Automatically detect or manually set the COM port your host computer uses to communicate with the hardware board.
This parameter appears when the Hardware board parameter is
LEGO MINDSTORMS NXT,
Do not connect Arduino® Uno and Arduino Mega 2560 to a RS-232 serial interface, commonly found on computers and equipment. RS-232 interfaces can use voltages greater than 5 Volts, which can damage your Arduino hardware.
Let the software determine which COM Port your host computer uses.
Select this option to display the COM port number and Bootloader COM port parameter.
Specify the port on the computer that connects the Arduino hardware to the computer. To configure the COM port settings manually, see Configure Host and Bootloader COM Port Manually.
Specify the port on the computer that connects the Arduino bootloader to the computer. This parameter appears only when you set
the Set host COM port parameter as
Manually. To configure the bootloader COM port
settings, see Configure Host and Bootloader COM Port Manually.