Depending on your computer, the COM port may show up as a different number. The CH340 should show up as /dev/cu.wchusbserial*****. Open the Terminal by heading to Applications > Utilities > Terminal if the program is not open yet.

# is the COM port number you are going to use in Arduino IDE. The CH340 should show up as USB-SERIAL CH340 (COM#).

This driver is installed on my own PC, but I can't find a way to install in on my brother Windows 10 PC. Since we are all confined ( Covid-19), I can't go to his place to help him. This driver is used as a serial port over a USB port. After opening the device manager, you will need to open the Ports (COM & LPT) tree. I need to install (remotely) a driver 'USB-SERIAL CH340' to allow an Arduino board to communicate with a PC. You can click the Start and type 'device manager' to quickly search for the application. To verify that your driver is working, you can open the 'device manager'. The solution was as simple as uninstalling the old driver and installing the most recent version. You can find the latest version of their drivers Here.ĭepending on the Operating System you are using, the appropriate driver must be installed. We have experienced situations where both CP2102 and CH340G devices have not functioned or recognized as expected. Download CH340 Check whether the driver is running successfully Download serial port assistant. However, You may need to install drivers the first time you connect the chip to your computer's USB port or when there are operating system updates. It is used by a number of Arduino compatible boards to provide USB connectivity. The driver should automatically install on most operating systems. The CH340 chip converts USB data for a serial UART and vice versa.

Install ch340 driver