An open source cross-platform USB stack for embedded system

An FPGA-based USB 1.1 (full-speed) device core to implement USB-serial, USB-camera, USB-audio, USB-hid, etc. It requires only 3 FPGA common IOs rather than additional chips. 基于FPGA的USB 1.1 (full-speed) device端控制器，可实现USB串口、USB摄像头、USB音频、U盘、USB键盘等设备，只需要3个FPGA普通IO，而不需要额外的接口芯片。

A Rust library to run a USB/IP server

USB to 3 Port Serial (UART) adapter firmware for STM32 Blue Pill.

Local PTY, USB and Bluetooth serial ports, SSH and Telnet terminal client for Android. Xwayland support (in dev only).

Highly flexible Composite USB Device Library

Single/Multi-channel Full Speed USB interface for FPGA and ASIC designs

USB host library 2.0 for Zero/M0/SAMD

nRF52 custom RF mesh sensors and dongle firmware using nRF SDK

Basic USB-CDC device core (Verilog)

STM32F103 USB CDC CMSIS

Anotter USB temperature logger that can record up to four channels with thermocouple or NTCs connected via CDC directly or SCPI to USB.

DMA-accelerated multi-UART USB CDC for STM32F072 microcontroller

Using the native USB interface of ESP32 S2/S3

USB serial device (CDC-ACM)

USB -> AXI Debug Bridge

USB to RS-485 (CDBUS) Converter

Prototype USB devices as ordinary Linux programs: HID, CDC serial, audio and displays over USB/IP

ESP32-C3 act as USB to serial UART interface like FT232R or CP210x

STM32G474 USB CDC example implementation, combined with Jan Breuer's SCPI parser library v2