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Important Notice: This repository contains the legacy Arduino IDE 1.x, which is no longer in active development. For the latest features and updates, please visit the Arduino IDE 2.x repository. If you encounter issues related to the newer IDE, please report them there.

Arduino is an open-source physical computing platform based on a simple I/O board and a development environment that implements the Processing/Wiring language. Arduino can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash, Processing and MaxMSP). The boards can be assembled by hand or purchased preassembled; the open-source IDE can be downloaded for free at https://arduino.cc.

Github

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Bug reports and technical discussions

Security

If you think you found a vulnerability or other security-related bug in this project, please read our security policy and report the bug to our Security Team 🛡️. Thank you!

e-mail contact: security@arduino.cc

Installation

Detailed instructions for installation on popular operating systems can be found at:

Contents of this repository

This repository contains just the code for the Arduino IDE itself. Originally, it also contained the AVR and SAM Arduino core and libraries (i.e. the code that is compiled as part of a sketch and runs on the actual Arduino device), but those have been moved into their own repositories. They are still automatically downloaded as part of the build process and included in built releases, though.

The repositories for these extra parts can be found here:

Building and testing

Instructions for building the IDE and running unit tests can be found on the wiki:

Credits

Arduino is an open-source project, supported by many. The Arduino team is composed of Massimo Banzi, David Cuartielles, Tom Igoe, and David A. Mellis.

Arduino uses GNU avr-gcc toolchain, GCC ARM Embedded toolchain, avr-libc, avrdude, bossac, openOCD, and code from Processing and Wiring.

Icon and about image designed by ToDo.