Catalina and Mojave drivers are notarized. Legacy drivers (signed) for OS X 10.13, 10.12. 10.11, 10.10/10.9, 10.8, 10.7, 10.6, 10.5 (PowerPC) are also available. I purchased your driver and I am happy to report that it solves both issues I saw with the other drivers. I recently upgraded my MacBook Pro to Mojave. Now I'm not able to connect to my Arduino board with ch340g usb-to-serial chip. It is a Arduino board with AtMega 328 and ESP8266 integrated. I downloaded the drivers from the Chinese website for the ch340 and also removed old installations, like some tutorials tell me. CH340 Driver for macOS Mojave 10.14 or later Download and install the driver if you can’t find any serial port to connect to on Snapmaker Luban. CH340 Driver for Windows Download and install the driver if you can’t find any serial port to connect to on Snapmaker Luban.
CH340 is a USB converter chip, which converts USB to serial UART interface or to printer interface.In UART mode, CH340 provides common MODEM interface signals, to expand UART interface of computer or upgrade common serial communication devices to USB directly. For more information about converting USB to printer interface, please refer to the datasheet CH340DS2.
Model differences:CH340C, CH340N, CH340K, CH340E and CH340B integrate 12MHz clock, no external crystal required.CH340B integrates EEPROM used to configure the serial number, etc. Some functions can be customized.The CH340K has three diodes built in to reduce current flow backwards between the I/O pins of the MCU.The backplane of the CH340K is 0# pin GND, which is an optional connection; the 3# pin GND is the necessary connection.CH340R provides reverse polarity TXD and MODEM interface signals. (Discontinued).
Development InformationDatasheet: CH340DS1.PDFDrivers:1.CH341SER.EXE(Windows driver, supports WIN10/WIN8/WIN7/XP etc.)2.CH341SER_ANDROID.ZIP(Android application)3.CH341SER_LINUX.ZIP(Linux driver)4.CH341SER_MAC.ZIP(MAC OS driver)Schematic/PCB: CH340PCB.ZIP
file name | file content |
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CH341SER.EXE | CH340/CH341 USB to serial port Windows driver, supports 32/64-bit Windows 10/8.1/8/7/VISTA/XP, Server 2016/2012/2008/2003, 2000/ME/98,Microsoft WHQL Certified, supports USB to 3 and 9 wire serial ports. Used to distribute to the end user with the product. |
CH341DS1.PDF | CH341 datasheet, USB bus converter chip with multiple communication interfaces, such as USB to serial port/parallel port/printer port/I2C interface etc. Drivers support for Windows/Linux/Android/Mac, etc. The datasheet is the description of USB to serial port and printer port. |
CH341SER_ANDROID.ZIP | CH340/CH341 USB to serial port Android free drive application library, for Android OS 3.1 and above version which supports USB Host mode already, no need to load Android kernel driver, no root privileges. Contains apk, lib library file (Java Driver), App Demo Example (USB to UART Demo SDK). |