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ROS2 not detecting micro-ROS service

asked 2023-05-17 13:20:11 -0500

alrit gravatar image

Hi all!

I'm new to ROS2 and micro-ROS and currently going through micro-ROS tutorials trying to learn the basics of how to implement ROS2 publishers, subscribers and service servers/clients on microcontrollers.

I've managed to create publishers and subscribers that communicate with other ROS2 objects via micro-ROS agent. I used the micro-ros_publisher and micro-ros_subscriber examples from micro_ros_arduino github. Link to examples here:

However, when trying out the micro-ros_addtwoints_service example code, ROS2 running on my main computer does not detect any services. The example code compiles and uploads to the microcontroller, connection to the micro-ROS agent is made, but command ros2 service list gives empty output, even though service "/addtwoints" should be created in the example code. The node "add_twoints_client_rclc" created in the example code, however, is created and command ros2 node list gives output /add_twoints_client_rclc. Any ideas what am I missing, why there is no service created?

Link to the example micro-ros_addtwoints_service example code:

I'm using ROS2 Humble on Ubuntu 22.04, with kernel 5.19.0-38.

My microcontroller is Arduino Nano RP2040 Connect.

I installed ROS2 following this installation guide on ROS2 website

and micro-ROS agent following this guide on micro-ROS website

I'm happy to provide any extra information if I'm missing something in the description.

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answered 2023-05-18 00:28:31 -0500

Pablogs gravatar image

Hey could you open an issue in the Github repo you are using so we can track this?

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Opened an issue in the micro_ros_arduino Github repository. Link to the issue here:

alrit gravatar image alrit  ( 2023-05-18 06:46:18 -0500 )edit

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Asked: 2023-05-17 13:20:11 -0500

Seen: 259 times

Last updated: May 18 '23