Windows 11 | Ch340 Drivers

You are now ready to communicate with your microcontroller!

Unlike FTDI chips (which are more expensive but have native Windows certification) or CP2102 devices, the CH340 uses a vendor-specific driver that Microsoft does not automatically distribute through Windows Update. The driver files ( ch341ser.sys , ser2pl64.sys in older versions) lack official Microsoft Hardware Quality Labs (WHQL) signature in some legacy releases, though newer versions are now signed. ch340 drivers windows 11

Visit the WCH Download Page for the CH341SER.EXE installer. You are now ready to communicate with your microcontroller