hokuyo_connect:_connect:_get_sensor_info: response does not match:

[joelmaranhao]

Environment

• Using LiDAR URG-04LX (Hokuyo Automatic Co.,Ltd.)
• Python 2.7.6

~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 14.04.4 LTS
Release:    14.04
Codename:   trusty

$ uname -a
Linux mycomputer 4.2.0-27-generic #32~14.04.1-Ubuntu SMP Fri Jan 22 15:32:26 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

Error

This error isn't systematic.
If I try enough times it will eventually work (?)

~$ ./BreezySLAM/examples/urgslam.py

breezylidar.URG04LX:hokuyo_connect:_connect:_get_sensor_info: response does not match:
breezylidar.URG04LX:hokuyo_connect:_connect:_get_sensor_info_and_params: unable to get status!
breezylidar.URG04LX:hokuyo_connect:_connect: could not get status data from sensor
Traceback (most recent call last):
  File "./BreezySLAM/examples/urgslam.py", line 36, in <module>
    lidar = Lidar(LIDAR_DEVICE)
TypeError: Wrong/insufficient arguments passed to URG04LX.__init__() 

[simondlevy]

Yeah, sorry ... this error is certainly related to the BreezyLidar problems you were having before. The command you issued always works with my Hokuyo URG04LX. Unfortunately, because of the high cost of the Hokuyo units, I cannot reproduce the problem here. If you figure it out and manage to fix it, please post a pull request.

[joelmaranhao]

May be we don't have the same firmware, could you check?

Here after the output to my terminal

~/BreezyLidar/examples$ python urgtest.py 

===============================================================
Model:    URG-04LX(Hokuyo Automatic Co.,Ltd.)
Firmware: 3.3.01(23/Jun./2008)
Serial #: H1002589
Protocol: SCIP 2.0
Vendor:   Hokuyo Automatic Co.,Ltd.
===============================================================

[simondlevy]

Yes, you're right, Joel. You are running firmware 3.3.01, whereas mine is
3.4.03:

levy@kern:~/Desktop/BreezyLidar/examples$ ./urgtest.py

Model: URG-04LX-UG01(Simple-URG)(Hokuyo Automatic Co.,Ltd.)
Firmware: 3.4.03(17/Dec./2012)
Serial #: H1320770
Protocol: SCIP 2.0

Vendor: Hokuyo Automatic Co.,Ltd.

Iteration: 1: Got 682 data points
Iteration: 2: Got 682 data points
Iteration: 3: Got 682 data points
Iteration: 4: Got 682 data points
Iteration: 5: Got 682 data points
Iteration: 6: Got 682 data points
Iteration: 7: Got 682 data points
Iteration: 8: Got 682 data points
Iteration: 9: Got 682 data points
Iteration: 10: Got 682 data points
10 scans in 0.906507 seconds = 11.031354 scans/sec

On Wed, Jul 6, 2016 at 9:48 AM, joelmaranhao notifications@github.com
wrote:

May be we don't have the same firmware, could you check?

~/BreezyLidar/examples$ python urgtest.py

Model: URG-04LX(Hokuyo Automatic Co.,Ltd.)
Firmware: 3.3.01(23/Jun./2008)
Serial #: H1002589
Protocol: SCIP 2.0

Vendor: Hokuyo Automatic Co.,Ltd.

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