avrdude: ser_open(): can’t open device

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How to Configure Permission Denied Port

Can’t open device Permission denied – When you upload the code to the Arduino board using Linux and get an error appears like this:

avrdude: ser_open(): can’t open device “/dev/ttyACM0”: Permission denied

You can fix it with this command in terminal:

sudo usermod -a -G dialout <username>

For example, my computer username is neon, then write:

sudo usermod -a -G dialout neon

Give permission for ports to be read and written using the terminal with two commands:

sudo chmod a+rw /dev/tty<ACM or USB>

For example, the detected port name is ttyUSB0, then the command is:

sudo chmod a+rw /dev/ttyUSB0

Done.

If you want to see the video arduino ide instalation in ubuntu, you can see this:

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