

ur_msgs::SetIO io_service;
io_service.request.fun = 1; // Specify what type of IO you want to control, 1 is digital output
io_service.request.pin = 0; // Pin number
io_service.request.state = 1;   // State, as far as I know it can be also voltage

if (io_client.call(gripper_service))
{
  ROS_INFO("Successfull D0 gripper IO states change.");
}
else
{
  ROS_ERROR("Failed to change D0 gripper IO states.");
}