Sending “ENTER” key through serial port

Question

Hi I want to send some command to my device which is connected via serial port. How to send it?

For example i found this on google search but for me it\'s useless.

Answer 1

To send the enter key, you would have to use SerialPort.NewLine Property - A value that represents the end of a line

_serialPort = new SerialPort();
// ... this COM port parameters
_serialPort.NewLine = "\r"; // "\r" - CR (0x0D); "\r\n" - CRLF (0x0D 0x0A)
try
{
    _serialPort.Open();
}
catch (Exception ex)
{
  Console.Write(ex.Message);
  return;
}
_serialPort.WriteLine("Send string"); // Writes `Send string` string and the `NewLine` value to serial port
 // or
_serialPort.WriteLine((char)2 + "VWD:040" + (char)3); // Writes `VWD:040` string and the `NewLine` value to serial port

For a full example of working with serial port, see here.