The open-source Arduino environment makes it easy to write code and upload it to the i/o board. It runs on Windows, Mac OS X, and Linux. The environment is written in Java and based on Processing, avr-gcc, and other open source software.
THE Arduino SOFTWARE IS PROVIDED TO YOU "AS IS," AND WE MAKE NO EXPRESS OR IMPLIED WARRANTIES WHATSOEVER WITH RESPECT TO ITS FUNCTIONALITY, OPERABILITY, OR USE, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR INFRINGEMENT. WE EXPRESSLY DISCLAIM ANY LIABILITY WHATSOEVER FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, INCIDENTAL OR SPECIAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST REVENUES, LOST PROFITS, LOSSES RESULTING FROM BUSINESS INTERRUPTION OR LOSS OF DATA, REGARDLESS OF THE FORM OF ACTION OR LEGAL THEORY UNDER WHICH THE LIABILITY MAY BE ASSERTED, EVEN IF ADVISED OF THE POSSIBILITY OR LIKELIHOOD OF SUCH DAMAGES.
By downloading the software from this page, you agree to the specified terms.
This page contains the download links to the latest Arduino integrated development environment (IDE) software, release notes, and additional software not included with the IDE such as system images for the Yún.
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NOTICE: Arduino Drivers have been updated to add support for Windows 8.1, you can download the updated IDE (version 1.0.5-r2 for Windows) from the download links below.
Arduino 1.5.7 (release notes):
This version of the Arduino IDE supports only the Intel Galileo board that has the x86 architecture.
Active development of the Arduino software is hosted by GitHub. See the instructions for building the code.
If you are looking for previous releases of the Arduino IDE you can find them on the previous releases page.
Easy Procedure (recommended)
Download the Upgrade Image then please follow the steps in the Yún sysupgrade tutorial.
This procedure is only recommended to advanced users who wish to completely re-flash the Yún including its U-Boot bootloader. These instructions on reflashing the base images are for reference only. Following them will void your Yún's warranty.
The list of available packages for the Yún is available here.