Licenses & credits

Updated Oct 29, 2026

TryBoard itself

The simulator core, web pages and acceptance firmware are written by the TryBoard team. It has no third-party Rust dependencies.

Third-party components

The site ships 34 third-party components under 7 licenses: Apache-2.0, MIT, LGPL-2.1-or-later, SIL OFL 1.1, CC BY-SA 4.0, BSD-3-Clause and BSD-2-Clause. Full names, versions, copyright notices and license texts are in the files below.

Arduino example firmware

Some example firmware is built with the Arduino core for ESP32 and links the components below. The LGPL-licensed parts (arduino-esp32, ESP32Servo) are under the GNU Lesser General Public License 2.1 or later, whose full text is in the third-party notices. Each such bin ships with BUILD_INFO.txt (sketch commit, core release, pinned library commits, board and arduino-cli version) and its sketch source, so you can rebuild it and relink it against a modified library.

arduino-esp32 3.3.2 · LGPL-2.1-or-later AND Apache-2.0 · Copyright (c) Espressif Systems and Arduino contributors
Arduino-IRremote 498dc591b255 · MIT AND BSD-3-Clause · (c) Copyright 2009 Ken Shirriff; (c) Copyright 2016 Rafi Khan; (c) Copyright 2020-2022 Armin Joachimsmeyer et al.; Protocol files also by Daniel Wallner, Kristian Lauszus, Darryl Smith, E. Stuart Hicks, Daniel Weidmann and Bengt Martensson (MIT)
ESP32Servo f7282217605d · LGPL-2.1-or-later · Copyright (c) 2017 John K. Bennett (ESP32Servo); ESP32PWM by Kevin Harrington (hephaestus), 2018; Derived from the Arduino Servo library, originally written by Michael Margolis in 2009 (LGPL-2.1-or-later)
M5GFX a8ebd7bdaae2 · MIT AND BSD-2-Clause · Copyright (c) 2021 M5Stack
M5Unified 35903583211e · MIT · Copyright (c) 2021 M5Stack
pubsubclient 2d228f2f862a · MIT · Copyright (c) 2008-2020 Nicholas O'Leary

Special thanks

Espressif

Chip ROM and ESP-IDF components

Apache-2.0

three.js

3D scene rendering

MIT

React

Web interface

MIT

TinyUSB

USB keyboard and serial

MIT

Google Fonts

Noto Sans SC, JetBrains Mono

SIL OFL 1.1

KiCad and Adafruit

Buzzer, USB-C and servo 3D models

MIT · CC BY-SA 4.0

Full notices

Third-party noticesTHIRD_PARTY_NOTICES.txt · 113 KB Software bill of materialstryboard.spdx.json · 119 KB · incl. build tools

Both files are regenerated on every build from the dependency manifests and asset directories. Modified 3D models are available for download under their original licenses: 9 g 微型舵机 (MIT, sources and changes), Φ12 mm 蜂鸣器 (CC BY-SA 4.0, sources and changes), USB-C 母座 (CC BY-SA 4.0, sources and changes).

Trademarks

ESP32 is a trademark of Espressif Systems. TryBoard is not affiliated with Espressif.

The development boards in the 3D view are visual approximations, not official Espressif models.