NOTICE

ArduinoNRF
Copyright 2026 dunknowcoding (NiusRobotLab)

Author / maintainer:  dunknowcoding
YouTube channel:      NiusRobotLab

This product includes software originally developed by dunknowcoding
(NiusRobotLab) and licensed under the Apache License, Version 2.0 (see the
LICENSE file).

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What you may and must do (summary of the Apache 2.0 terms)
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You MAY use this software for any purpose, including commercial products,
modify it, and redistribute it.

If you redistribute it or ship it inside a product, the License requires
that you:

  * Keep this attribution to the original author, dunknowcoding
    (NiusRobotLab) — see Section 4(d). Retaining this NOTICE file (or
    reproducing its attribution in your own documentation / credits)
    satisfies this.

  * State the changes you made. Any file you modified must carry a
    prominent notice that you changed it — see Section 4(b).

  * Include a copy of the Apache License 2.0 with the distribution — see
    Section 4(a).

Patents: under Section 3, every contributor grants you a patent license to
their contributions, and that grant terminates automatically for anyone who
starts patent litigation alleging that this software infringes a patent. In
other words, this work is contributed with a patent grant and cannot be
weaponized through patent claims against its users.

This is a plain-language summary only; the LICENSE file is the binding text.

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Third-party components (each retains its own license)
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The Apache License 2.0 above covers ArduinoNRF's own code. Vendored
third-party sources keep their original licenses, which are stated in the
files themselves:

  * Apache Mynewt NimBLE  (hardware/arduinonrf/nrf52/libraries/NimBLE/src,
    excluding the mdk/ device headers) — Apache License 2.0,
    Copyright The Apache Software Foundation and contributors.

  * Nordic Semiconductor MDK device headers and CMSIS
    (.../libraries/NimBLE/src/mdk and the cores' MDK/CMSIS headers) —
    Nordic's 5-clause BSD-style license and ARM CMSIS license; see the
    headers of those files.

  * adafruit-nrfutil, dfu-util, and the GNU Arm toolchain are referenced as
    upload/build tools via the Board Manager index and are distributed under
    their own respective licenses by their authors.

When in doubt, the per-file license header governs that file.