Eclipse Arduino

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  • Eclipse Plug-in for importing projects into Eclipse CDT exported from Arduino Create.
  • The code compiles successfully in the ARDUINO IDE and I am able to program is with the ARDUINO IDE, but NOT with ECLIPSE. Here is my setup: Eclipse IDE for C/C Developers Version: 2018-09 (4.9.0) Build id: 201 OS: Windows 7, v.6.1, x8664 / win32 Java version: 1.8.0121. From the marketplace I installed the Eclipse C IDE for.

The Eclipse C IDE for Arduino (formally Arduino C IDE) is a set of plug-ins that provide a professional, yet easy to use development environment for Arduino programming that leverages the power of the industry leading Eclipse CDT. Building on Eclipse, the Arduino programmer can learn important skills and take advantage of the larger Eclipse.

Hello Everyone!

I’m facing a problem related to Eclipse IDE with Arduino Plugin (Site) by Jan Baeyens. I’m running Arduino IDE V1.6.0, Eclipse Luna 4.4.2 and Arduino Plugin v2.4, all in Windows 7.

Everything is installed correctly, and I was able to compile and to upload several codes from the IDE. However, when I’m editing a .ino file, Eclipse don’t give me any code completion (ctrl+space).

For example, in this code:

When I type lcd. and try the ctrl+space, Eclipse can’t figure out what methods could complete the sentence. But, when I compile and upload, everything works as it shoulds.

I already tried going to Window > Preferences > C/C++ > Editor > Content Assist > Advanced and marking all the proposals. But it was useless.

Could you help me figure out whats wrong?


The Arduino C++ extension for the Eclipse C/C++ IDE has been on the Eclipse Marketplace for a couple of years. It has been fairly popular consistently placing in the top 100 entries. For the Eclipse Photon release, we decided it was ready for prime time and it is now a full member of the Eclipse C/C++ IDE. Download and install the IDE and you’re ready to go.

This article will walk through how to use the Eclipse C/C++ IDE to work with your Arduino boards. If you have used previous versions, this will mostly be a refresher. There is one major improvement on how you view the output of your board. If you haven’t used it and want to use the professional features of the IDE that you don’t get in the official Arduino IDE, then you’re in for a treat.


Arduino Downloads Manager

The IDE does not ship with the toolchains and SDKs needed to build Arduino sketches. You can use the Arduino Downloads Manager available in the Help menu.

With the Packages tab selected, click Add to see the list of available packages. An Arduino package supports a collection of boards. Hold your mouse over the platform name to see the list of boards supported by this package. In my case, I have an Arduino Uno which is supported by the Arduino AVR Boards package. Check it and click OK to install which can take a few minutes.

If you don’t see a package that matches your board, there are others available. A list is maintained on the Arduino wiki. You can copy the URL to the package index JSON file and add it on the C/C++ Arduino preference page.

Once added, if you open the list of Packages again, you will see the packages offered from that site.

New Arduino Project

Use the New C/C++ Project wizard to create a new Arduino C++ Sketch project. This creates a simple project with a single source file populated with the familiar setup and loop functions.

New Arduino Launch Target

Before we can build and launch the project, we need to tell the IDE about the board we’re using. For this, we use the Eclipse Launch Bar which is now a regular part of the Eclipse C/C++ IDE. It is composed of three buttons and three selectors. The selectors determine the launch mode, what to launch, and where to launch it or the launch target. And it does read as a sentence. The three buttons on the left are for Build, Launch, and Stop.

Click on the third selector and select New Launch Target in the drop-down. Select Arduino as the target type then enter a name, the serial port, and the board type. There may be additional parameters to set based on the board type. The Uno is pretty simple. Also, you can ignore the Programmer setting for now since we’re using the standard flash writer to program the device.


New for Eclipse Photon is an adapter to allow the Terminal to work with Arduino boards. Click on the Terminal toolbar button to create a new Terminal. Select Arduino Serial Monitor for the terminal type, select the board and set the communication parameters you’d like to use for the Terminal.

You can drag the terminal over to the side so that you can have the Console and Terminal open at the same time. You’ll be using these two views extensively while working with your board.


Eclipse Arduino Plugin

To test out our setup, we’ll enter in a standard Hello World program that sends a message out every 200 ms with an incrementing counter.

Eclipse Arduino Serial Monitor

Now hit the Build button in the Launch Bar and watch the output from the build on the Console. At the end, you’ll see a message showing how much program store and initial RAM your program uses.


Eclipse Arduino

Finally, hit the Launch button in the Launch Bar. If you had a previous program printing the Terminal, it’ll stop and control of the serial port handed over to the flash writer program. The download only takes a few seconds and you’ll then see the Terminal start up and the output from your new program appear.


Once you have your tools set up, the world of Arduino is available in your Eclipse C/C++ IDE. You can check out the Arduino Download Manager again and click on the Libraries tab to download one of the hundreds of libraries available from the community to help program the electronics project of your dreams. And while you’re at it, you get to use the professional features of the Eclipse C/C++ IDE such as content assist and source navigation to help you take advantage of the power of this little platform. Enjoy!

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