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midi2 Wiki

Portable MIDI 2.0 infrastructure: C99, zero dependencies, zero allocation. Runs from AVR to desktop.

Contents

Getting Started

• Getting Started: quick setup, first build, basic usage
• Integration Guide: Arduino LM, PlatformIO, ESP-IDF, Zephyr, CMake, vendor

Architecture

• Architecture: 4-layer model, module boundaries, data flow
• Module Reference: all 7 modules with their public API surface

MIDI 2.0 specifications

• Spec Guide: coverage map of every MIDI 2.0 specification
• UMP Message Reference: every UMP message type with bit layouts
• MIDI-CI Message Reference: every CI message with field descriptions

Validation

• Hardware Validation: test results on real hardware

Contributing

• Design Decisions: key architectural choices and their rationale

Quick links

• Repository: github.com/sauloverissimo/midi2
• Latest release: v0.9.0
• License: MIT
• Distribution: Arduino Library Manager, PlatformIO Registry, ESP-IDF Component Manager, Zephyr west module, CMake find_package / FetchContent
• Tests: 383 passing across 8 suites, 17 CI jobs (gcc / clang / MSVC / Apple clang / x86 32-bit / ASan + UBSan / ARM Cortex-M / Cortex-A / RISC-V / AVR / AVR LUFA example firmware / C++ header / ESP32 / Zephyr native_sim) plus a CMake matrix on Linux + macOS + Windows
• Spec coverage: M2-104-UM v1.1.2 (UMP) 100%, M2-101-UM v1.2 (MIDI-CI) 100%