Parameters from Yaml file did not appear when doing ros2 param list
I am using ros2 humble in my jammy ubuntu distro. I tried to get the parameter from my params.yml. When I tried to launch the launch file, then I tried to do ros2 param list
, just use_sim_time
that appeared instead the parameter that I set in the params.yml. For further information, I also attached my launch file.
from launch import LaunchDescription
from launch_ros.actions import Node
from launch.actions import DeclareLaunchArgument
from launch.substitutions import LaunchConfiguration
def generate_launch_description():
params_file = "/home/janana/ros2_ws/src/br_navigator_ros/br_navigator_bringup/config/params.yml"
# Declare a launch argument to specify the parameters file
params_arg = DeclareLaunchArgument(
name="params_file",
default_value=params_file,
description="Path to the YAML parameters file"
)
# Create a node
node = Node(
package='br_pca9685',
executable='pca9685_node_ver.py',
name= 'pca9685',
parameters=[LaunchConfiguration('params_file')]
)
# Create the launch description
ld = LaunchDescription()
# Add the launch argument and node to the launch description
ld.add_action(params_arg)
ld.add_action(node)
return ld
if __name__ == '__main__':
generate_launch_description()
I have already install the config directory in my CMakeList.txt
install(
DIRECTORY launch config
DESTINATION share/${PROJECT_NAME})
This is the content of my params.yml :
pca9685:
ros__parameters:
bool_array: [True, True, False, False, True, True, False, True]
Does anyone know how to solve this ?
Asked by jenanaputra on 2023-06-07 23:24:47 UTC
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