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Arduino CLI is a compact, cross-platform command line interface developed by Arduino SA that exposes the full compile-and-upload toolchain of the Arduino ecosystem without requiring the graphical IDE. Aimed at embedded developers, CI/CD pipelines, and educators who need repeatable, scriptable builds, the tool accepts standard *.ino sketches, libraries, and board definitions, then invokes the appropriate gcc-based core, linker, and uploader behind the scenes. Typical use cases include headless compilation on build servers, automated testing of open-source firmware, mass programming of hundreds of boards in production, and integration with advanced editors such as Vim, Emacs, or VS Code through its JSON-based daemon mode. Since its first public commit, the project has released twelve tagged versions; the current stable stream is 1.4.1, which refines library dependency resolution, adds pluggable discovery for newer ST-Link and J-Link debuggers, and synchronizes board package indexes faster over CDN mirrors. All prior releases remain accessible for regression testing, while nightly builds offer early access to upcoming core improvements. The utility is categorized under Developer Tools / Embedded IDEs & Compilers, installs as a single binary for Windows, macOS, or Linux, and respects existing Arduino 1.x and 2.x board manager URLs, allowing seamless side-by-side operation with the desktop IDE. Arduino CLI is available for free on get.nero.com, with downloads provided via trusted Windows package sources such as winget, always delivering the latest version and supporting batch installation of multiple applications.
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