![]() ![]() If no name appears, or if a device with an error symbol appears, you probably need to install a driver. ![]() The name with which it appears in the device manager strictly depends on the type of machine. Depending on the type of controller board this port may appear in the computer’s device manager with the name “USB-SERIAL CH340” or “USB Serial Device” or something else. Is it necessary that your Windows OS recognize your engraver as a serial COM port once connected. Step 1: ensure COM port is recognized by the OS ![]()
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