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how to control gen3_lite_2f gripper via ros_control #323
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Hi @yuweiDu , Could you provide more information on what command you ran ?
From the error messages, it looks like a comm issue, but I would like to try and reproduce this on my side. Are you able to reach the arm through the WebApp ? If so, can you open/close the gripper from there ? |
Hi @smoya23 ,
By the WebApp, I don' know where to control the gripper. But I can control the gripper by calling the service /my_gen3_lite/base/send_gripper_command. I think the connection is good here. Thank you! |
@yuweiDu Are you able to run our driver and control the gripper, by launching this command?
To control the gripper from the WebApp, you move the slider on the bottom of the page when you open either the If you're able to control the gripper through the service, when exactly are you getting this error ? Is it happenning as soon as you're launching your launch file ? |
I use ros_control for gen3_lite control. The hardware interface is used as (https://github.com/empriselab/kortex_hardware). The arm joints work well but something goes wrong with the gripper. I always get the error as:
It seems that the error is related to
BaseClient::SendGripperCommand
. My OS is Ubuntu 20.04 and ROS is Noetic.Thanks in advance for any help.
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