There are 1 repository under usb-midi-interface topic.
UMK4x4 - 4-16 in/out and 3-15 IN/3OUT USB MIDI interface for STM32F103 series board
2021-2024: RPi Pico 2040 and ST7789, ILI9486, ILI9488 LCD Touch Macro keypad, VS1053 music player, PCM5101 USB-Audio-DAC, and OLED SSD1306, with RPi-cmake-SDK, Arduino IDE (both mbed and C++ SDK-based), and Micropython. using Windows, Linux and RPi Os.
A configurable USB MIDI 1.0 device class driver for the Zephyr RTOS.
STM32F103C8 (Blue Pill Board) as USB-Midi