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About Wiring

Wiring is an open-source programming framework for microcontrollers.

Wiring allows writing cross-platform software to control devices attached to a wide range of microcontroller boards to create all kinds of creative coding, interactive objects, spaces or physical experiences. The framework is thoughtfully created with designers and artists in mind to encourage a community where beginners through experts from around the world share ideas, knowledge and their collective experience. There are thousands of students, artists, designers, researchers, and hobbyists who use Wiring for learning, prototyping, and finished professional work production.

Wiring's Components

Wiring has three major components:

  • The Wiring Language: A thin layer on top of C++ which simplifies the process of writing embedded programs.

  • The Wiring Framework: A C and C++ API for writing embedded programs, either using C++ or the Wiring Language. Currently, a implementation of the Wiring framework exists for 8-bit AVR microcontrollers. Support for the STM32 line of ARM Cortex M3 and M4 microcontrollers is in progress.

  • Wiring IDE: A cross-platform Integrated Development Environment (IDE) used to write, compile, and upload programs written in the Wiring language to boards which support the Wiring Framework.

This source code repository contains the Wiring Framework and the Wiring IDE.

Getting Wiring

This is the source code repository for the Wiring IDE and Wiring Framework. If you just want to write and upload programs, your best bet is to download an existing binary release. These are available at the Wiring web site for Windows, Mac, and Linux:

If you are interested in developing Wiring, you'll need to build the IDE using this repository. For more information, see the file build/howto.txt (in this repository).

Developing Wiring

Development discussion takes place on Please ask any development-related questions there. To subscribe, send email to:

Archives are available online at:

The developers' portal on the Wiring Wiki is here:

Repository Structure

The Wiring repository structure is as follows:

  • IDE/: Contains the Java sources for the Wiring IDE. The main entry point is in IDE/processing/app/

  • framework/: Contains the Wiring Framework, associated libraries, and its implementations. These implementations (called "cores") contain the nonportable code which targets a concrete microcontroller (or family of microcontrollers).

  • build: Files used when building the Wiring IDE.

  • out/: [generated] This directory is autogenerated during the build process. It contains all of the build artifacts. After a build, this directory includes any downloaded dependencies, Java class and jar files, and the distributable IDE bundles.