reading hls-lfcd-lds sensor on Ubuntu Laptop 16.04 with ROS Kinetic

[HDallali]

Hi,

I'm trying to read the LIDAR data from the hls_lfcd-lds sensor on my Ubuntu Laptop via the USB dev path /dev/ttyUSB0. The sensor comes with an adpater and can be plugged in to the computer using the USB port.
I have Ubuntu 16.04, installed ROS Kinetic, and the has_lfcd_lds_driver and I can run the launch commands. The sensor is detected and start to turn but I don’t see the points in rviz. When running without rviz I don’t see the publisher’s data when typing roslist echo /scan.

I was wondering if you could help me to find what's the issue?

Thank you,
Houman

[Taehun Lim]

Hi :)

Try below command before launch package

sudo chmod a+rw /dev/ttyUSBx/
(type a USB port number in 'x')

If it not working after that, show me how to set your environment by taking picture.
I wonder how to connect between sensor and pc.

Thanks
Darby

[HDallali]

Hi Darby,
Thanks for your message and sorry for my delay in getting back. I have tried the code you mentioned above with different USB port numbers (x) but only x=0 works and does not give an error. If I try a different port number it says
chmod: cannot access '/dev/ttyUSB1': No such file or directory
for x=1 and so on. I have tried this on several ubuntu laptops and all gave the same results.
would you please let me know if you mean the ros environment or the general ubuntu environment?

I connect the sensor to my laptop using a USB adaptor. that was provided by the sensor.

Thanks,
Houman

[Pyo]

I think this is a simple connection problem.
Haven't you solved this problem yet? If so, I'd like to try it together.

[HDallali]

Dear robotpilot,
Thanks for your message. I haven't solved this problem yet. I appreciate your advice.