Arduino USB
- Pluggable USB vs Tiny USB
In 2015, Arduino added PluggableUSB support
for most official Arduino devices
- PluggableUSB supports more functionality for
Arduino models with embedded USB
- That functionality is typically incompatible with Tiny USB, and vice versa.
- Espressif
supports ESP32 USB for Arduino via
Adafruit's TinyUSB,
- also used for mbed_rp2040, ArduinoCore-samd and Pico
EspTinyUSB USB composite device lacks MIDI support
- STM32duino's USB device support is relatively limited.
- A Blue Pill composite USB device library
for Roger Clark's Maple-based Arduino STM32
is incompatible with current STM32duino device USB based on STM32Cube
- USBLibrarySTM32 implements PluggableUSB API for STM32
- supports composite devices for STM32F103C8 Blue Pills,
which have 8 endpoints, but not Black Pills.
Arduino USB MIDI
- ARDUINODOCS MIDIUSB device control
- FortySevenEffects / Arduino MIDI Library
- can read all MIDI channels, supports callbacks
and multiple MIDI interfaces, for mergers/splitters applications
depends on lathoub / Arduino-USBMIDI, which in turn
depends on Arduino MIDIUSB, based on PluggableUSB.
- MIDIUSB2 adds callback support to MIDIUSB
Arduino USB connections
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