CH9350 HID to UART Converter Module

The CH9350 HID to UART Converter Module is a compact, high-performance interface chip that bridges USB HID devices — including keyboards, mice, and barcode scanners — directly to a standard UART/serial port. Whether you're building an embedded system, developing an IoT project, or integrating USB input peripherals into a microcontroller-based design, the CH9350 delivers reliable, low-latency data conversion in a space-saving SMD package.

Key Features

Universal HID Support: Compatible with USB keyboards, mice, and barcode scanners — easily read HID input data over a simple UART interface.
Plug-and-Play Operation: No complex driver programming required; the CH9350 handles USB HID protocol parsing automatically and outputs clean serial data.
SMD Package: Surface-mount design is ideal for custom PCB integration in compact embedded or industrial applications.
Flexible Quantities: Available in 1-piece, 5-piece, and 10-piece options to suit prototyping, small-batch production, or larger development runs.
Broad Application: Perfect for computer peripherals, industrial automation, POS systems, access control, data collection terminals, and DIY electronics projects.
Condition: Brand new, factory fresh modules.

Specifications

Model	CH9350
Interface	USB HID (Host) to UART (Serial)
Supported Devices	USB Keyboard, Mouse, Barcode Scanner
Package Type	SMD (Surface Mount Device)
Application	Computer / Embedded Systems / IoT
Customization	Yes
Condition	New
Quantity Options	1 pc, 5 pcs, 10 pcs

What's in the Box

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

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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 signals — from keyboards, mice, or barcode scanners — into standard UART/serial data. This allows microcontrollers and embedded systems without native USB host support to easily read input from common USB peripherals via a simple serial interface.

Q: Which USB devices are compatible with the CH9350 module?

A: The CH9350 is compatible with a wide range of standard USB HID devices including USB keyboards, USB mice, and USB barcode scanners. It supports full USB HID protocol parsing, so no additional USB host stack is required on your microcontroller.

Q: Is the CH9350 module suitable for beginners and prototyping?

A: Yes! The CH9350 is designed for straightforward integration. Its automatic HID-to-UART conversion means developers and hobbyists can connect USB input devices to UART-based microcontrollers (such as Arduino, STM32, ESP32, and others) without writing complex USB host code — making it great for prototyping and production alike.

Q: What quantity options are available?

A: The CH9350 module is available in 1-piece, 5-piece, and 10-piece bundles, making it convenient for individual projects, small-batch development, or larger production runs. Simply select your preferred quantity when adding to cart.

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.