This dialog is opened by selecting the Edit | Preferences... action from the Serial Monitor window.
The Name control in the Serial Port group box of this dialog displays the list of all available serial ports. Upon selection of a port from this list the other controls display all the information available for this port: description, manufacturer, serial number, system location, vendor and product identifiers.
The controls in the Parameters group box allow to configure the connection to the selected serial port. The following parameters can be customized: Baud Rate, Data bits, Parity, Stop bits and Flow control.
The serial monitor window can also be used in order to write data to a serial port, by placing the cursor inside it and entering the text from the keyboard. If the Local echo box from the Options control group is checked each character typed and sent to the serial port is also printed in the terminal window. This is the default operating mode.
If the Add Time Stamp box from the Options control group is checked, the time information using the format string "hh:mm:ss.zzz" is prepended to each data line read from the serial port.
The string specified in the Separator list box is also inserted between the time stamp and the data line read from the serial port. This string is automatically set as the default column separator for the ASCII import dialog.