Closed alain-lnpcrd closed 7 months ago
Does the time synchronization solution necessarily involve :
[Network Time Protocol] / https://iroboteducation.github.io/create3_docs/setup/compute-ntp/)/Setup NTP on compute board to serve time to Create®3
What issues can cause all devices to fail to sync with the global time NTP server on the internet
I can't get through it, installing the ntp server on the raspberrypi following the configuration given in the create3 doc brings me new bugs https://github.com/iRobotEducation/create3_docs/discussions/572
found in a message: install Cyclone DDS on Humble and put this export line RMW_IMPLEMENTATION=rmw_cyclonedds_cpp in your bashrc Verified with the "create_path" example It's worrying to see that at least since the release of humble the problem has not been resolved.
Robot Model
Turtlebot4 Lite
ROS distro
Humble
Networking Configuration
Simple Discovery
OS
Ubuntu 22.04
Built from source or installed?
Installed
Package version
moi@rpi4b-u2204d-turtlebot4:~$ dpkg -s ros-humble-turtlebot4-python-tutorials Package: ros-humble-turtlebot4-python-tutorials Status: install ok installed Priority: optional Section: misc Installed-Size: 80 Maintainer: rkreinin rkreinin@clearpathrobotics.com Architecture: arm64 Version: 1.0.1-1jammy.20240220.180339 Depends: ros-humble-irobot-create-msgs, ros-humble-rclpy, ros-humble-turtlebot4-navigation, ros-humble-ros-workspace Description: TurtleBot 4 Python Tutorials moi@rpi4b-u2204d-turtlebot4:~$
Expected behaviour
path programming to a point 3m away and back to the station the robot executes the path on zll
the
recorded pointsActual behaviour
running the proposed 'create_path example' (but the other examples don't work better) undock the robot moves in front of its station doxk
Error messages
To Reproduce
see errors messges
Other notes
my tutlebot4 lite robot is a homemade assembly of a create3 with a raspberrypi 4B 8GB, a rplidar a1m8 and an OAK D Lite camera I took out and fanned the raspberry pi by placing it on the back of the camera. CPU temperature 50/55°C for convenience the last tests were executed with an Ubuntu 22.04 desktop but the behavior was the same with Ubuntu 22.04 server. The wifi does not show any particular anomaly
The choice of testing with create_path is to not resort to any package compilation