ROS2 Foxy - Error on launch - SL_RESULT _OPERATION_TIMEOUT

[DingoOz]

Using the lauch scripts on this GitHub with a clean install of Foxy2 on an X86 machine with a rplidar A1 I constantly receive a SL_RESULT_OPERATION_TIMEOUT error.

The USB serial port is correct and baud is correct because when monitoring it, I receive clear text from the lidar: "Firmware Ver 1.25 - rc2, HW Ver 5 Model: 18"

Is there something else I need to configure to avoid this error?

[DingoOz]

I have tried upgrading my rplidar firmware to the latest (1.27) but this did not change anything.

The Ros logs do not provide any more information about why this node threw an error that this error code "SL_RESULTS_OPERATION_TIMEOUT"

[DingoOz]

I have confirmed the hardware works buy using the SLAMTEC demo software under windows.

[DingoOz]

Firmware is now: "RP LIDAR System. Firmware Ver 1.27 - rc8 HW Ver 5 Model: 18"

[vattenbuffel]

I had this problem and the solution for me was that sudo was needed to access the usb port. A simple solution is to give everyone access: sudo chmod 666 /dev/ttyUSB0

[ladrians]

Any other thing to test from this issue? I got the same error and the 666 permission change on ttyUSB0 does not fix the problem connecting to an S2 Lidar, this is the error

[sllidar_node-1] [ERROR] [1657739326.111938211] [sllidar_node]: Error, operation time out. SL_RESULT_OPERATION_TIMEOUT!
[ERROR] [sllidar_node-1]: process has died [pid 41683, exit code 255, cmd '/home/ubuntu/ros2_ws/install/sllidar_ros2/lib/sllidar_ros2/sllidar_node --ros-args --log-level debug --ros-args -r __node:=sllidar_node -r __node:=sllidar_node --params-file /tmp/launch_params_xvswqiic'].

thanks,

[ladrians]

sorry discard my last comment, I confused the lidar model, actually it was a S1 version and works fine!

[xiaoc10020015]

13 humble error SL_RESULT _OPERATION_TIMEOUT