Hokuyo laser getID failed. How to fix it?

asked 2015-07-08 17:02:32 -0600

Truce
33 ●2 ●2 ●7

updated 2021-12-03 09:51:28 -0600

Evgeny
26 ●6

While running the rosrun hokuyo_node, I get the error getID failed: timeout reached (in hokuyo::laser::laserReadLine)

how to fix it. I followed the Hokuyo tutorials. And I have given it permission.

answered 2015-07-09 12:24:17 -0600

redskydeng
118 ●8 ●11 ●16 https://shop136409768....

updated 2015-07-09 12:28:45 -0600

Make sure the laser driver is installed correctly and the system can read it. Connect your laser and check if the system can detect it and if it is configured correctly.

$ ls -l /dev/ttyACM0

When the laser is connected, the system can see it using the following command line:

crw-rw-rw- 1 root dialout 166, 0 Jun 15 11:17 /dev/ttyACM0

Once everything is OK, we are going to switch on the laser. Start roscore in one shell and in another shell execute the following command:

$ rosrun hokuyo_node hokuyo_node

If everything is fine, you will see the following output:

[ INFO] [1378076340.184643618]: Connected to device with ID: H10XX40X

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Yes I did whatever you said. It worked fine till : crw-rw-rw- 1 root dialout 166, 0 Jun 15 11:17 /dev/ttyACM0

then trying to get ID i was getting error. Somehow after taking a break and restarting everything. It worked. Thanks for your help.

Truce ( 2015-07-10 10:38:39 -0600 )edit

On the youbot there should also be a /dev/sensors/hokuyo symlink that you can set by:

$ rosparam set hokuyo_node/port /dev/sensors/hokuyo

85pando ( 2015-09-25 07:24:15 -0600 )edit

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