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Ethernet Problem with URG-04LX [closed]

asked 2017-03-29 05:21:11 -0600

JustaLinuxLover gravatar image

updated 2017-03-29 06:16:37 -0600

Hey everyone, I ran to this issue yesterday and been trying to fix it ever since with no luck. My URG-04LX works fine with usb but since I want to use it over the wi-fi (right now, I'm testing it with a LAN cable), I've connected it to my laptop, with a RS232-to-Ethernet converter. On windows, I can send and receive it's data with COM, on my 14.04 LTS ubuntu however I get this message when I use urg_node:
(some directory)@user:~$ rosrun urg_node urg_node _ip_address:=""
Error connecting to Hokuyo: Could not open network Hokuyo: could not open ethernet port.

I've already set my Laptop's Ethernet IP address to the RS232-to-Ethernet converter's destination IP and I'm communicating the urg_node with the 115200 baud-rate (which URG-04LX seems to work on it by default) through the 10940 port (again, it's default port). I've tried various solutions provided by other people on the Internet with no luck.
I sincerely appreciate any and every help.
Note: I found a forum that suggested to use a embedded system like raspberry pie or ODROID in order to read data and use a bridge connection to run the urg_node remotely from my laptop but using this way is not applicable in my case.

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Closed for the following reason the question is answered, right answer was accepted by JustaLinuxLover
close date 2017-06-30 16:24:33.017528

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answered 2017-06-30 16:23:53 -0600

JustaLinuxLover gravatar image

Hey again,
decided to solve the problem by using an embedded system along the way and a mini-usb cable to receive the data from my hokuyo since it looks like it's difficult for urg_node to communicate with my laser through a ethernet-to-usb converter. (Reads the data through /dev/ttyUSB0 but it has some weird troubles like not being able to shut the node down :? )
so just decided to give an update on this post and close it, feel free to ask any other related questions about urg_node and hokuyo connection from me :)

Best of luck to you all

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Asked: 2017-03-29 05:11:58 -0600

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Last updated: Jun 30 '17