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The product is intended for specialists and requires qualified and authorized personnel. The product does not include assembly/use instructions . Putting the product into operation by unqualified persons leads to the loss of the warranty according to the Terms and Conditions on the site.
The specified technical parameters (current, power, etc.) represent maximum allowable values under ideal operating conditions. For safe use and optimal lifespan, it is recommended to operate the product continuously at no more than 50% of the specified maximum values.
UART TTL to USB HID converter, CH9329, 5V
Quickly transforms UART TTL signal into a USB HID device, automatically recognized by PC as keyboard, mouse or custom HID, ideal for embedded, automation and IoT projects. Operates at 3.3V or 5V, supports ASCII characters and multimedia commands, includes absolute or relative mouse mode, allows software configuration for baud rate, VID PID and working mode.
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The CH9329 programmer module transforms UART (TTL) serial communication into a fully functional USB HID device, recognized by any computer as a keyboard, mouse or custom HID device. It is ideal for embedded projects, automation applications, IoT devices or custom control interfaces, and provides a simple and efficient solution for transmitting commands to a computer via USB.
It is designed to work together with a USB-TTL module or any microcontroller or development board capable of serial communication, the CH9329 taking serial data and converting it according to the HID standard, with full support for ASCII characters, multimedia keys, absolute or relative mouse and custom data transmission.
ATTENTION! If the module is already powered via USB (from the PC) the +5V pin DO NOT CONNECT! The module is already powered from the computer! In most cases, connecting the GND and RX pins of the module to the microcontroller is sufficient.
The module allows configuration through the dedicated application (we provide a translated version of this application in the Download section). Attention, the firmware is in Chinese, which is why, even if the application is translated, once the IC is read, its information will appear in Chinese characters.
The converter can be used as a complete UART → USB HID converter (keyboard, mouse, custom device) and is automatically recognized by the PC without additional drivers.
Working mode, baud rate, VID, PID, timeouts, character filters, etc. can be configured through the software.
Supports advanced features such as multimedia keyboard, absolute/relative mouse.
It can be used as a Wake-on-USB device, providing the function of remotely waking up the computer.
On the module there is a series of 4 jumpers that can connect MODE0, MODE1, CFG0 and CFG1 to GND, for a hardware selection of the operating mode. Attention! The jumpers are NOT included in the package!
Specifications:
Supply voltage: 3.3V or 5V
IC: CH9329
Serial baud rate: 9600 bps (default), configurable
Supported modes: HID Keyboard, HID Mouse, Custom HID
Interface: UART TTL (RX/TX), USB
Transmission type: Full Speed USB 2.0
Dimensions: 42 x 15mm
IC pinout:
Jumpers:
| Label on the module | IC pin | Function |
|---|---|---|
| M0 | MODE0 | Operating mode selection (bit 0) |
| M1 | MODE1 | Operating mode selection (bit 1) |
| G0 | CFG0 | Enable configuration mode (config mode) |
| G1 | CFG1 | Enable EEPROM or extended configuration |
Jumpers short the pins to GND. Jumpers are not included.
Use:
For testing, an UNO R3 board can be used to send characters in keyboard mode directly to the PC.
Arduino code:
#include SoftwareSerial ch9329(10, 11); // RX, TX void setup() { ch9329.begin(9600); delay(2000); } void loop() { ch9329.println("HELLO"); delay(2000); } |
Connecting CH9329 to UNO R3:
| Pine CH9329 | Function | Arduino UNO pin | Observations |
|---|---|---|---|
| GND | Common table | GND | Mandatory – without common ground, serial signals will not work |
| TX | Data output from CH9329 | Pin 10 | Arduino read here (RX software) |
| RX | Data entry in CH9329 | Pin 11 | Arduino transmits here (software TX) |
| VCC | 5V power supply | DO NOT CONNECT! | The module is already powered via USB from the PC! |
In our example, the TX pin of the module can remain free, connecting GND and RX being sufficient.
Do not connect the 5V pin!
To work in our example, it is necessary to put a jumper on G0.
Warning! Using the programming software incorrectly may lead to module blockage.
Package Contents:
1x module
Does not include Jumpers
Produs destinat utilizarii in proiecte electronice, automatizari, prototipare, educatie si cercetare.
Produsul trebuie utilizat numai conform specificatiilor tehnice mentionate in descriere si/sau in documentatia produsului.
Avertismente generale de siguranta:
Nu utilizati produsul la tensiuni, curenti sau temperaturi peste valorile specificate.
Montajul si conectarea trebuie realizate de persoane cu cunostinte tehnice minime in domeniul electric/electronic.
Evitati scurtcircuitele, inversarea polaritatii si conectarea gresita a alimentarii.
Nu lasati produsul alimentat nesupravegheat in timpul testelor.
Produsul nu este jucarie si nu este destinat copiilor.
Pentru modulele electronice, se recomanda utilizarea in carcase, panouri sau montaje protejate, dupa caz.
Identificare produs:
Denumirea produsului, codul/SKU-ul si caracteristicile tehnice sunt mentionate in pagina produsului si/sau pe eticheta ambalajului.
Producator / Importator / Distribuitor:
Sigmanortec S.R.L.
Calea Bucuresti nr. 9, Targu Jiu, Gorj, Romania
E-mail: [email protected]
Website: www.sigmanortec.ro
Persoana responsabila in UE:
Sigmanortec S.R.L.
Calea Bucuresti nr. 9, Targu Jiu, Gorj, Romania
E-mail: [email protected]
Documentatie si siguranta:
Pentru informatii suplimentare, fise tehnice, declaratii de conformitate sau instructiuni, ne puteti contacta la [email protected].
