MatrixOS

Matrix OS 3.2 – Harmonic Trinity

Matrix OS 3.2 introduces the brand-new Sequencer App, completing the creative trinity of the Mystrix ecosystem alongside the Note App and Custom Control Map.
Designed to be intuitive yet immensely powerful, the Sequencer App features 8 tracks, 14 clips per track, 128 steps per clip, non-quantized recording, a live clip launcher, and much more.
Make sure you have a Micro SD card ready!

New Features

Sequencer App: The most powerful app on Matrix OS to date.

Note App split-mode visualizer: Clearer visual feedback when using split layouts.

Note App arpeggiator BPM tapper: Tap-tempo support for fast tempo matching.

Note App external MIDI input visual: Note App now reacts visually to MIDI input from external sources.

Changes

Note App UI refinements: Minor visual adjustments for improved clarity.

Note App chord control UX updated: More intuitive chord interaction.

System Settings UI updated: Improved layout and usability.

Bug Fixes

SysEx transmission fixed: SysEx messages now send correctly.

Custom Control Map fixes: Resolved several mapping issues.

Keyboard event reliability improved: Fixed issues causing keyboard events to not send correctly.

Documentation

The Project Matrix Wiki has been updated for Matrix OS 3.2.
Check it out at https://matrix.203.io

Matrix OS 3.2 – 和音三体

Matrix OS 3.2 带来了全新的音序器应用，与音符应用和自定义控制映射共同构成 Mystrix 创作套件的三大核心。
音序器在设计上直观易用，同时具备极强的扩展能力，支持 8 条轨道、每轨 14 个片段、每个片段 128 步、非量化录制、实时片段启动等强大功能。
请提前准备好 Micro SD 卡以获得完整体验。

新功能

音序器应用：目前 Matrix OS 中功能最强大的应用。

音符应用分屏可视化：在分屏布局下提供更清晰的视觉反馈。

音符应用琶音器 BPM 点拍：支持点拍方式快速匹配节奏。

音符应用外部 MIDI 输入可视化：音符应用现在可对外部 MIDI 输入作出视觉响应。

变更

音符应用界面优化：细微 UI 调整，提升整体清晰度。

音符应用和弦控制交互更新：更直观、更易上手的操作方式。

系统设置界面更新：布局与可用性提升。

错误修复

修复 SysEx 发送问题：SysEx 现在可以正确发送。

修复自定义控制映射中的部分问题。

修复导致键盘事件无法正确发送的问题。

文档更新

Project Matrix Wiki 已针对 Matrix OS 3.2 完成更新。
访问：https://matrix.203.io

MatrixOS-V3.2.0-Mystrix.uf2:

203 Systems – Mystrix & Mystrix Pro

Matrix OS 3.1 - Smooth Grooving

Matrix OS 3.1 is a minor feature update focused on smoother performance, improved stability, and small workflow enhancements.

New Features

Euclidean Rhythm: You can now set a Euclidean Rhythm pattern for the Note App arpeggiator.

QoL and UI Updates: Minor quality-of-life improvements and subtle UI changes in Note App.

Bug Fixes and Stability Improvements: Numerous fixes across the OS and MIDI engine, resulting in noticeably improved stability.

Matrix OS 3.1 - 丝滑节奏

Matrix OS 3.1 是一次以稳定性和细节优化为主的小更新，让整体体验更流畅、更稳定。

新功能

欧几里得节奏：音符应用的琶音器现在支持欧几里得节奏设置，让律动更具变化。

体验和界面更新：音符应用加入多项小幅便捷性与界面调整，让操作更加自然顺手。

错误修复与稳定性提升：系统与 MIDI 引擎进行了大量修复，整体稳定性明显提升。

MatrixOS-V3.1.0-Mystrix.uf2: 203 Systems - Mystrix & Mystrix Pro

Matrix OS 3.0 - Make Some Noise, Shape It Your Way

Matrix OS 3.0 brings long-awaited Python application support, file system capabilities, and a super-enhanced Note App with powerful new musical features.

If you can't update the OS, or the OS won't boot. Please flash the bootloader update first (Matrix-Bootloader-Update-2025-9-25.uf2), then flash the OS.

New Features

Python Application Support : Write your own apps directly in Python.

Python REPL: Interactive Python shell for real-time coding and experimenting.

Matrix OS File System API: File system support for applications.

Micro SD Support: Load applications from Micro SD cards.

USB Mass Storage Mode: Access your SD card directly from your computer.

Note App V2: Complete rewrite with modern interface, new layouts, and expressive features.

Note App V2 - Control Bar: New bar with pitchbend, transpose, octave, swap layout, and more.

Note App V2 - Note Latch: Latch notes with a single toggle.

Note App V2 - Chord Mode: Perform chords using key combos.

Note App V2 - Arpeggiator: Advanced arpeggiator with multiple modes and configurations.

Note App V2 - Custom Scale: Build your own musical scales.

Note App V2 - Diatonic Scale: Play in-scale using modern diatonic options.

Note App V2 - MIDI Clock Out: Send MIDI clock sync to external hardware and DAWs.

Lighting App BPM Sync: Synchronize lighting effects to BPM for immersive audiovisual experiences.

Fast Text Scroll System: Advanced fast-scroll mode for quicker access to functions.

Customizable Application Launcher: Create sections, rearrange, and hide apps in your launcher.

C++ Application Repo Linking: Link and compile user apps from remote repositories by adding one line to your app list.

Improvements

Enhanced LED performance: Reduced glitching and improved visual fidelity.

Faster and smoother UI transitions: Better experience throughout the system.

Improved system responsiveness: Enhanced overall stability and speed.

System-wide refinements: Improved reliability across all apps.

Bug Fixes

Fixed Note App display and control inconsistencies: More predictable interface behavior.

General stability fixes: Increased reliability throughout the system.

Changes

System-wide UI rework: Many apps got updated UIs; brightness and rotation controls are now in System Settings only.

Poly Playground App removed: Fully integrated into Note App V2.

Matrix OS 3.0 带来了期待已久的 Python 应用支持、文件系统功能以及功能强大的全新音符应用，包含丰富的演奏功能。

如果无法更新系统，或系统无法启动，请先刷入Bootloader更新文件（Matrix-Bootloader-Update-2025-9-25.uf2），然后再刷入系统。

新功能

Python 应用支持 🐍：使用 Python 直接编写应用。

Python REPL：交互式 Python 外壳，用于实时编码与实验。

Matrix OS 文件系统 API：供应用使用的文件系统。

Micro SD 支持：从 Micro SD 卡加载应用。

USB 大容量存储模式：从计算机访问 SD 卡内容。

音符应用 V2：完全重写，具有现代化界面、新布局与丰富表现功能。

音符应用 V2 - 控制栏：新的控制栏，包含弯音、移调、八度、切换布局等功能。

音符应用 V2 - 音符锁定：一键锁定音符。

音符应用 V2 - 和弦模式：通过按键组合演奏和弦。

音符应用 V2 - 琶音器：支持多种模式与配置的高级琶音器。

音符应用 V2 - 自定义音阶：构建属于自己的音阶。

音符应用 V2 - 自然音阶：使用现代自然音阶选项在音阶内演奏。

音符应用 V2 - MIDI 时钟输出：向外部硬件和 DAW 发送 MIDI 时钟同步信号。

灯光应用 BPM 同步：让灯光效果与 BPM 同步，实现沉浸式视听体验。

快速文本滚动系统：高级模式实现更快的文本滚动，便于快速操作与回忆功能。

可自定义的应用启动器：创建分区、重新排列和隐藏启动器中的应用。

C++ 应用仓库链接：Matrix OS 现在可通过在应用列表中添加一行来链接并编译远程仓库中的用户应用。

改进

增强的 LED 性能：减少闪烁并改善视觉质量。

更快更流畅的 UI 过渡：全系统体验更加顺畅。

改进的系统响应性：整体稳定性与性能提升。

系统级优化：全局应用更可靠的运行表现。

错误修复

修复音符应用显示与控制不一致的问题：更一致的交互体验。

通用稳定性修复：整体可靠性提升。

变更

系统范围的 UI 重做：许多应用的 UI 进行了调整，亮度和旋转控制现在仅在系统设置中。

移除 Poly Playground 应用：已完全集成至音符应用 V2 中。

MatrixOS-V3.0.0-Mystrix.uf2:

203 Systems - Mystrix & Mystrix Pro

Matrix OS 2.6 - Control more, Customize more, Play more

New Matrix OS brings powerful new tools, optimizations, and fun features to further unleash the potential of Mystrix!

New: Custom Control Map APP — Super powerful, live configurable customizable control surface. Customize yours using edit.203.io New: Poly Playground APP — Inspired by Poly Playground IOS app (Demo; will merge into Note APP V2 in Matrix OS 2.7). New: Strum APP beta 🪕Play your Mystrix like an Omnichord using the 2 touch strip! New: System-level SysEx and HID APIs. (Beta feature & Docs release soon) New: After open Note APP and Performance APP action menus, it will auto send an all note off signal (CC 123) Improved: Mystrix Standard keypad driver. Improved: General device optimization — smoother and more responsive system-wide. Fixed: Mystrix touchbar toggle state not saving correctly. Fixed: Reversi Game APP visual update. Fixed: Reversi Game APP reset logic. Fixed: Mystrix Pro pre-KC batch device config not loading correctly.

Known Issue:

• Custom Control Map APP currently only sends SysEx via USB MIDI port 1.
• Strum APP will crash if Mystrix is not facing up or down.

Matrix OS 2.6 - 掌控更多，自定更多，玩得更多

全新Matrix OS为魔矩带来了了更强大的工具、优化和有趣的新功能，让你的设备潜能全面释放！

新增：自定义控制面板APP — 超强大的实时可配置控制界面。使用 edit.203.io 轻松自定义你的控制器！
新增：和弦游乐场APP — 灵感来自 Poly Playground IOS 应用（预览版，将在 Matrix OS 2.7 中整合进 音符APP V2）
新增：拨弦APP Beta版 🪕 使用两条触控条，把魔矩当作 Omnichord 弹奏！
新增：系统级 SysEx 和 HID API（测试版，文档即将发布）
新增：开启音符APP 和 演奏APP 的动作菜单中会自动触发全音关闭 （CC 123) 优化：魔矩标准版键盘驱动
优化：全局性能优化 — 系统更加流畅、响应更快
修复：魔矩触控条开关状态保存异常的问题
修复：翻转棋APP视觉更新问题
修复：翻转棋APP重置逻辑问题
修复：魔矩Pro 正式发售前的批次的设备配置无法正确加载的问题

已知问题：

• 自定义控制面板APP 当前仅通过 USB MIDI 端口1 发送 SysEx 数据。
• 拨弦APP只在Mystrix朝向上或者下的时候才能用

• MatrixOS-V2.6.0-Mystrix.uf2:
  • 203 Systems - Mystrix & Mystrix Pro

Taste Of Project Matrix

Added many useful, cool, or random features to the OS. It's a great showcase of what Matrix OS & Mystrix is capable of.

New: System Global Animation (Toggleable) New: Companion App - BitFocus Companion) Integration New: Game Pad APP (As a demo to customizable keymap) New: Dice APP New: Reversi Game APP New: Performance App Touch Combo Key New: Better LED Subsystem for Mystrix with dithering support New: LED Partition - Supports adjusting brightness multiplier for Mystrix Pro Underglow New: Dual MIDI port - Allows Apollo Studio to connect with Mystrix without special driver support New: Underglow for Mystrix boot animation New: Underglow in Note APP note view. New: Toggle Button now shows On or Off in their text scroll New: Mystrix Pro Keypad User Calibration New: Note APP now can spilt pad vertically New: Performance APP now supports 4 customizable palettes. Updated: Lighting App V2 Improved: Color Picker UI Improved: Better Keypad driver for Mystrix Standard & Mystrix Pro. Improved: Better LED brightness steps. Improved: Bluetooth Secure Connection - Enables Windows and Android Support. (via @M4kI9H7) Fixed: APPs out of order in App Launcher Fixed: Fixed some memory leaks Fixed: Performance App Flicker Reduction Toggle Fixed: Note App overlap default value not showing correctly Fixed: Issue sending some special midi packet (#28) Changed: Mystrix now shows Mystrix / Mystrix Pro in device name Changed: There's now a Device Setting page in the system setting for device-specific settings. Removed: Performance App Compatibility Mode - Unipad supports Mystrix now, no need to keep it around.

添加了许多有用、炫酷或乱七八糟的功能到操作系统中。主要是展示 Matrix OS 和 魔矩的各种可能性。

新增：系统全局动画（可开关）
新增：Companion APP - 配合 BitFocus Companion 和实现超强电脑端控制功能 新增：游戏手柄APP（作为可自定义键位APP的Beta预览）
新增：骰子APP
新增：翻转棋游戏APP
新增：表演APP 触控组合键
新增：魔矩全新 LED 子系统，支持色彩抖动
新增：LED 分区 - 支持调整 魔矩Pro 底灯的亮度倍数
新增：双 MIDI 接口 - Apollo Studio 可以在不需要特殊驱动的情况下连接魔矩 新增：魔矩Pro启动动画底灯 新增：记事应用的底光显示
新增：切换按钮在文字滚动中显示开/关状态
新增：魔矩Pro 压力感应用户自校准
新增：音符应用支持垂直分割按键
新增：性能应用现在支持 4 种可自定义的调色板
更改：照明APP V2
更改：色彩选择器界面
更改：更好的 魔矩和 魔矩Pro 键盘驱动
更改：改进的 LED 亮度等级
更改：蓝牙安全连接 - 支持 Windows 和 Android链接（感谢 @M4kI9H7）
更改：应用启动器中的应用顺序错误
更改：修复了一些内存泄漏问题
更改：性能应用中的闪烁减少选项
更改：音符应用默认重叠值显示不正确的问题
更改：发送某些特殊 MIDI 数据包的问题（#28）
更改：魔矩现在在设备名称中显示为 Mystrix / Mystrix Pro
更改：系统设置中新增“设备设置”页面，用于设备特定设置
去除：性能应用兼容模式 - Unipad 现已支持魔矩，不再需要此功能

• MatrixOS-V2.5.0-Mystrix.uf2:
  • 203 Systems - Mystrix & Mystrix Pro

New: Production version of Matrix & Matrix Pro (Rev C) is now supported Improvement: Reworked Keypad driver on Matrix

新增：新增了量产版Matrix和Matrix Pro（Rev C)的支持 改善：重构了Matrix的按键驱动

• MatrixOS-V2.4.1-Matrix.uf2:
  • 203 Electronics - Matrix & Matrix Pro (Rev B and Rev C) （Note: V1.1 is now called Rev B. In the future, Matrix will imply all Matrix that was available for public sales. Dropping the Matrix versions)

New: MIDI SysEx is now supported by the OS (USB MIDI only) New: Performance Mode has experimental support for Apollo Studio - Pending 1.8.12 Release Fixes: USB MIDI now works correctly on Mac OS Improvement: Improved USB MIDI driver's performance Improvement: Improved LED backend's stability

新增：OS现在支持了MIDI SysEx (仅限USB MIDI） 新增：演奏模式新增了实验性的Apollo Studio支持 - 1.8.12 暂未发布 修复：USB MIDI现在在Mac OS上面工作正常了 提升：优化了USB MIDI驱动的性能 提升：优化了LED后端的稳定性

• MatrixOS-V2.4.0-MatrixPro.uf2:
  • 203 Matrix Pro V1.1

Changes: Rebased Matrix OS for ESP32 family on the latest ESP-IDF V5.0 Changes: High-performance keypad driver is enabled for Matrix Pro Fixes: Some LEDs won't appear in the lowest brightness setting.

修改：ESP32系列的的Matrix OS重构到了最新的ESP-IDF V5.0 修改：Matrix Pro实装了超高性能的按键驱动 修复：在超低亮度下，一些LED会消失。

• MatrixOS-V2.3.0-MatrixPro.uf2:
  • 203 Matrix Pro V1.1

Fix: Velocity remap calculation

修复：压力感应重映射算法

• MatrixOS-V2.2。1-MatrixPro.uf2:
  • 203 Matrix Pro V1.1

New: Piano & Scale APP （UI guide) Modify: Now the OS boots into the application launcher by default Modify: The brightness range for fine tune menu changed from 0255 to 0100 Modify: Overhaul of OS kernel and UI framework Modify: Increased the brightness multiplier for Matrix Pro underglow

新增：钢琴&音阶模式 (UI操作指南） 修改：开机后默认进入Matrix OS的应用启动主界面 修改：亮度的调节的显示范围从0255变成了0100 修改：大幅修改了Matrix OS的内核以及UI渲染框架 修改：Matrix Pro的底灯亮度倍率增大

• MatrixOS-V2.2-MatrixPro.uf2:
  • 203 Matrix Pro V1.1

Modify: Matrix Pro's custom velocity sensing calibration no longer needs to reboot to take effect. (Revert back to default still needs reboot) Fix: Velocity curve didn't get remapped correctly Fix: Velocity Sensitivity toggle didn't work Fix: Some UI has an incorrect name Fix: Some UI elements leak long press input to the base UI.

修改：Matrix Pro的自定义压力感应配置不需要重启就能应用了 （切换回默认还是需要重启） 修复： 压力感应曲线没有重映射 修复： 压力感应开关无效 修复： 某些UI的名称有错 修复： 某些UI控件的长按会向下底层UI泄露

• MatrixOS-V2.1.1-MatrixPro.uf2:
  • 203 Matrix Pro V1.1

New: Device ID system New: Brightness Control Menu New: Matrix Pro Velocity Sensitivity Recalibration Fixed: Unipad Support (Via compatibility Mode)

新增： 设备ID系统 新增： 亮度控制UI 新增： Matrix Pro压力感应重校准 修复： Unipad支持 (兼容模式）

• MatrixOS-V2.1-MatrixPro.uf2:
  • 203 Matrix Pro V1.1

Matrix OS's first stable release

Matrix OS的首次稳定发布

• MatrixOS-V2.0-MatrixPro.uf2:
  • 203 Matrix Pro V1.0
  • 203 Matrix Pro V1.1