CH9350 HID to UART Converter Module

The CH9350 HID to UART Converter Module is a compact SMD chip-based adapter that bridges USB HID devices — including keyboards, mice, and barcode scanners — to a standard UART serial interface. Whether you're integrating USB input devices into an embedded system, microcontroller project, or industrial automation setup, this module offers a reliable, plug-and-play conversion solution.

Key Features

Universal HID Compatibility: Works seamlessly with USB keyboards, mice, and barcode scanners, converting their HID data output to a readable UART serial stream.
CH9350 Chip: Built around the dedicated CH9350 IC, purpose-designed for USB HID to UART conversion with stable, low-latency data transmission.
SMD Form Factor: Surface-mount design makes it easy to integrate directly onto custom PCBs or use as a standalone module in development projects.
Broad Device Support: Compatible with standard USB HID keyboards and mice, barcode/QR code scanners, and other USB HID-class peripherals.
Simple Integration: No complex drivers required — connect your USB HID device on one side and read serial data on the other, making firmware and software integration straightforward.
Flexible Quantity Options: Available in 1pc, 5pcs, or 10pcs to suit prototyping or production needs.

Specifications

Model: CH9350
Interface Input: USB HID (Keyboard, Mouse, Barcode Scanner)
Interface Output: UART (Serial Port)
Package Type: SMD
Color Option: CH9350 (1 option)
Available Quantities: 1pcs / 5pcs / 10pcs

What's in the Box?

CH9350 HID to UART Converter Module(s) (SMD) — quantity per selected option

Who Is This For?

This module is ideal for electronics engineers, hobbyists, and developers working on embedded systems, IoT devices, industrial control systems, or any project that requires reading USB HID device input through a UART serial interface. It's a go-to component for Raspberry Pi, Arduino, STM32, and similar microcontroller platforms.

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Frequently Asked Questions

Q: What does the CH9350 HID to UART Converter Module do?

A: The CH9350 module converts USB HID device data — from keyboards, mice, and barcode scanners — into a UART serial output signal. This allows microcontrollers and embedded systems without native USB host capability to read input from standard USB HID devices over a simple serial interface.

Q: Which USB devices are compatible with the CH9350 HID UART Converter?

A: The CH9350 is compatible with standard USB HID-class devices, including USB keyboards, USB mice, and USB barcode or QR code scanners. Any device that communicates using the standard USB HID protocol should work with this converter module.

Q: How many units can I order, and what form factor does the module come in?

A: The CH9350 HID to UART Converter Module is available in quantities of 1pc, 5pcs, or 10pcs to suit both prototyping and small production runs. The module comes in an SMD (Surface-Mount Device) form factor, making it suitable for direct PCB integration or use with an appropriate breakout adapter.

Q: Do I need special drivers to use the CH9350 converter module?

A: In most cases, no special drivers are needed. The CH9350 handles the USB HID protocol internally and outputs clean serial UART data, so your microcontroller or development board only needs to read standard serial communication — greatly simplifying firmware development.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.