agilexrobotics / limo_ros Goto Github PK

Hi
in this video
https://www.youtube.com/watch?v=icWWjyr9G_U
it looks like a map is been created
and there is a localization node running

can you specify how you did it ?
which launch files should I use?
And do I need to first create the map with the cartographer or gmapping
and then run other launches simultaneously?
and if yes, which navigation (diff/ackerman/both)?

thanks

Hi,
Instead of using the rviz on the Limo I would like to use the network to share the rosmaster with my PC. Online I found out that it is possible. I followed this guide as well as online help: Networking Multiple ROS Machines. But after trying to change the ROSMASTER with the ROS_MASTER_URI and ROS_IP. But I can see the topics from the limo but that is all. I don't get any updates from the Limo. If I check on the Limo I can see that it publishes on the topics.

The Limo has the IP: 10.10.10.236
and the pc has the IP: 10.10.10.10

So on the Limo I did this:
export ROS_MASTER_URI=http://10.10.10.236:11311
export ROS_IP=10.10.10.236

On my PC I exported this:
export ROS_MASTER_URI=http://10.10.10.236:11311
export ROS_IP=10.10.10.10

Also I changed the /etc/hosts on both, on the pc I added the ip from the limo. and on the Limo I added the ip from the PC

Is there anything I missed? because as I mentioned I can see the topics but I can't publish anything (from my PC) and I can't see the published data.

Hi, I have a limo robot.

I succeeded to make the robot running with the "normal" wheels.

I changed the wheel to the omnidirectionnal ones, but they are not running any more.

When I published something in cmd_vel. I can hear a some noise (like something is locking), but the wheel still do not move. When I tried the ackermann, the direction is working.

Can you help me ?

I want to change the "eyes" screen that just blink
I get that it's connected with serial
but is there some driver for it?
is there some firmware that runs somewhere?
and if there is, can you supply an example

Hi,

I wish to get feedback from motor current or torque from the limo 1. Do you think there is a way to do that ? It is possible to provide the motor datasheet too ?

Cheers,
Bryan

The limo_start.launch in the Limo_bringup references the ydlidar_ros with an X2L. From YDLidar there is a ydlidar_ros_driver, which doesn't include the X2L. Where can the ydlidar_ros be obtained that is referenced with this particular project?

Do you have the Omni drive support for LIMO as shown in the video?

I am loading limo_ros into a catkin workspace, and catkin_make works fine but the launch gives an error

Resource not found: ydlidar_ros ROS path [0]=/opt/ros/noetic/share/ros ROS path [1]=/home/user/catkin_ws/src ROS path [2]=/home/user/simulation_ws/src ROS path [3]=/home/simulations/public_sim_ws/src

When I add the ydlidar_ros repository I get a different error

Error initializing YDLIDAR check Comms. [ERROR] [1652111631.807010110]: Error initializing YDLIDAR Comms and Status!!! [limo_base_node-2] process has died [pid 3318, exit code 255, cmd /home/user/catkin_ws/devel/lib/limo_base/limo_base_node__name:=limo_base_node __log:=/home/user/.ros/log/37b1dafa-cfb0-11ec-8b44-0242ac140007/limo_base_node-2.log]

This doesn't seem like an error running on noetic instead of melodic.

Do I need to run a different branch of ydlidar_ros? Or do I need to clone the version on the Limo (which doesn't appear to be from a public repository)?

Thanks if you can help!