![]() ![]() Even when you turn off the device, the COM port that is assigned to the device remains reserved for it. Here are a few examples of such devices: USB modems, cell phones, RFID readers, card readers, and so on.Įvery time Windows register such a device with a new ID, it gives that device a new COM port (COM2, COM3, COM4, etc.). ![]() Such ports are created when using USB-to-UART adapter, most notably used by FTDI and Croduino. However, the COM port does not necessarily refer to physical ports, but also virtual. Sometimes computers come with one or two physical COM ports (RS-232), while today's models don't have them ususally. ![]() COM port (Communication port) is the name for the port serial interface that can be found in a common computer(IBM compatible). ![]()
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March 2023
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