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CH343 is a USB bus adapter chip, realizes USB to high-speed asynchronous serial port, and supports up to 115200bps communication Automatic identification and dynamic self-adaptation of baud rate, providing common MODEM contact signals for expanding asynchronous serial ports of computers, or feature USB bus for the common serial device or MCU.
For most of the PC, the driver for CH343 is CDC by default, if you need to use VCP driver, please download the driver and install munually.
The CH343 USB UART board use software flow control by default, if you want to use hardware flow control, connect CFG to EN for CDC mode, set in SSCOM software for VCP mode.
To work with Raspberry Pi, it is driver-free, just connect and check with the following command:
ls /dev/tty*
The port should be named as ttyACM0, user can use the minicom tool to test.
sudo apt-get install minicom -y minicom -D /dev/ttyACM0
To use with MacOS, please download the driver and follow the guide
To use with Android device, please donwnload the APP and test.