The CH340 is a USB-to-serial chip used to establish a communication connection between a computer and a serial device. It was developed by the Chinese company Jiangsu Shuguang Microelectronics Co., LTD.
The CH340 chip provides a low-cost solution for converting a USB interface into a serial communication interface that can exchange data with a variety of serial devices, such as microcontrollers, sensors, printers, debugging tools, and more. It supports a variety of serial communication protocols, including RS232, RS485 and TTL level serial ports.
In terms of performance, the CH340 chip generally has reliable data transmission capabilities and performs well under normal use. Its communication speed can meet the requirements of a standard serial port, such as supporting a maximum baud rate of 115200bps, but the actual performance also depends on the quality of the communication between the computer and the serial device and the quality of the device driver.
However, it should be noted that the CH340 chip may require the installation of specific drivers in some operating systems to work properly, such as the CH340 driver in some versions of the Windows operating system. In most cases, drivers for the CH340 chip can be obtained from official websites or other reliable sources.
Overall, the CH340 chip performs well in terms of low cost, miniaturization and general serial communication requirements, and is widely used in various electronic devices and projects. However, for some applications with special or high-performance requirements, a higher-level chip or solution may need to be considered.
The CH340 is a USB-to-serial port chip used to connect a computer to an external serial port device.
It has good compatibility and stability, and is relatively low in price.
Therefore, it is widely used in various embedded systems, Arduino and other development boards and microcontroller projects. Although the performance of the CH340 driver may be slightly lower than that of other high-end chips, it can still provide reliable data transmission and stable performance for general serial communication tasks.
The CH340 is a USB bus conversion chip that implements USB-to-serial port or USB-to-print port.
In serial port mode, the CH340 provides common MODEM communication signals, which can be used to extend the asynchronous serial port for a computer or upgrade a common serial device to the USB bus.