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2020-09-08 14:22:06 -0500 received badge ● Nice Question (source)
2019-09-20 02:15:24 -0500 marked best answer Removing MEGA 2560 and going straight from pc to stm robot.

My school made a custom stm board and they gave me the codes for the stm imported it. But now, they also gave me the node file for ROS, how do I "install" the node? I'm very new at this any advice would help. thanks
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2017-02-10 00:43:47 -0500 commented question 2D nav goal doesn't work

Thank you, now I know.
2017-02-09 23:42:24 -0500 asked a question 2D nav goal doesn't work

I have been given the task to fix this custom robot to have the ability to use the 2D nav goal

this has been a project handed down student to student

There is an existing roslaunch that activates all the nodes however 2D nav goal does not work

Here is the roslaunch code and keyboard teleop as well I was told that I need to launch both to achieve 2D nav goal

yinht@yinht-desktop:~$ roslaunch hostbot hostbot.launch
... logging to /home/yinht/.ros/log/475151fc-ef50-11e6-a633-00215cbf656c/roslaunch-yinht-desktop-12680.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://yinht-desktop:42810/

SUMMARY
========

PARAMETERS
 * /amcl/gui_publish_rate: 10.0
 * /amcl/kld_err: 0.05
 * /amcl/kld_z: 0.99
 * /amcl/laser_lambda_short: 0.1
 * /amcl/laser_likelihood_max_dist: 2.0
 * /amcl/laser_max_beams: 30
 * /amcl/laser_model_type: likelihood_field
 * /amcl/laser_sigma_hit: 0.2
 * /amcl/laser_z_hit: 0.5
 * /amcl/laser_z_max: 0.05
 * /amcl/laser_z_rand: 0.5
 * /amcl/laser_z_short: 0.05
 * /amcl/max_particles: 5000
 * /amcl/min_particles: 500
 * /amcl/odom_alpha1: 0.2
 * /amcl/odom_alpha2: 0.2
 * /amcl/odom_alpha3: 0.8
 * /amcl/odom_alpha4: 0.2
 * /amcl/odom_alpha5: 0.1
 * /amcl/odom_frame_id: odom
 * /amcl/odom_model_type: omni
 * /amcl/recovery_alpha_fast: 0.0
 * /amcl/recovery_alpha_slow: 0.0
 * /amcl/resample_interval: 1
 * /amcl/transform_tolerance: 0.1
 * /amcl/update_min_a: 0.5
 * /amcl/update_min_d: 0.2
 * /arduino/baud: 115200
 * /arduino/port: /dev/ttyUSB0
 * /camera/camera_nodelet_manager/num_worker_threads: 4
 * /camera/depth_rectify_depth/interpolation: 0
 * /camera/driver/auto_exposure: True
 * /camera/driver/auto_white_balance: True
 * /camera/driver/color_depth_synchronization: False
 * /camera/driver/depth_camera_info_url: 
 * /camera/driver/depth_frame_id: camera_depth_opti...
 * /camera/driver/depth_registration: False
 * /camera/driver/device_id: #1
 * /camera/driver/rgb_camera_info_url: 
 * /camera/driver/rgb_frame_id: camera_rgb_optica...
 * /diffusion_tf/angle_std_mean_deviation_deg: 10
 * /diffusion_tf/angular_scale: 1.0
 * /diffusion_tf/base_frame_id: base_link
 * /diffusion_tf/base_width: 0.34
 * /diffusion_tf/linear_scale: 1.0
 * /diffusion_tf/odom_frame_id: odom
 * /diffusion_tf/pos_std_mean_deviation: 0.1
 * /diffusion_tf/publish_tf: True
 * /diffusion_tf/rate: 40
 * /diffusion_tf/vit_ang_std_mean_deviation_deg: 3
 * /diffusion_tf/vit_std_mean_deviation_deg: 1
 * /hokuyo_laser/calibrate_time: False
 * /hokuyo_laser/frame_id: base_laser_link
 * /hokuyo_laser/intensity: False
 * /hokuyo_laser/max_ang: 1.4
 * /hokuyo_laser/min_ang: -1.4
 * /hokuyo_laser/port: /dev/ttyACM0
 * /move_base/TrajectoryPlannerROS/acc_lim_theta: 3.0
 * /move_base/TrajectoryPlannerROS/acc_lim_x: 2.0
 * /move_base/TrajectoryPlannerROS/acc_lim_y: 0.0
 * /move_base/TrajectoryPlannerROS/angular_sim_granularity: 0.025
 * /move_base/TrajectoryPlannerROS/dwa: True
 * /move_base/TrajectoryPlannerROS/escape_vel: -0.05
 * /move_base/TrajectoryPlannerROS/gdist_scale: 0.6
 * /move_base/TrajectoryPlannerROS/heading_lookahead: 0.325
 * /move_base/TrajectoryPlannerROS/heading_scoring: False
 * /move_base/TrajectoryPlannerROS/heading_scoring_timestep: 0.8
 * /move_base/TrajectoryPlannerROS/holonomic_robot: False
 * /move_base/TrajectoryPlannerROS/latch_xy_goal_tolerance: False
 * /move_base/TrajectoryPlannerROS/max_rotational_vel: 0.15
 * /move_base/TrajectoryPlannerROS/max_vel_theta: 0.15
 * /move_base/TrajectoryPlannerROS/max_vel_x: 0.3
 * /move_base/TrajectoryPlannerROS/max_vel_y: 0.0
 * /move_base/TrajectoryPlannerROS/meter_scoring: True
 * /move_base/TrajectoryPlannerROS/min_in_place_vel_theta: 0.5
 * /move_base/TrajectoryPlannerROS/min_vel_theta: -0.15
 * /move_base/TrajectoryPlannerROS/min_vel_x: 0.1
 * /move_base/TrajectoryPlannerROS/min_vel_y: 0.0
 * /move_base/TrajectoryPlannerROS/occdist_scale: 0.1
 * /move_base/TrajectoryPlannerROS/oscillation_reset_dist: 0.05
 * /move_base/TrajectoryPlannerROS/pdist_scale: 0.8
 * /move_base/TrajectoryPlannerROS/prune_plan: True
 * /move_base/TrajectoryPlannerROS/publish_cost_grid_pc: False
 * /move_base/TrajectoryPlannerROS/sim_granularity: 0.025
 * /move_base/TrajectoryPlannerROS/sim_time: 1.0
 * /move_base/TrajectoryPlannerROS/simple_attractor: False
 * /move_base/TrajectoryPlannerROS/vtheta_samples: 20
 * /move_base/TrajectoryPlannerROS/vx_samples: 8
 * /move_base/TrajectoryPlannerROS/vy_samples: 0
 * /move_base/TrajectoryPlannerROS/xy_goal_tolerance: 0.3
 * /move_base/TrajectoryPlannerROS/yaw_goal_tolerance: 0.15
 * /move_base/clearing_rotation_allowed: False
 * /move_base/controller_frequency: 5.0
 * /move_base/global_costmap/footprint: [[0.2, 0.2], [0 ...
(more)
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2017-02-09 02:30:36 -0500 commented question Robot does not listen to 2d pose estimate

Type: geometry_msgs/PoseWithCovarianceStamped

Publishers: * /rviz_1486627152348467684 ( http://yinht-desktop:41402/ )

Subscribers: * /amcl ( http://yinht-desktop:42593/ )

When I try to rostopic echo /initialpose it gives a warning that it has not been published yet
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2017-02-09 02:21:21 -0500 commented question Robot does not listen to 2d pose estimate

I updated the question with the rosnode info /rviz_ sorry I tried using the preformatted text button but it didn't work
2017-02-09 02:06:36 -0500 commented question Robot does not listen to 2d pose estimate

Node [/rviz_5467461351] Publications: None

Subscriptions: None

Services: None

cannot contact [/rviz_5467461351]: unknown node
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2017-02-09 01:55:50 -0500 commented question Robot does not listen to 2d pose estimate

rviz is running
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2017-02-09 01:46:56 -0500 commented question Robot does not listen to 2d pose estimate

yes I am using amcl, initialpose has a connection to the /amcl. I am not using a remote machine it's on the same PC. I will post my rqt_graph if that helps
2017-02-08 23:40:25 -0500 asked a question Robot does not listen to 2d pose estimate

when I try to tell it's 2d pose estimate it just stays where it is and show particle clouds around it's wrong location.

that is shown in this image.

I am very new to ros and i'm running out of time where learning step by step is more or less out of my options any help would be appreciated 

    yinht@yinht-desktop:~$ rosnode info /rviz_1486627152348467684 
--------------------------------------------------------------------------------
Node [/rviz_1486627152348467684]
Publications: 
 * /initialpose [geometry_msgs/PoseWithCovarianceStamped]
 * /rosout [rosgraph_msgs/Log]
 * /goal [geometry_msgs/PoseStamped]

Subscriptions: 
 * /camera/rgb/image_raw [sensor_msgs/Image]
 * /scan2 [unknown type]
 * /move_base/local_costmap/footprint [geometry_msgs/PolygonStamped]
 * /tf [tf2_msgs/TFMessage]
 * /scan [sensor_msgs/LaserScan]
 * /tf_static [tf2_msgs/TFMessage]
 * /particlecloud [geometry_msgs/PoseArray]
 * /map_updates [unknown type]
 * /map [nav_msgs/OccupancyGrid]

Services: 
 * /rviz_1486627152348467684/get_loggers
 * /rviz_1486627152348467684/reload_shaders
 * /rviz_1486627152348467684/set_logger_level


contacting node http://yinht-desktop:41402/ ...
Pid: 27477
Connections:
 * topic: /rosout
    * to: /rosout
    * direction: outbound
    * transport: TCPROS
 * topic: /tf
    * to: /diffusion_tf (http://yinht-desktop:38259/)
    * direction: inbound
    * transport: TCPROS
 * topic: /tf
    * to: /camera_base_link2 (http://yinht-desktop:46817/)
    * direction: inbound
    * transport: TCPROS
 * topic: /tf
    * to: /amcl (http://yinht-desktop:42593/)
    * direction: inbound
    * transport: TCPROS
 * topic: /tf
    * to: /camera_base_link (http://yinht-desktop:37021/)
    * direction: inbound
    * transport: TCPROS
 * topic: /tf
    * to: /camera_base_link3 (http://yinht-desktop:43573/)
    * direction: inbound
    * transport: TCPROS
 * topic: /tf
    * to: /camera_base_link1 (http://yinht-desktop:35271/)
    * direction: inbound
    * transport: TCPROS
 * topic: /tf
    * to: /robot_state_publisher (http://yinht-desktop:38135/)
    * direction: inbound
    * transport: TCPROS
 * topic: /tf_static
    * to: /robot_state_publisher (http://yinht-desktop:38135/)
    * direction: inbound
    * transport: TCPROS
 * topic: /particlecloud
    * to: /amcl (http://yinht-desktop:42593/)
    * direction: inbound
    * transport: TCPROS
 * topic: /camera/rgb/image_raw
    * to: /camera/camera_nodelet_manager (http://yinht-desktop:41082/)
    * direction: inbound
    * transport: TCPROS
 * topic: /move_base/local_costmap/footprint
    * to: /move_base (http://yinht-desktop:34315/)
    * direction: inbound
    * transport: TCPROS
 * topic: /map
    * to: /map_server (http://yinht-desktop:41602/)
    * direction: inbound
    * transport: TCPROS
 * topic: /scan
    * to: /hokuyo_laser (http://yinht-desktop:44867/)
    * direction: inbound
    * transport: TCPROS

image descriptionimage description
2017-02-08 21:55:25 -0500 asked a question How to make 2D nav goal work

I'm a student working on my final year project all I have to do is make this custom robot to move using 2d nav goal however, the robot just doesn't move where I want it to i'm very close to the deadline and freaking out any help would be appreciated.

This is the launch file that my seniors have been working on 

yinht@yinht-desktop:~$ roslaunch hostbot hostbot.launch
... logging to /home/yinht/.ros/log/79283f6a-ee79-11e6-bbfe-00215cbf656c/roslaunch-yinht-desktop-2930.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://yinht-desktop:39397/

SUMMARY
========

PARAMETERS
 * /amcl/gui_publish_rate: 10.0
 * /amcl/kld_err: 0.05
 * /amcl/kld_z: 0.99
 * /amcl/laser_lambda_short: 0.1
 * /amcl/laser_likelihood_max_dist: 2.0
 * /amcl/laser_max_beams: 30
 * /amcl/laser_model_type: likelihood_field
 * /amcl/laser_sigma_hit: 0.2
 * /amcl/laser_z_hit: 0.5
 * /amcl/laser_z_max: 0.05
 * /amcl/laser_z_rand: 0.5
 * /amcl/laser_z_short: 0.05
 * /amcl/max_particles: 5000
 * /amcl/min_particles: 500
 * /amcl/odom_alpha1: 0.2
 * /amcl/odom_alpha2: 0.2
 * /amcl/odom_alpha3: 0.8
 * /amcl/odom_alpha4: 0.2
 * /amcl/odom_alpha5: 0.1
 * /amcl/odom_frame_id: odom
 * /amcl/odom_model_type: omni
 * /amcl/recovery_alpha_fast: 0.0
 * /amcl/recovery_alpha_slow: 0.0
 * /amcl/resample_interval: 1
 * /amcl/transform_tolerance: 0.1
 * /amcl/update_min_a: 0.5
 * /amcl/update_min_d: 0.2
 * /arduino/baud: 115200
 * /arduino/port: /dev/ttyUSB0
 * /camera/camera_nodelet_manager/num_worker_threads: 4
 * /camera/depth_rectify_depth/interpolation: 0
 * /camera/driver/auto_exposure: True
 * /camera/driver/auto_white_balance: True
 * /camera/driver/color_depth_synchronization: False
 * /camera/driver/depth_camera_info_url: 
 * /camera/driver/depth_frame_id: camera_depth_opti...
 * /camera/driver/depth_registration: False
 * /camera/driver/device_id: #1
 * /camera/driver/rgb_camera_info_url: 
 * /camera/driver/rgb_frame_id: camera_rgb_optica...
 * /diffusion_tf/angle_std_mean_deviation_deg: 10
 * /diffusion_tf/angular_scale: 1.0
 * /diffusion_tf/base_frame_id: base_link
 * /diffusion_tf/base_width: 0.34
 * /diffusion_tf/linear_scale: 1.0
 * /diffusion_tf/odom_frame_id: odom
 * /diffusion_tf/pos_std_mean_deviation: 0.1
 * /diffusion_tf/publish_tf: True
 * /diffusion_tf/rate: 40
 * /diffusion_tf/vit_ang_std_mean_deviation_deg: 3
 * /diffusion_tf/vit_std_mean_deviation_deg: 1
 * /hokuyo_laser/calibrate_time: False
 * /hokuyo_laser/frame_id: base_laser_link
 * /hokuyo_laser/intensity: False
 * /hokuyo_laser/max_ang: 1.4
 * /hokuyo_laser/min_ang: -1.4
 * /hokuyo_laser/port: /dev/ttyACM0
 * /move_base/TrajectoryPlannerROS/acc_lim_theta: 3.0
 * /move_base/TrajectoryPlannerROS/acc_lim_x: 2.0
 * /move_base/TrajectoryPlannerROS/acc_lim_y: 0.0
 * /move_base/TrajectoryPlannerROS/angular_sim_granularity: 0.025
 * /move_base/TrajectoryPlannerROS/dwa: True
 * /move_base/TrajectoryPlannerROS/escape_vel: -0.05
 * /move_base/TrajectoryPlannerROS/gdist_scale: 0.6
 * /move_base/TrajectoryPlannerROS/heading_lookahead: 0.325
 * /move_base/TrajectoryPlannerROS/heading_scoring: False
 * /move_base/TrajectoryPlannerROS/heading_scoring_timestep: 0.8
 * /move_base/TrajectoryPlannerROS/holonomic_robot: False
 * /move_base/TrajectoryPlannerROS/latch_xy_goal_tolerance: False
 * /move_base/TrajectoryPlannerROS/max_rotational_vel: 0.15
 * /move_base/TrajectoryPlannerROS/max_vel_theta: 0.15
 * /move_base/TrajectoryPlannerROS/max_vel_x: 0.3
 * /move_base/TrajectoryPlannerROS/max_vel_y: 0.0
 * /move_base/TrajectoryPlannerROS/meter_scoring: True
 * /move_base/TrajectoryPlannerROS/min_in_place_vel_theta: 0.5
 * /move_base/TrajectoryPlannerROS/min_vel_theta: -0.15
 * /move_base/TrajectoryPlannerROS/min_vel_x: 0.1
 * /move_base/TrajectoryPlannerROS/min_vel_y: 0.0
 * /move_base/TrajectoryPlannerROS/occdist_scale: 0.1
 * /move_base/TrajectoryPlannerROS/oscillation_reset_dist: 0.05
 * /move_base/TrajectoryPlannerROS/pdist_scale: 0.8
 * /move_base/TrajectoryPlannerROS/prune_plan: True
 * /move_base/TrajectoryPlannerROS/publish_cost_grid_pc: False
 * /move_base/TrajectoryPlannerROS/sim_granularity: 0.025
 * /move_base/TrajectoryPlannerROS/sim_time: 1.0
 * /move_base/TrajectoryPlannerROS/simple_attractor: False
 * /move_base/TrajectoryPlannerROS/vtheta_samples: 20
 * /move_base/TrajectoryPlannerROS/vx_samples: 8
 * /move_base/TrajectoryPlannerROS/vy_samples: 0
 * /move_base/TrajectoryPlannerROS/xy_goal_tolerance: 0.3
 * /move_base/TrajectoryPlannerROS/yaw_goal_tolerance: 0.15
 * /move_base/clearing_rotation_allowed: False
 * /move_base/controller_frequency: 5.0
 * /move_base/global_costmap/footprint: [[0.2, 0.2], [0.2...
 * /move_base/global_costmap/global_frame: /map
 * /move_base/global_costmap ...
(more)
2017-02-08 02:21:25 -0500 commented question RViz 2d Nav Goal sends robot backwards

@ahendrix : I increased the speed of the x-vel to 0.30 now the robot appears to be moving but in the opposite direction I want it to.
2017-02-08 02:18:40 -0500 commented question RViz 2d Nav Goal sends robot backwards

@ahendrix : there is an increase in x-vel although it appears that the robot just shakes in place. any idea why?
2017-02-07 22:03:58 -0500 commented question RViz 2d Nav Goal sends robot backwards

@burf2000 that wouldn't make sense since the robot works fine using keyboard movement.
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2017-02-06 21:46:20 -0500 commented question RViz 2d Nav Goal sends robot backwards

This is the rqt_graph of the custom launch file my senior made blob: https://web.whatsapp.com/dc0d34ac-314...
2017-02-06 21:32:12 -0500 commented question RViz 2d Nav Goal sends robot backwards

it's a custom robot, it was a handed down project, where do I find cmd_vel topic? the custom robot is able to do "roslaunch rbx_1_nav keyboard_teleop.launch" where i'm able to move the robot around with a keyboard along with a custom launch file which activates the nodes as far as i'm aware
2017-02-06 20:51:12 -0500 asked a question RViz 2d Nav Goal sends robot backwards

When I try to use the 2D Nav Goal the robot starts reversing at pretty high speeds.

Any guides on where to start to solve the problem?

Ask me for any launch files and such that you need to see as i'm new to ROS.

Thank you in advance.

this is a picture of the rqt_graph

image description
2017-02-06 05:35:16 -0500 received badge ● Student (source)
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2017-01-23 21:21:53 -0500 asked a question *.cfg: permission denied while building workspace

I am making a custom robot for my final year project, for the robot to work, I was given a custom catkin_ws file. I followed the steps mention here

http://answers.ros.org/question/19390...

and after following the steps, this occurred. 

ros@ros-desktop:~/catkin_ws$ catkin_make
Base path: /home/ros/catkin_ws
Source space: /home/ros/catkin_ws/src
Build space: /home/ros/catkin_ws/build
Devel space: /home/ros/catkin_ws/devel
Install space: /home/ros/catkin_ws/install
####
#### Running command: "make cmake_check_build_system" in "/home/ros/catkin_ws/build"
####
####
#### Running command: "make -j4 -l4" in "/home/ros/catkin_ws/build"
####
[  0%] [  0%] Built target _rosserial_arduino_generate_messages_check_deps_Test
Built target _rosserial_arduino_generate_messages_check_deps_Adc
[  0%] Built target _rosserial_msgs_generate_messages_check_deps_Log
[  0%] Built target _rosserial_msgs_generate_messages_check_deps_RequestParam
[  6%] Built target serial
[ 11%] Built target merlin_hostbot
[ 11%] [ 11%] Built target _rosserial_msgs_generate_messages_check_deps_RequestMessageInfo
Built target _rosserial_msgs_generate_messages_check_deps_TopicInfo
[ 11%] Built target _rosserial_msgs_generate_messages_check_deps_RequestServiceInfo
[ 13%] Built target quaternion2yaw_node
[ 16%] [ 20%] Built target stm_hostbot
Generating dynamic reconfigure files from cfg/CalibrateAngular.cfg: /home/ros/catkin_ws/devel/include/rbx1_nav/CalibrateAngularConfig.h /home/ros/catkin_ws/devel/lib/python2.7/dist-packages/rbx1_nav/cfg/CalibrateAngularConfig.py
/home/ros/catkin_ws/build/rbx1/rbx1_nav/setup_custom_pythonpath.sh: 4: exec: /home/ros/catkin_ws/src/rbx1/rbx1_nav/cfg/CalibrateAngular.cfg: Permission denied
make[2]: * [/home/ros/catkin_ws/devel/include/rbx1_nav/CalibrateAngularConfig.h] Error 126
make[1]: * [rbx1/rbx1_nav/CMakeFiles/rbx1_nav_gencfg.dir/all] Error 2
make[1]: * Waiting for unfinished jobs....
[ 23%] [ 25%] Built target urg_c_wrapper
Generating dynamic reconfigure files from cfg/URG.cfg: /home/ros/catkin_ws/devel/include/urg_node/URGConfig.h /home/ros/catkin_ws/devel/lib/python2.7/dist-packages/urg_node/cfg/URGConfig.py
/home/ros/catkin_ws/build/urg_node/setup_custom_pythonpath.sh: 4: exec: /home/ros/catkin_ws/src/urg_node/cfg/URG.cfg: Permission denied
make[2]: * [/home/ros/catkin_ws/devel/include/urg_node/URGConfig.h] Error 126
make[1]: * [urg_node/CMakeFiles/urg_node_gencfg.dir/all] Error 2
[ 27%] Built target user_publisher
make: * [all] Error 2
Invoking "make -j4 -l4" failed

Any help would be greatly appreciated, thanks
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