CH9329 CH340 UART TTL to USB HID Keyboard Mouse Module
CH9329 CH340 UART TTL to USB HID Keyboard Mouse Module
CH9329 + CH340 UART TTL to USB HID Full Keyboard & Mouse Module
Take your hardware projects and automation setups to the next level with this CH9329 + CH340 UART TTL to USB HID Connecting Wire Module. Bridging a TTL serial interface to a full USB HID device — supporting keyboard and mouse emulation — this compact dual-chip module is a must-have for developers, makers, and electronics enthusiasts working on microcontroller projects, automation tools, and custom input device builds.
Key Features
- Dual-Chip Design: Combines the CH9329 HID controller and CH340 USB-to-UART bridge for seamless TTL-to-USB HID conversion in a single, tidy module.
- Full HID Support: Emulates a full USB keyboard and mouse — no additional drivers required on the host system (drive-free plug-and-play).
- Multiple Operating Modes: Supports multiple chip operating modes to suit a wide range of application requirements and project configurations.
- Flexible Serial Communication: Multiple serial communication modes with flexible switching, making integration with MCUs, Raspberry Pi, Arduino, and similar platforms straightforward.
- Dual Male Connector: Comes with a dual-male connector configuration for reliable, stable connections in your build.
- Compact & Reliable: Low-profile black design fits neatly into enclosures, breadboards, or prototyping setups without bulk.
- Broad Compatibility: Works with virtually any host computer or device with a standard USB port — Windows, macOS, Linux, and more.
Technical Specifications
- Chips: CH9329 (USB HID) + CH340 (UART-to-USB)
- Interface: TTL Serial (UART) input → USB HID output
- HID Emulation: Full keyboard & mouse (drive-free)
- Color: Black
- Connector Type: Dual Male
- Operating Modes: Multiple (configurable)
- Serial Modes: Multiple, flexible switching
Who Is This For?
This module is ideal for electronics hobbyists, embedded systems developers, automation engineers, and hardware hackers who need to send USB keyboard/mouse commands from a microcontroller or serial device. Whether you're building a custom macro pad, automating UI interactions, or developing a hardware security testing device, this module delivers the flexibility and reliability you need.
Reference
For best practices in electronics prototyping and hardware safety, visit the U.S. Consumer Product Safety Commission (CPSC) for guidance on safe use of electronic components.
Frequently Asked Questions
Q: What does the CH9329 + CH340 UART TTL to USB HID module do?
A: This module converts TTL serial (UART) signals from a microcontroller or serial device into USB HID commands, enabling your project to emulate a full USB keyboard and mouse on any host computer — with no drivers required. The CH9329 handles the HID conversion while the CH340 provides the reliable UART-to-USB bridge.
Q: Is this module compatible with Arduino, Raspberry Pi, or other microcontrollers?
A: Yes. The module communicates via standard TTL UART, making it broadly compatible with Arduino, Raspberry Pi, ESP32, STM32, and virtually any microcontroller or single-board computer with a serial TX/RX interface. Simply connect TX/RX lines and power, then send serial commands to control the HID output.
Q: Do I need to install drivers to use this USB HID module?
A: No driver installation is needed on the host computer. The module presents itself as a standard USB HID keyboard and mouse device, which is natively supported by Windows, macOS, and Linux operating systems right out of the box.
Q: What are the different operating modes supported by this module?
A: The CH9329 + CH340 module supports multiple chip operating modes and serial communication modes, allowing flexible switching to match the requirements of different application scenarios — from simple keyboard emulation to more complex combined keyboard/mouse HID device configurations.