CH34x

CH34x refers to a series of USB-to-serial bridge chips manufactured by WCH (XinGain Microelectronics). These chips are commonly used to provide a serial communication interface (UART) over a USB connection. The most prevalent models include the CH340 and CH341, each with variations supporting different serial interface standards. They are widely adopted in various electronic devices and development boards due to their low cost and broad compatibility.

These chips typically require minimal external components to function, making them an attractive solution for embedded systems and hobbyist projects. They emulate a virtual COM port on a host computer, allowing standard serial communication software to interact with the connected device. Drivers are available for multiple operating systems, including Windows, macOS, and Linux, facilitating their integration into diverse development environments. The CH34x series is known for its affordability, making it a popular choice for mass-produced consumer electronics and prototyping. They are often found on USB-to-TTL serial adapters, Arduino clones, and other microcontroller development boards.