Hello, I have one more question. I have multiple ublox devices a

multiple gps devices about ublox HOT 3 CLOSED

kumarrobotics commented on June 11, 2024

multiple gps devices

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Comments (3)

gareth-cross commented on June 11, 2024

Make sure you specify different name parameters for each GPS. The default in ublox_gps.launch is:

<arg name="gps" default="gps"/>

So both your GPS units will publish onto the same topic. You could call one gps1 and another gps2, etc...

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ymkim92 commented on June 11, 2024

Thank a lot Gareth!

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ArjunBalakrishnan commented on June 11, 2024

Hello,
I followed this suggestion and created a launch file as given below. It creates two different nodes gps1 and gps2. But topics are only published in one of them. What could be the error? I highly appreciate any suggestions.

<launch>
<arg name="output" default="screen" />
 <arg name="respawn" default="true" />
 <arg name="respawn_delay" default="30" />
 <arg name="clear_params" default="true" />

 <node pkg="ublox_gps" type="ublox_gps" name="gps1"
       output="$(arg output)" 
       clear_params="$(arg clear_params)"
       respawn="$(arg respawn)" 
       respawn_delay="$(arg respawn_delay)">
   <rosparam command="load" 
             file="$(find ublox_gps)/config/gps1.yaml" />
 </node>

 <node pkg="ublox_gps" type="ublox_gps" name="gps2"
       output="$(arg output)" 
       clear_params="$(arg clear_params)"
       respawn="$(arg respawn)" 
       respawn_delay="$(arg respawn_delay)">
   <rosparam command="load" 
             file="$(find ublox_gps)/config/gps2.yaml" />
 </node>
</launch>

Thank you

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