Hi Blaise,

Hokuyo model is : URG-04LX. I installed picocom, but after executing
 $ picocom /dev/ttyACM0
 ...........................................
Terminal ready

Now if I type VV [or vv] it reply with "C" . So don't know what the firmware version is. from URG-04LX specifications it seems that it follows SCIP version 2.

I have tested laser with player program and its working. Because of modularity and distributed system I switched to ROS and just trying to make an interface with powerbot [Pioneer]. I have tested p2os node [from USC] and found it working. Expecting your help in this regards.

Vinay

On Fri, Jun 25, 2010 at 12:23 AM, Vinay K <vinay.csir@gmail.com> wrote:
Hi,

I was trying to run hokuyo_node to test my hokuyo laser. below is the error while execution...., I have set /dev/ttyACM0 port and also permission to access ttyACM0. Getting this error and  also checked the troubleshooting. Seems that I am missing something very trivial. Help from your side 'll be greatly appreciated.
.......................................Error......................................................
vros@powerbot:~$ rosrun hokuyo_node hokuyo_node
[ERROR] 1277434561.027264000: Exception thrown while opening Hokuyo.
Checksum failed on status code. (in hokuyo::laser::sendCmd) You may find further details at http://www.ros.org/wiki/hokuyo_node/Troubleshooting
.................................................................................................

Thanks,

Vinay