USB TO 4CH TLL
|Product model||Industrial Grade USB to TTL Converter|
|Communication Rate||1200bps ～ 460800bps|
|UART TTL Level||3.3V/5V (Adjustable)|
|Operating System||Mac OS, Linux, Windows 11 / 10 / 8.1 / 8 / 7, Android|
The CH344 chip provides 4 sets of asynchronous serial ports UART0/1/2/3. Each set of serial ports includes pins such as TXD, RXD, CTS, and RTS, enabling both 3-wire serial communication and 5-wire serial communication. Each asynchronous serial port supports hardware automatic flow control with CTSx and RTSx. You can configure them to enable or disable simultaneously using the CFG pin (default is disabled), or you can independently configure them using the VCP vendor driver demo.
How to use
The default driver of the computer is the CDC driver, which can be viewed through the device manager.
We default to software flow control, if you need to use CDC hardware flow you need to connect the board's CFG to EN (power on self-detection).
The VCP driver is a vendor driver and needs to be installed by yourself. It can be viewed through Device Manager after installation.
The default is software flow control, if you need to use VCP hardware flow, you can open it directly through the serial debugging assistant.
To work with Raspberry Pi, it is driver-free, just connect and check with the following command:
minicom -D /dev/ttyACM0
To use it with an Android device, please download the APP and test it.
- CH344 Datasheet
- SSCOM software
- CH343 VCP driver for Windows
- CH343 driver for MacOS
- MacOS guide
- UART APP in Android
Beware of knock-offs
Please note that we've found some poor copies of this item in the market. They are usually made of inferior materials and shipped without any testing.
You might be wondering if the one you're watching or you've purchased in other non-official stores is original, feel free to contact us.