I cant control my rplidar(can't stop)

asked 2017-07-31 05:05:09 -0500

Kang
16 ●1 ●3 ●2

Hello, everyone I have a question for you. my environment is Raspberry pi 3, Ubuntu mate 16.04 LTS, rplidar A2. I just follow rplidar tutorial(http://wiki.ros.org/rplidar)

everything is ok, but when i killed rplidar(press Ctrl+C), terminal show me : shutting down processing monitor complete BUT, lidar continues to work(spining), How can i stop rplidar ?

Do i have to do extra work? or something i forgot? Please answer me how to solve the problem.

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Comments

Not very familiar with rplidar, but shouldn't it always spin while powered? By killing a node you are basically killing the driver only.

Procópio ( 2017-07-31 05:14:10 -0500 )edit

the RPLidar A2 driver (should) starts and stops the motor on launch and exit respectively.

naveedhd ( 2017-08-02 08:06:04 -0500 )edit

can you share the source of that information?

Procópio ( 2017-08-09 02:47:45 -0500 )edit

In official node here and nodelet's implementation here

naveedhd ( 2017-08-09 06:59:42 -0500 )edit

I dont have any idea about how kill a node. can you show me command?

Kang ( 2017-08-30 08:25:14 -0500 )edit

@naveedhd i just know when i stoped RPLidar, just press Ctrl+C, i don't know how kill respective node.

Kang ( 2017-08-30 08:26:58 -0500 )edit

@naveedhd I appreciate it. Thanks.

Kang ( 2017-08-30 08:27:41 -0500 )edit

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answered 2017-09-10 08:36:59 -0500

Kang
16 ●1 ●3 ●2

I did 2 solutions about my problem.

Power problem
it looks power problem about my rplidar.
i used 5V/1A power connect. but when i see CPU monitor, i think it was lack about using RPlidar
so i connect power-supplied USB 3.0 hub with RPlidar.
add 2 lines of command
when i use rplidar i always insert 2 lines of command $ source /home/{user}/catkin_ws/devel/setup.bash $ source /opt/ros/kinetic/setup.bash

with 2 solutions, i can start , stop my rplidar.