A plugin to make programming the arduino in eclipse easy
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#Sloeber, the Arduino IDE for Eclipse

The Eclipse IDE (Integrated Developement Environment) is a full featured programming editor with many fantastic features to help you code more quickly and easily. The Arduino IDE is great for what it does – but it doesn't do much to help writing, navigating and understanding your (and other people's) code.

The Sloeber IDE bridges that gap and helps move you to a more powerful development environment whilst keeping the Arduino hardware and libraries that you love (and make life simple).

Software Logic to program Open Electronic Boards in an Eclipse Runtime (SLOEBER)

It works on MS Windows, Mac OSX and Linux.

What if I am not a developer?

If you are not a developer and don't want to build from sources, then there are precompiled product packages and update sites available. See the details at http://sloeber.io/.

What if I am a developer?

Below are instructions on how to download and compile the source code from the command line and from eclipse. You only need to do one. Also subscribe to the developers list by clicking here or by sending a mail with subject Subscribe to eclipse-arduino-dev@freelists.org (this is not for support questions)

There are lots of issues in the release that seem fixed.

We close issues when they have been validated as part of the nightly. Therefore the open list no longer contains items fixed in the nightly. Known issue fixed in the last nightly can be found with this query: is:issue is:closed -label:"status: fixed in nightly"

Quick Installation


Please install [git] (http://git-scm.com/downloads) and [maven] (http://maven.apache.org/download.cgi).

Build from the command line from source for your os and the default eclipse instance

git clone https://github.com/jantje/arduino-eclipse-plugin
cd arduino-eclipse-plugin
mvn clean -Dtest=RegressionTest verify

Running the build from source IDE/Plugin

Sloeber can be started, e.g. on a 64-bit mac, with:

open io.sloeber.product/target/products/io.sloeber.product/macosx/cocoa/x86_64/sloeber/sloeber-ide.app

On Linux you can start Sloeber using the provided shell script:



  • win32x64.cmd (if you are on 64 bits windows)
  • win32x32.cmd (if you are on 32 bits windows)

Mac OSX and Linux

  • ./build_then_launch_plugin.sh


Build Options

You can control the maven build with the following profiles: (this list may not be complete as new eclipse versions are added nearly immediately)

  • oxygen
  • neon (builds against the neon repositories (4.6))
  • luna (builds agains the luna repositories (4.4))
  • mars (builds agains the mars repositories (4.5))
  • win32 (builds for 32 bit windows)
  • win64
  • linux32
  • linux64
  • mac64
mvn verify -Plinux32 -Dtest=RegressionTest (builds for neon and linux 32 bits)
mvn verify -Pwin32,mars,linux32 -Dtest=RegressionTest

To build for neon and the platform you are running on:

mvn clean verify -Dtest=RegressionTest

what is this -Dtest=RegressionTest about

 mvn builds and run tests automagically. However many junit tests in Sloeber are very extensive and will always have failures.
 By adding -Dtest=RegressionTest anly the regression test is run and this test should be successfull.

Setting up a repository

If you want to import the latest code based plugin to another Eclipse setup you have then it is possible to setup a local repository to install the plugin you have just built. Just add a local repository with location arduino-eclipse-plugin/io.sloeber.product/target/repository

alt text

Developing (Improving) the Plugin

Adding Eclipse PDE (Plugin Development Environment)

You should already have a supported Eclipse version installed (the CDT package makes a good start point). Let's add:

Help → Install New Software → Work with: → All Available Sites

Now search/select the Eclipse Plug-in Development Environment

Note: This may take a while to download all the available packages.

alt text

Adding Eclipse JDT (Java Development Tools)

If you're not using Eclipse with the JDT you'll need to install them. To do this you first need to open the Dialog for installing new Software:

Help → Install New Software

There you select for Work with: YOUR_ECLIPSE_RELEASE - http://download.eclipse.org/releases/YOUR_ECLIPSE_RELEASE

After that, select

Programming Languages → Eclipse Java Development Tools

Add EGit - Eclipse Git Team Provider

To install EGit you'll need to do the following:

Help → Install New Software

There have to enter the following URL and press ENTER.

Now you have to open up the Eclipse Git Team Provider Category and select Eclipse Git Team Provider. Then press next and follow the instructions.

Add nebula (for the plotter)

To install nebula you need the snapshot

Help → Install New Software

There have to enter the following URL and press ENTER.

Now you have to open up the Nebula Release all widgets and examples Category and select Nebula widgets. Then press next and follow the instructions.

Importing an Arduino Plugin Project into Eclipse

After you installed all the plugins you'll need to restart Eclipse.

Eventually your plugin source code will be ready to be used with Eclipse. There are two ways to import your projects into Eclipse:

1. Via a Command Line

If you're using Windows you should first install GitHub for Windows.

First you should open a command line, and change the directory to the directory where you want to store your Project.

Now you have to clone your Fork:

git clone https://github.com/YOUR_FORK/arduino-eclipse-plugin.git

After that you should import the Project to Eclipse:

File → Import → Plug-in Development → Plug-ins and Fragments

You should select all as shown in this picture.

alt text

You may need to change the directory to match the directory where you cloned the project into.

Press Next.

In the next window you have to select which Plug-in fragments you want to import. Select all that are appropriate:

alt text

Now press Finish, and it should import the selected Projects.

2. Via EGit interface.

File → Import → Git → Projects from Git → Clone URI

  • Now type your fork in to URI, for example: https://github.com/YOUR_FORK/arduino-eclipse-plugin.git
  • Press "Next".
  • Branch Selection: master
  • Local destination: /home/your_name/git/arduino-eclipse-plugin or c:\git\arduino-eclipse-plugin
  • The rest of page unchanged.
  • Next
  • Select a wizard: Import Existing Projects
  • Next
  • Import Projects
  • Select all the projects
  • Finish

After all it should look like this:

alt text

Set the Code Formatting

To avoid having changes all the time because of different formatting this project uses the standard "Eclipse [built-in]".

Go to

Window → Preferences → Java → Code Style → Formatter

and check this setting.

Set the Warning Level

We want to keep the chance of missing a problem in the code to a minimum and to keep clean and tidy code. Development is aiming to keep compiler warnings to a minimum (items that show up in the Problems tab under Warnings) with specific settings. Please change your settings from default as follows:

Go to

Window → Preferences → Java → Compiler → Errors/Warnings

and change the following from their defaults.

My current settings are as follows:

![alt text](images_plugin_dev_setup/Screenshot-Preferences 1.png "screen capture") ![alt text](images_plugin_dev_setup/Screenshot-Preferences 2.png "screen capture") ![alt text](images_plugin_dev_setup/Screenshot-Preferences 3.png "screen capture") ![alt text](images_plugin_dev_setup/Screenshot-Preferences 4.png "screen capture") ![alt text](images_plugin_dev_setup/Screenshot-Preferences 5.png "screen capture")

  • Name shadowing and conflicts: Set all to Warning.
  • Unnecessary code: Set all to Warning.
  • Null analysis: Set all active (not greyed out) to Warning.
  • Potential programming problems: Set all to Warning.

Running the Plugin

Then running is very simple - just right click io.sloeber.core and select:

Run as → Eclipse Application

OR, if you'd like to debug,

Debug as → Eclipse Application

Eclipse will launch a new workbench disabling the installed version if any, and updating it with the plugin version loaded in the current workspace.

Now, just set up fresh again with your project settings, Preferences/Arduino, to point to IDE and private libs.

New Project → Arduino → New Arduino Sketch

All should work. You can set breakpoints in the launching Eclipse if you ran as debug. Happy developing!