Sam Pfeiffer awesomebytes

Fix rosidl_adapter.parser.InvalidResourceName: //

In a project where we need to softlink some messages from a different folder in a repository into a new ROS2 messages package (to only use a subset of them, and have them be the real definition of them) I ran into the following error when running: ros2 interface show my_pkg_msgs/msg/MyMessage

Error processing '// generated from rosidl_adapter/resource/msg.idl.em' of 'my_pkg_msgs/MyMessage': '//'
Traceback (most recent call last):
  File "/home/user/CompanyCode/company/pixi_ros2_ws/.pixi/envs/default/bin/ros2", line 10, in <module>
    sys.exit(main())

Example session of Claude Engineer to create a PySide QT UI for itself

Using https://github.com/Doriandarko/claude-engineer Total cost 1$. Nice interface, nice workflow. It got stuck on execution.

╭────────────────────────────────────────────────────── Welcome ───────────────────────────────────────────────────────╮
│ Welcome to the Claude-3-Sonnet Engineer Chat with Multi-Agent and Image Support!                                     │
╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
Type 'exit' to end the conversation.
Type 'image' to include an image in your message.

How to keep color of a 3D model for gazebo and Rviz

Get model from SolidWorks in .ply and in .obj (All in a single file) (so, you need a model that has color information somehow, in my case, opening it with meshlab always showed the color)

Use the .obj to open in Blender, make sure to adjust the import size (probably is in mm, so 0.001)

Now export to collada (.dae) and the model will keep color

SSH into directly connected ethernet board

From: https://unix.stackexchange.com/a/624347

# Find the ipv6 address connected to the interface (-I YOUR_INTERFACE)
ping6 -L -I enx8cae4cdd3a4d ff02::1
# PING ff02::1(ff02::1) from fe80::15c5:f43f:2c00:fefd%enx8cae4cdd3a4d enx8cae4cdd3a4d: 56 data bytes
# 64 bytes from fe80::f00b:9167:92a:a182%enx8cae4cdd3a4d: icmp_seq=44 ttl=64 time=3.78 ms
# Now ssh into the discovered address+interface:

Create a live ubuntu cd with PREEMPT_RT

Based on: https://askubuntu.com/a/741770

I compiled the kernel with PREEMPT_RT previously (notes here: ). Then I extracted the .deb files following these instructions: https://askubuntu.com/questions/1340273/is-there-any-way-to-extract-content-of-vdi-file (As the shared folder from Virtualbox did not work for me).

	#!/usr/bin/env python

	"""Example of usage of ipython debugger (ipdb)
	to interactively debug something in the code with autocomplete and color support.

	You may need to install:
	sudo pip install ipdb
	"""

	#!/usr/bin/env python

	import rospy
	import tf2_ros
	from geometry_msgs.msg import PoseStamped

	# You want to use "simulated time" so it uses the time from the rosbag
	# rosparan set /use_sim_time true
	# Play your rosbag with something like:

	#!/usr/bin/env python

	import rospy
	import sensor_msgs.point_cloud2 as pc2
	from sensor_msgs.msg import PointCloud2, CameraInfo, CompressedImage
	from cv_bridge import CvBridge
	import tf2_ros
	import tf2_py as tf2
	import tf2_sensor_msgs
	import cv2

	#!/usr/bin/env python3
	from typing import Any
	import rospy
	import types

	# Possible future idea: this could allow to also drop messages on purpose on the Python side
	# deserializing is the second most expensive thing to do anyways (the first being just receiving the message)

	# Author: Sam Pfeiffer <sammypfeiffer at gmail.com>
	# License: BSD-3

	#!/usr/bin/env python
	import rospy
	from can_msgs.msg import Frame
	from std_msgs.msg import UInt8MultiArray


	def create_request(channel, off_on_toggle):
	"""Create a CAN Frame to request CHANNEL to OFF_ON_TOGGLE
	0 - 48 0 1 2
	bits 0-7 bits 8-15"""