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ros2_socketcan_bridge

This package provides functionality to expose CAN frames from SocketCAN to ROS2 topics.

Overview

This is a from-scratch re-implementation of socketcan_bridge from ROS1. There is a different ROS2 package ros2_socketcan which is similar to this package. The differences between this package and ros2_socketcan are:

  • No loopback, i.e. CAN frames that are send are not received by the same node
  • No lifecycle management, just run it
  • Less CPU usage

Nodes

The main node (socketcan_bridge) is also available as dynamically loadable component. The node socketcan_bridge_ee is also provided that uses the EventsExecutor that runs a bit more efficient.

socketcan_bridge

Subscribed Topics

  • ~/tx (can_msgs/Frame) Messages received here will be sent to the SocketCAN device.

Published Topics

  • ~/rx (can_msgs/Frame) Frames received on the SocketCAN device are published on this topic.

Parameters

  • interface Name of the SocketCAN device, by default these devices are named can0 and upwards.
  • read_timeout Maximum duration to wait for data on the file descriptor