Pololu Wixel - Manual (Page 29)

PuTTY is a free Windows terminal program that can send and receive bytes on a
serial port.
If you need to send and receive non-ASCII bytes, you can use the Pololu Serial Transmitter Utility for Windows
[http://www.pololu.com/docs/0J23] or Br@y Terminal.
6.c. Writing PC Software to Use a Serial Port
You can write your own computer program that communicates with a serial port. The freely available Microsoft .NET
framework contains a
SerialPort [http://msdn.microsoft.com/en-us/library/system.io.ports.serialport.aspx] class that makes it
easy to read and write bytes from a serial port. Here is some example C# .NET code that uses a serial port:
// Choose the port name and the baud rate.
System.IO.Ports.SerialPort port = new System.IO.Ports.SerialPort("COM4", 115200);
// Connect to the port.
port.Open();
// Transmit two bytes on the TX line: 1, 2
port.Write(new byte[]{1, 2}, 0, 2);
// Wait for a byte to be received on the RX line.
int response = port.ReadByte();
// Show the user what byte was received.
MessageBox.Show("Received byte: " + response);
// Disconnect from the port so that other programs can use it.
port.Close();
Pololu Wixel User's Guide © 2001–2014 Pololu Corporation
6. Using a Virtual COM Port Page 29 of 64