ahmed.shamroukh's profile - activity

Hi All,

I am a beginner user with ROS and I read some tutorials about it and I finished all the beginner level and I am using Ubuntu 12.04 LTS and ROS Groovy.

My question is: I need the software steps (step by step) of how to build my own robot using ROS? as till now I am NOT knowing how to start to build my own robot, I do not mean how to create robot at general?, I mean What should I learn first in ROS then second then third ...... to create my own designed robot at the final

Thank you

Can I control and access to my robot using ROS, or ROS is a simulating program only. If I can control my robot ,, can you give me steps to start controlling it (I had done my mechanical design)

Hi All,

I am a beginner user with ROS and I read some tutorials about it specially (catkin,urdf,rviz, gazebo,roscpp).

My question is: I need steps (step by step) of how to build my own robot? as till now I am NOT knowing how to start to build my own robot, Please becareful with that I read urdf,rviz,gazebo,groovy tutorials

I am using Ubuntu 12.04 LTS and ROS Groovy

I am going to do all the heavy computation offboard, and only send/receive motor commands and sensor observations outside of the ROS message framework. I will use kinect sensor in the first and I will add some others in the other stages.

I am going to do all the heavy computation offboard, and only send/receive motor commands and sensor observations outside of the ROS message framework. I will use kinect sensor in the first and I will add some others in the other stages.

When I am trying to build my own robot according to this link: http://www.ros.org/wiki/urdf/Tutorials/Create%20your%20own%20urdf%20file

It appears to me some errors:

seec@ubuntu:~$ rosmake urdfdom_model [ rosmake ] rosmake starting...
[ rosmake ] Packages requested are: ['urdfdom_model']
[ rosmake ] Logging to directory /home/seec/.ros/rosmake/rosmake_output-20130722-140052 [ rosmake ] Expanded args ['urdfdom_model'] to: []
[ rosmake ] WARNING: The following args could not be parsed as stacks or packages: ['urdfdom_model'] [ rosmake ] ERROR: No arguments could be parsed into valid package or stack names. seec@ubuntu:~$ rosrun urdfdom_model check_urdf my_robot.urdf [rospack] Error: stack/package urdfdom_model not found

Is there some special place to save in it "my_robot.urdf" this .urdf file? I do not know what is the issue?

When I am trying to build my own robot according to this link: http://www.ros.org/wiki/urdf/Tutorials/Create%20your%20own%20urdf%20file

It appears to me some errors:

seec@ubuntu:~$ rosmake urdfdom_model [ rosmake ] rosmake starting...
[ rosmake ] Packages requested are: ['urdfdom_model']
[ rosmake ] Logging to directory /home/seec/.ros/rosmake/rosmake_output-20130722-140052 [ rosmake ] Expanded args ['urdfdom_model'] to: []
[ rosmake ] WARNING: The following args could not be parsed as stacks or packages: ['urdfdom_model'] [ rosmake ] ERROR: No arguments could be parsed into valid package or stack names. seec@ubuntu:~$ rosrun urdfdom_model check_urdf my_robot.urdf [rospack] Error: stack/package urdfdom_model not found

Is there some special place to save in it "my_robot.urdf" this .urdf file? I do not know what is the issue?

Dear All,

I am dealling with ROS for 3 months and now I want to begin to build my own robot, I have finished my mechanical design and now I ask for how to connect ROS with this robot. Is it connected serially or USB? by another method: How to give the robot my commands, for example: if I want to make the robot go right, I made the nodes and commands, how to give and tell the robot the commands(serial, USB, ....) How?

By the way i am using ROS Groovy and Ubuntu 12.04 LTS

Hello all,

I want to connect my arduino to ROS and I follow the instructions on this page: http://www.ros.org/wiki/rosserial_arduino/Tutorials/Hello%20World and I have an error messages when I run this command

rosrun rosserial_python serial_node.py /dev/ttyACM0

I got these messages:

[INFO] [WallTime: 1374289833.138161] ROS Serial Python Node
[INFO] [WallTime: 1374289833.138698] Connecting to /dev/ttyACM0 at 57600 baud
[ERROR] [WallTime: 1374289850.253387] Lost sync with device, restarting...
[INFO] [WallTime: 1374289850.582506] Failed Packet Flags 
[ERROR] [WallTime: 1374289865.264259] Lost sync with device, restarting...
[INFO] [WallTime: 1374289865.567682] Failed Packet Flags 
[ERROR] [WallTime: 1374289880.273930] Lost sync with device, restarting...
[INFO] [WallTime: 1374289880.546574] Failed Packet Flags 
[ERROR] [WallTime: 1374289895.278249] Lost sync with device, restarting...
[INFO] [WallTime: 1374289895.529322] Failed Packet Flags 
[ERROR] [WallTime: 1374289910.280912] Lost sync with device, restarting...
[INFO] [WallTime: 1374289910.512166] Failed Packet Flags

I did what you told me but I have a new error: [INFO] [WallTime: 1374246906.900536] ROS Serial Python Node [INFO] [WallTime: 1374246906.901156] Connecting to /dev/ttyACM0 at 57600 baud [INFO] [WallTime: 1374246909.946657] Failed Packet Flags [ERROR] [WallTime: 1374246924.016878] Lost sync with d

When I write this command on terminal: rosrun rosserial_python serial_node.py /dev/ttyUSB0 but I change my port from USB0 to ACM0 as I work on ACM0

it appears to me that: [INFO] [WallTime: 1374151755.600608] ROS Serial Python Node [INFO] [WallTime: 1374151755.601022] Connecting to /dev/ttyACM0 at 57600 baud [ERROR] [WallTime: 1374151755.603582] Error opening serial: could not open port /dev/ttyACM0: [Errno 2] No such file or directory: '/dev/ttyACM0'

and I rum roscore in a new terminal

I am on groovy