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Fixing Arduino Serial Communication/Uploader Issue in Ubuntu 18.04

Ubuntu 7

In this article, we’ll dive into the topic of fixing the Arduino Serial Communication/Uploader issue in Ubuntu 18.04. This issue can be quite frustrating, but with a few steps, we can resolve it effectively.

Understanding the Issue

The Arduino IDE is a powerful tool for developing and uploading code to Arduino boards. However, users may sometimes encounter issues with serial communication or the uploader when using the Arduino IDE on Ubuntu 18.04. These issues can prevent the IDE from communicating with the Arduino board, thus hindering the uploading of sketches.

Possible Solutions

There are several possible solutions to this issue, and we’ll explore each one in detail.

Solution 1: Install Oracle Java 8

The first solution involves installing Oracle Java 8. This version of Java is known to work well with the Arduino IDE.

To install Oracle Java 8, you need to add the WebUpd8 PPA to your system’s software sources. You can do this by running the following command in your terminal:

$ sudo add-apt-repository ppa:webupd8team/java

This command adds the WebUpd8 PPA to your system. The sudo command is used to run the command with root privileges, add-apt-repository is used to add a PPA to the system, and ppa:webupd8team/java is the PPA that we’re adding.

Next, update your system’s package list by running the following command:

$ sudo apt update

Finally, install Oracle Java 8 by running the following command:

$ sudo apt install oracle-java8-set-default

This command installs Oracle Java 8 and sets it as the default Java version on your system.

Solution 2: Install OpenJDK 8

If you prefer not to use Oracle’s version of Java, you can instead install OpenJDK 8.

To install OpenJDK 8, run the following command:

$ sudo apt install openjdk-8-jdk

This command installs the openjdk-8-jdk package, which includes the OpenJDK 8 Java Development Kit.

After installing OpenJDK 8, you can activate it by running the following command:

$ sudo update-alternatives --config java

This command allows you to select the default Java version on your system.

Solution 3: Grant User Permissions to Write to the Serial Port

Another possible solution is to grant your user account permissions to write to the serial port.

You can do this by running the following command:

$ sudo usermod -a -G dialout $USER

This command adds your user account to the dialout group, which has permissions to write to the serial port. The -a flag is used to append the group to the user’s list of groups, and -G specifies the group to add.

Solution 4: Install the Latest Arduino IDE from arduino.cc

The final solution involves installing the latest version of the Arduino IDE from the official Arduino website.

First, download the latest Arduino IDE from arduino.cc.

Next, extract the downloaded archive and make the install.sh script executable. You can do this by running the following command:

$ chmod +x install.sh

This command changes the permissions of the install.sh script to make it executable. The chmod command is used to change the permissions of a file, and +x is used to add the execute permission.

Finally, run the install.sh script with root privileges by running the following command:

$ sudo ./install.sh

This command runs the install.sh script, which installs the Arduino IDE on your system.

Conclusion

In this article, we’ve explored several possible solutions to the Arduino Serial Communication/Uploader issue in Ubuntu 18.04. By following these steps, you should be able to resolve this issue and continue developing and uploading sketches with the Arduino IDE.

What is the Arduino Serial Communication/Uploader issue?

The Arduino Serial Communication/Uploader issue refers to the problem faced by users when the Arduino IDE is unable to communicate with the Arduino board or upload sketches to it. This issue can occur on Ubuntu 18.04.

Why does the Arduino Serial Communication/Uploader issue happen on Ubuntu 18.04?

The Arduino Serial Communication/Uploader issue can occur on Ubuntu 18.04 due to compatibility issues between the Arduino IDE and the default Java version installed on the system. It can also be caused by user permissions not being set correctly for serial port access.

How can I install Oracle Java 8?

To install Oracle Java 8, you can add the WebUpd8 PPA to your system’s software sources and then run the necessary commands to update the package list and install Oracle Java 8. Detailed instructions are provided in the article.

Can I use OpenJDK 8 instead of Oracle Java 8?

Yes, you can install and use OpenJDK 8 as an alternative to Oracle Java 8. The article provides instructions on how to install OpenJDK 8 and set it as the default Java version on your system.

How can I grant user permissions to write to the serial port?

To grant user permissions to write to the serial port, you can add your user account to the dialout group using the usermod command. The article provides the necessary command to accomplish this.

How can I install the latest Arduino IDE from arduino.cc?

To install the latest Arduino IDE from the official Arduino website, you can download the IDE from their website, extract the downloaded archive, make the install.sh script executable, and then run the script with root privileges. Detailed instructions can be found in the article.

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