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How do I publish byte message in ROS2 from ros2 topic command.
When I try to run the following command:
ros2 topic pub /byte std_msgs/msg/Byte "{data: 3}"
I get:
Failed to populate field: The 'data' field must be of type 'bytes' or 'ByteString' with length 1
It's working for me:
ros2 topic pub /byte std_msgs/msg/Byte "data: [0x03]"
What about the following command?
$ ros2 topic pub /byte std_msgs/msg/Byte "{data: {3}}"
publisher: beginning loop
publishing #1: std_msgs.msg.Byte(data=b'\x03')
publishing #2: std_msgs.msg.Byte(data=b'\x03')
publishing #3: std_msgs.msg.Byte(data=b'\x03')
Asked: 2021-04-02 00:02:26 -0500
Seen: 1,198 times
Last updated: Dec 01 '21
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