import rclpy from rclpy.node import Node from rclpy.executors import MultiThreadedExecutor class TimerNode(Node): def __init__(self): super().__init__('timer_test_node') self.timer = self.create_timer( 0.1, self.timer_callback, ) def timer_callback(self): print(...
import rclpy from rclpy.node import Node from std_msgs.msg import String class MinimalGuiClient(Node): def __init__(self): super().__init__('gui_client') self.subscription = self.create_subscription( String, 'gui_command', self.listener_callback, 10) self.subscription # prevent...
cv2.waitKey(1)defmain(args=None): rclpy.init(args=args) simple_pub_sub = SimplePubSub() rclpy.spin(simple_pub_sub) simple_pub_sub.destroy_node() rclpy.shutdown()if__name__ =='__main__': main()
So I changed my approach and made it work using the tornado periodic callback and the spin_once function of rclpy as the callback function. I would post my solution as it might help some people who has the same issue. import queue import rclpy from rclpy.node import ...
node import Node from rclpy.qos import ReliabilityPolicy, QoSProfile from std_msgs.msg import String from sensor_msgs.msg import LaserScan class MinimalSubscriber(Node): def __init__(self): super().__init__('minimal_subscriber') self.subscription = self.create_subscription( LaserScan, 'scan'...
Issue details I would like to send Waypoints in MAVROS2, here's a minimal working example based on this GIT Mavros Issue: # see https://github.com/mavlink/mavros/issues/1718 import rclpy from rclpy.node import Node from mavros_msgs.srv i...
import rclpy from rclpy.node import Node from sensor_msgs.msg import PointCloud2 from sensor_msgs import point_cloud2 class my_node(Node): def __init__(self): super().__init__('my_node') self.subscription = self.create_subscription(PointCloud2,'/points',self.lidar_callback,1) def...
#ROS2 Imports import rclpy from rclpy.node import Node from std_msgs.msg import Float32MultiArray import numpy as np #Publisher class for 3 tuple of blob X Y Z coordinates class LocationMsg(Float32MultiArray): def __init__(self, x_c, y_c, z): super().__init__() self.data = ...
node import Node import time class HelloRos2(Node): def __init__(self, name): super().__init__(name) self.get_logger().info("start hello_ros2_py node !!") def run(self): try: while rclpy.ok(): self.get_logger().info("hello ros2 in python !!") time.sleep(1) except ...
import rclpy from rclpy.node import Node from gpiozero import OutputDevice class StepperMotorNode(Node): def __init__(self): print('Generate Node') super().__init__('stepper_motor_node') self.dir = OutputDevice("GPIO2") self.dir.on() self.step = OutputDevice("GPIO3") self.timer ...