Failed to open the serial port /dev/ttyACM0

Technical Support
1

When I try to Teleop Turtlebot3 Burger using Keyboard of a Remote PC,
the following error appear

Failed to open the serial port /dev/ttyACM0

Any advice

2

This message indicates that you aren’t able to access the configured serial port you are attempting to use for teleoperation. the most likely causes for this are:

  1. The logged in account that you are using does not have the correct permissions to access the serial port.
  2. Your computer has a different name assigned to the serial port other than ttyAM0
3

Hi, I have more information on the error.
Turtlebot3 bring-up is successful.
Teleop is able to launch.
Using W A S D keys , on PC terminal side, it show the data changing
But the robot failed to move.
Here is the error
Error opening serial: [Errno 2] could not open port /dev/ttyACM0: [Errno 2] No such file or directory "/dev/ttyACM0

How to check where is above file?

4

Are you executing bringup on a Raspberry Pi4B?
Also, try executing
$ ls -l /dev/ttyACM0
on a Raspberry Pi4B to check the permissions.