support model path parameter from launch file

Author: nyeonsoo

turtlebot3_applications/CHANGELOG.rst

@@ -6,7 +6,7 @@ Changelog for package turtlebot3_applications
 ------------------
 * Added turtlebot3_yolo_object_detection pkg
 * Added a Python script that runs the YOLO model on live camera images and publishes detection results with bounding boxes
-* Contributor: YeonSoo Noh
+* Contributors: YeonSoo Noh
 
 1.2.0 (2025-04-25)
 ------------------

turtlebot3_yolo_object_detection/CHANGELOG.rst

@@ -6,4 +6,4 @@ Changelog for package turtlebot3_yolo_object_detection
 ------------------
 * Added turtlebot3_yolo_object_detection pkg
 * Added a Python script that runs the YOLO model on live camera images and publishes detection results with bounding boxes
-* Contributor: YeonSoo Noh
+* Contributors: YeonSoo Noh

turtlebot3_yolo_object_detection/launch/turtlebot3_yolo_object_detection.launch.py

@@ -17,15 +17,28 @@
 # Author: YeonSoo Noh
 
 from launch import LaunchDescription
+from launch.actions import DeclareLaunchArgument
+from launch.substitutions import LaunchConfiguration
 from launch_ros.actions import Node
 
 
 def generate_launch_description():
+    model_path_arg = DeclareLaunchArgument(
+        'model_path',
+        default_value='~/Downloads/best.pt',
+        description='Path to the YOLO model file'
+    )
+    model_path = LaunchConfiguration('model_path')
+
+    object_detection_node = Node(
+        package='turtlebot3_yolo_object_detection',
+        executable='turtlebot3_yolo_object_detection',
+        name='turtlebot3_object_detection_node',
+        output='screen',
+        parameters=[{'model_path': model_path}]
+    )
+
     return LaunchDescription([
-        Node(
-            package='turtlebot3_yolo_object_detection',
-            executable='turtlebot3_yolo_object_detection',
-            name='turtlebot3_object_detection_node',
-            output='screen'
-        )
+        model_path_arg,
+        object_detection_node,
     ])