Hi, I'm trying to use the sicktoolbox_wrapper stack with a SICK LMS200 laser rangefinder (connected over serial; port /dev/ttyS0). I set the permissions as described here ( http://www.ros.org/wiki/sicktoolbox_wrapper/Tutorials/UsingTheSicklms) -- it shows: "crw-rw-rw- 1 root dialout 4, 64 2010-07-13 11:36 /dev/ttyS0". However, I get an error when I run the following: rishi@rishi-portable:~$ rosrun sicktoolbox_wrapper sicklms _port:=/dev/ttyS0 _baud:=38400 The error: *** Attempting to initialize the Sick LMS... Attempting to open device @ /dev/ttyS0 Device opened! Attempting to start buffer monitor... Buffer monitor started! Attempting to set requested baud rate... A Timeout Occurred! 2 tries remaining A Timeout Occurred! 1 tries remaining A Timeout Occurred - SickLIDAR::_sendMessageAndGetReply: Attempted max number of tries w/o success! Failed to set requested baud rate... Attempting to detect LMS baud rate... Checking 19200bps... A Timeout Occurred! 2 tries remaining A Timeout Occurred! 1 tries remaining A Timeout Occurred - SickLIDAR::_sendMessageAndGetReply: Attempted max number of tries w/o success! Checking 38400bps... A Timeout Occurred! 2 tries remaining A Timeout Occurred! 1 tries remaining A Timeout Occurred - SickLIDAR::_sendMessageAndGetReply: Attempted max number of tries w/o success! Checking 500Kbps... A Timeout Occurred! 2 tries remaining A Timeout Occurred! 1 tries remaining A Timeout Occurred - SickLIDAR::_sendMessageAndGetReply: Attempted max number of tries w/o success! ERROR: I/O exception - SickLMS::Initialize: failed to detect baud rate! [ERROR] [1279035417.096500632]: Initialise failed! are you using the correct device path? [ERROR] [1279035417.096682835]: woah! error! It seems the issue is the baud rate, but I set it manually in my rosrun command -- any ideas? Thanks! Rishi Rishi Bedi rbedi100@gmail.com