usb-relay

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Cross-platform project for controlling USB relay modules based on HID technology

Multi-platform library for USB relay devices management on Java

Hurra for the WCH platform — CH32H417 dual-core USB HID relay firmware

Alternative firmware for DCT Tech USB relay module, which switches the relay on when USB bus is active.

Controlling a USB to serial port relay board with Python

Модуль управления USB-реле для системы программирования PascalABC.NET

Integrate a HID USB relay in Home Assistant

GoLang implementation of usb-relay for control USB HID relay module.

Application to control USB relay switch

Windows 本地 USB 串口继电器控制工具，支持 Electron 桌面版与 Chromium Web Serial 浏览器版，基于 Vue 3 + TypeScript + Node SerialPort，已实机验证 CH340 + LCUS-1 单路 USB 继电器。

GURL — Grand Unified Relay Logic. One Python tool to control every relay: CH340, USB HID, Modbus, MQTT, HTTP, Sonoff, GPIO, Zigbee, Z-Wave, and Home Assistant.

USB relay to be controlled by serial for embedded computers.

Control mp709/RODOS-3 relay

Full-featured Windows control suite for the HW-34 / USB-RELAY04 4-channel USB relay board — Modern GUI, System Tray quick-toggle, and CLI. Python, CustomTkinter.

This package is designed to control a single-channel USB relay module (based on the CH340 USB-to-Serial converter chip) within a ROS environment.

Portable Windows app that controls a USB relay fan from HDD SMART temperature.

Cross-language USB relay toolkit for Windows (C# + Rust): HID control, blink/daemon modes, JSON CLI, and hardened CI-ready releases.

Relay switch for rqt_gui

Flash-ready images turning any ARM SBC (Armbian) or real Raspberry Pi 4/5 (official Raspberry Pi OS) into a Bitfocus Companion Satellite node, full Companion, or Buttons USB Relay — with an opt-in Companion Dashboard kiosk display