This driver is for MacOS Sierra/High Sierra. If the device is not recognized, download the Linux CH340/CH341 driver. The drivers are integrated into different Linux distributions.
CH340G DRIVER FOR MAC HIGH SIERRA INSTALL
WINDOWS 32/64bit (version: 3.4 – 7) Ch340g Driver For Macĭrivers in the Windows OS are missing, you need to download and install them. Once the unzip of the package has been executed, it is possible to proceed with the update of the driver for the device CH340/CH341 and equivalent (download driver only for your OS): The driver must be downloaded from the official (Chinese) website.
No panic, driver installation is very easy! The board uses same type of Mini-B USB connector, same side connectors and 6-pin SPI connector, as well as the Atmel ATmega328P microcontroller in the 32-TQFP package. The Nano CH340 R3 board is similar to the genunine Arduino Nano board, described on the original Arduino website here. You might have discovered that your Arduino IDE can no longer find a serial port in El Capitan. NodeMCU 0.9, WeMos D1 Mini and a lot of Arduino clones use these chips.
Many operating systems do not recognize these chip natively because they lack the drivers and consequently we have an error due to lack of drivers. The CH340/CH341 chip is used by a number of Arduino compatible cards to provide USB connectivity. Clone Arduino & driver chip CH340, CH340G, CH341
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