Example Apps

name: hello-robot
version: 1.0.0
description: "A simple Hello World robot application"
author: "Garage Team"
tags:
  - beginner
  - tutorial
  - ros2

# ROS2 configuration
ros:
  distro: humble
  packages:
    - hello_robot

# Dependencies
dependencies:
  system:
    - ros-humble-desktop
  python:
    - rclpy

# Entry points
launch:
  main: "ros2 run hello_robot hello_node"
  
# Optional GUI support
gui:
  enabled: true
  launch: "ros2 run hello_robot hello_gui"

#!/usr/bin/env python3
import rclpy
from rclpy.node import Node
from std_msgs.msg import String

class HelloRobotNode(Node):
    def __init__(self):
        super().__init__('hello_robot')
        
        # Create publisher
        self.publisher = self.create_publisher(
            String, 
            'hello_topic', 
            10
        )
        
        # Create timer
        self.timer = self.create_timer(1.0, self.timer_callback)
        self.counter = 0
        
        self.get_logger().info('Hello Robot Node Started!')
    
    def timer_callback(self):
        msg = String()
        msg.data = f'Hello Robot! Count: {self.counter}'
        self.publisher.publish(msg)
        
        self.get_logger().info(f'Publishing: {msg.data}')
        self.counter += 1

def main(args=None):
    rclpy.init(args=args)
    node = HelloRobotNode()
    
    try:
        rclpy.spin(node)
    except KeyboardInterrupt:
        pass
    finally:
        node.destroy_node()
        rclpy.shutdown()

if __name__ == '__main__':
    main()

from launch import LaunchDescription
from launch_ros.actions import Node

def generate_launch_description():
    return LaunchDescription([
        Node(
            package='hello_robot',
            executable='hello_node',
            name='hello_robot_node',
            parameters=[
                {'publish_rate': 2.0},
                {'message_prefix': 'Garage Robot:'}
            ],
            output='screen'
        ),
        
        Node(
            package='hello_robot',
            executable='listener_node',
            name='hello_listener',
            output='screen'
        ),
    ])