• Arduino. Arduino® is a trademark of Arduino S.r.l. The names Arduino UNO R3 and Arduino Nano (classic) identify the genuine boards whose behaviour and pin layouts are simulated. de:volt is not affiliated with, sponsored by, approved by, or endorsed by Arduino. The simulator does not use the Arduino logo in its board artwork.
• BBC micro:bit. BBC and micro:bit names and marks belong to their respective owners, including the BBC and the Micro:bit Educational Foundation. BBC micro:bit V1 identifies the board supported by the simulator. de:volt is an independent product and is not affiliated with, sponsored by, approved by, or endorsed by the BBC or the Micro:bit Educational Foundation. The simulator does not use their logos in its board artwork.
• Raspberry Pi and RP2040. Raspberry Pi and related marks belong to Raspberry Pi Ltd. The simulator presents a generic RP2040 MicroPython Board. References to Raspberry Pi in source and licence records identify upstream software, firmware, or hardware compatibility. de:volt is not affiliated with, sponsored by, approved by, or endorsed by Raspberry Pi Ltd.

All other product names, marks, and registered marks are the property of their respective owners. If you believe a reference should be corrected, contact dev@kapadia.biz.

The current Arduino UNO R3, Arduino Nano (classic), BBC micro:bit V1, and RP2040 board illustrations are original, generic de:volt artwork. They omit third-party logos and decorative wordmarks. Connector, button, display, and pin positions are retained where needed to make the educational simulation accurate and usable.

The simulator distributes or uses the following MIT-licensed software:

• avr8js 0.21.0, Copyright (c) 2019-2025 Uri Shaked.
• rp2040js 1.3.3, Copyright (c) 2021 Uri Shaked.
• BBC micro:bit MicroPython simulator, Copyright (c) 2022 Damien P. George, Micro:bit Educational Foundation.
• MicroPython, Copyright (c) 2013-2026 Damien P. George for the bundled v1.28.0 RP2040 firmware. The older MicroPython runtime vendored with the BBC micro:bit simulator carries Copyright (c) 2013-2022 Damien P. George. Individual files may name additional copyright holders and some ports include separately licensed components.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

The RP2040 simulator includes the RP2040 B1 boot ROM derived from the Raspberry Pi pico-bootrom source, and the bundled RP2040 MicroPython firmware includes pico-sdk components. Copyright 2020 (c) 2020 Raspberry Pi (Trading) Ltd.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

3. Neither the name of the copyright holder nor the names of its contributors
   may be used to endorse or promote products derived from this software
   without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.

The bundled RP2040 firmware is the official MicroPython v1.28.0 RPI_PICO build dated April 6, 2026. MicroPython ports can include third-party components under additional licences. The source distribution and its licence tree are available from the MicroPython v1.28.0 source.

File hashes, pinned versions, local modifications, and asset authorship are recorded with the source in de:volt's third-party notices and the README files beside the distributed firmware and artwork.