Ask Ubuntu Asked by sergiomafra on January 4, 2021
My OS is Ubuntu 18.04 and arduino was working until now.
Although there are a few solutions, none of them seems to work for me.
I followed these instructions on the arduino website.
Then I tried this on arduino Stack Exchange, which should work in cases where the first solution didn’t. The answer says we should create a few rules on /etc/udev/ruled.d/
path.
But none of them worked for me.
I also tested arduino in Windows 10 to see if it was a hardware problem, but it worked fine.
Does anyone have any other ideas on how to solve this issue?
UPDATE:
This is the output of ll /dev/ttyACM0
after running the tutorial commands:
crw-rw-rw- 1 root dialout 166, 0 Jul 15 05:41 /dev/ttyACM0
UPDATE 2:
I’ve created a script to solve this:
https://github.com/sergiomafra/iniarduino
I had a similar issue when I tried to upload a sketch to Arduino. The issue was connected to the lack of permissions to read/write to the serial port. I was able to fix by using the following command:
To confirm the port exists enter the following from the root directory.
ls /dev/ttyACM0
To set read/write permissions, enter the following
sudo chmod a+rw /dev/ttyACM0
Correct answer by Adrian on January 4, 2021
This worked to fix the 'unable to open serial port' problem (put your Ubuntu username in instead of $USER
) after downloading Arduino from Ubuntu Software.
sudo usermod -a -G dialout $USER
sudo chmod a+rw /dev/ttyUSB0
Answered by Sam_Carmichael on January 4, 2021
I had the same issue, I tried installing from Ubuntu Store on 18.04 and try everysolution here. Nothing worked for me. So I downloaded the latest
I extracted and ran the following command to install it: $ sudo ./install.sh
After installing, I ran the script that came with the latest version by running the following:
$ ./arduino-linux-setup.sh <user_name>
Once the script is complete, it show you a message of "Please Rebook you system". I didn't restart when I try the solutions here, may be this is something that next users should try.
Important: When you install the software following these steps you need to go to Ubuntu Software and Give Permission to "Access Usb Hardware directly".
Answered by titusfx on January 4, 2021
For me mixture of above two answers worked:
First was I couldn't find avrdude, which avrdude
this gave me nothing. So, I had to reinstall the arduino.
sudo apt install --reinstall arduino
This installed avrdude, and I could find it in /usr/bin/avrdude
.
Next thing was to set read/write permission to the serial port:
sudo chmod a+rw /dev/ttyACM0
Then I could upload the sketch on to my arduino!
Answered by Bhaskar Chakradhar on January 4, 2021
ha I'm a newbie and I made some mistakes)) Don't do it the way I do.
Then I executed the following commands:
When I was looking for a board in menu of arduino programm (Tools -> Board) I did not find an 'Arduino/Genuino Uno' just there was an 'Arduino Uno' (I guess it's OK)
Answered by Nefedova Oxana on January 4, 2021
I see that the question is already accepted but none of the solutions did it for me so I've got a different solution. I installed the arduino IDE via the Ubuntu software installer. What you need to do is.
Answered by sjoerd hilhorst on January 4, 2021
I got a solution.
Find your port to which the Arduino is connected (e.g. mine was /dev/ttyUSB0
). You may find it mentioned in the error message in Arduino IDE.
Open the terminal (Ctrl+Alt+T).
In the terminal run:
sudo chmod 777 /dev/ttyUSB0
The above command sets the required permissions.
Answered by yugal sharma on January 4, 2021
Here's what worked for me:
sudo apt uninstall arduino; sudo apt autoremove
)sudo apt install avrdude
since the one from the website doesn't include itsudo usermod -a -G dialout $USER
since the one from the website doesn't do this automatically (the dialout
group owns the device file; this adds the current user to that group)And now everything's working again!
Answered by Draconis on January 4, 2021
In combination with all the posts I read, this is what I did to solve that issue by following directions from this thread.
In a new terminal, I typed the following as shown below.
Please note that fourplus is my username.
Answered by Arafat Mukasa on January 4, 2021
Reinstall your arduino installed from Ubuntu software center:
sudo apt install --reinstall arduino
Reinstalling is necessary since your which avrdude
command according to your comment returns nothing, but should be /usr/bin/avrdude
. Check again:
which avrdude
Run your Arduino IDE after reinstalling and close it.
Check your arduino configuration. Open /home/sergio/.arduino/preferences.txt
file and check there serial.port
option. Try to change it to /dev/ttyACM0
. Open that file:
sudo nano /home/sergio/.arduino/preferences.txt
and apply corresponding changes, i.e. the option should look
serial.port=/dev/ttyACM0
Restart computer afterwards.
Answered by Bob on January 4, 2021
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