How to run Arduino IDE without changing permission (Ubuntu 19.04)

Development Tools IDE 1.x
1

Recently, I installed Ubuntu 19.04 because I have some issue with Windows 10. I ran Arduino IDE without any issue, especially uploading my sketch to Arduino. When I start using Arduino IDE on Ubuntu, I have a problem uploading my sketch. It keeps me getting an error message.

avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied.

I found this solution to open Terminal and enter some commands below.

sudo usermod -a -G tty haniffurqonh
sudo usermod -a -G dialout haniffurqonh
sudo chmod a+rw /dev/ttyACM0
sudo chmod a+rw /dev/ttyACM1

The solution works well, but I have to enter the command each time I turn on my laptop.

2

The usermod changes should be permanent. Maybe dialout is not the correct group? You don't need the chmod stuff if you are in the correct group.

In a terminal, with the board plugged in, enter and run:
ls -l /dev/ttyACM*
Note: -l is lowercase L, not a 1.

This will show the group that has access to the port.

Example: crw-rw-r-- 1 root dialout ... /dev/ttyACM0, root is owner, dialout is the group with access.

Running the command, groups or id, in a terminal will show the groups you belong to.

sudo adduser YourUserName GroupToJoin Will fix things if you need to join a group, logout and login after you run adduser.