CH9329 UART TTL to USB HID Module – Driver-Free Keyboard & Mouse

CH9329 UART/TTL Serial to USB HID Converter Module

The CH9329 Module is a compact, powerful chip-based solution that converts UART/TTL serial port signals into standard USB HID (Human Interface Device) output — enabling fully driver-free keyboard and mouse emulation on any host computer. Whether you're building game automation tools, embedded control systems, or custom HID peripherals, this module streamlines your development workflow with plug-and-play USB compatibility.

Key Features

• Driver-Free Operation: Recognized instantly as a standard USB HID device — no drivers needed on Windows, macOS, or Linux.
• UART/TTL Serial Interface: Simple serial communication makes it easy to integrate with microcontrollers (Arduino, STM32, ESP32, Raspberry Pi, etc.).
• Keyboard & Mouse Emulation: Send keystrokes, mouse movements, and click commands via serial commands — ideal for game development, test automation, and custom input devices.
• Compact SMD Package: Small form factor fits neatly into embedded projects and enclosures.
• Broad Compatibility: Works with any USB host that supports standard HID — no custom software or kernel modules required.
• Customizable: Fully configurable for custom HID descriptors and application-specific use cases.
• New Condition: Shipped as a brand-new unit, ready for immediate integration.

Typical Use Cases

• Game bot and automation development
• Embedded keyboard/mouse simulation for testing
• Custom HID peripheral prototyping
• Industrial control input emulation
• Microcontroller-to-PC HID bridging

Specifications

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Frequently Asked Questions

Q: Does the CH9329 module require any drivers to work with my computer?

A: No — the CH9329 module operates as a standard USB HID device and is fully driver-free. It is recognized automatically by Windows, macOS, and Linux operating systems without installing any additional software.

Q: What microcontrollers are compatible with the CH9329 UART/TTL to USB HID module?

A: The module works with any microcontroller that supports UART/TTL serial communication, including popular platforms such as Arduino, STM32, ESP32, and Raspberry Pi. Simply connect TX, RX, and GND to begin sending HID commands.

Q: Can this module emulate both keyboard and mouse simultaneously?

A: Yes. The CH9329 chip supports concurrent keyboard and mouse HID emulation, allowing you to send keystroke and mouse movement/click commands from your microcontroller in the same session — perfect for game automation or custom input device projects.