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2014-01-28 17:26:58 -0500 | marked best answer | Communicate with different Client Libraries Hi All. now, I understand concept of node. this page shows that below. And, rosjava uses node also. So I think rosjava node communicate with roscpp node. Is It right? I cannot see the tutorial that communicate with rosjava and roscpp.. TT |
2014-01-28 17:26:53 -0500 | marked best answer | Can I make the new rosjava project that send the message through existing node? Hello. I have a question. When I enter the command 'roslaunch turtlebot_teleop keyboard_teleop.launch', I can see the node '/turtlebot_node, /turtlebot_teleop_keyboard'. So I think, If I make the new rosjava project that send the message through '/turtlebot_teleop_keyboard' node, I can actuate the TURTLEBOT using my rosjava project. Is it possible? |
2014-01-28 17:26:49 -0500 | marked best answer | Howto implement a teleop node using rosjava? hello.. i want to make new project. the project is 'turtlebot teleoperation' using rosjava. so i'm searching http://docs.rosjava.googlecode.com/hg/rosjava_core/html/javadoc/index-all.html this page. but i cannot find adjust API 'move, stop, turn etc...' How can i make it? or Where can i get the example source? please help me. thank you |
2014-01-28 17:26:37 -0500 | marked best answer | rosjava install fail hi. i have a question i'm setting up rosjava now using this page. http://docs.rosjava.googlecode.com/hg/rosjava_core/html/installing.html but.. FAIL !! please tell me the reason... i don't know why..TT.. |
2014-01-28 17:25:53 -0500 | marked best answer | rosjava wifi scanning hello.. i have a question.. how can i make the project that wifi-scanning in rosjava ? i search the API in http://docs.rosjava.googlecode.com/hg/rosjava_core/html/javadoc/index.html but i cannot find valid method.. can i use android lib in rosjava? or.. is there other way? |
2014-01-28 17:25:06 -0500 | marked best answer | RViz Camera & Point Cloud2 I connect my kinect to usb 3.0 port in my netbook.. and I want to use RViz so i follow this page http://www.ros.org/wiki/turtlebot/Tutorials/Looking%20at%20Camera%20Data but i have a problem.. Status of camera and point cloud2 are warning. i already choose the topic.. Camera : /camera/rgb/image_color and PointCloud2 : /camera/rgb/points but the screen just show "No Image" i use Ubuntu 11.10 now.. how can i fix it? |
2014-01-28 17:25:05 -0500 | marked best answer | USB 3.0 Kinect hello everyone ! I have a question.. I want to do this tutorial "http://www.ros.org/wiki/turtlebot/Tutorials/Looking%20at%20Camera%20Data" but.. when i enter this command "roslaunch turtlebot_bringup kinect.launch", i cannot connect to kinect.. My usb-port is 3.0.. I think it is matter.. how can i connect ? or change ? this problem? t.t |
2014-01-28 17:25:04 -0500 | marked best answer | Start Turtlebot Hello I'm Korean Student. So I cannot speak English very well. Please excuse me.. I want to setup turtlebot.. so i did do this page step by step. http://ros.org/wiki/Robots/TurtleBot/Robot%20Setup http://ros.org/wiki/Robots/TurtleBot/SDK%20Setup http://ros.org/wiki/Robots/TurtleBot/Network%20Setup Complete.. And I connect my netbook to Turtlebot. And Enter the command "roscore" -> (another terminal) "sudo service turtlebot start" and I see the message "service start pid : 123" like this.. but When i enter the command "rostopic list", the message is just "/ros" and "/ros_arg" like this.. i mean that service of turtlebot cannot start.. i don't know why.. please help me t.t |
2014-01-28 17:25:01 -0500 | marked best answer | ERROR: Unable to communicate with master! Hello. I'm Korean student. So i cannot speak English very well. Thank you for your consideration. I am setting Turtlebot on my netbook and my notebook (Network Connection) http://www.ros.org/wiki/Robots/TurtleBot/Network%20Setup My netbook is TurtleBot laptop. My notebook is Workstation. I am able to ping each other. One is 192.168.0.67 and another is 192.168.0.63 and i can see "echo $ROS_MASTER_URI" and "echo $ROS_HOSTNAME". "turtlebot start/running, process 16951" also. but when i enter the command "rostopic list", i see "ERROR: Unable to communicate with master!" I don't know why.. because when i set "Network Setup" first time, there work correctly.. but after the reboot, i cannot do anything.. Please help me ~.~ |
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