This is based on the 4U2SEE Indoor LED Displays . You can try get it from ebay for ~ $150.
The following is the code to send command and messages to the display using C#:
Serial Port Basics:
public void Init()
{
sp = new SerialPort();
sp.BaudRate = 19200;
sp.DataBits = 8;
}
Protocol:
String BeginCommand = "01-5A-30-30-02-41-42-06-1B-33-62-1C-";
String ColorCommand = mColor;
//colors = 30-37
String SizeCommand = "1A-30"; //30 is size param
String DisplayModeCommand = "0A-49-31"; //0A-49 is text moving -XX is display mode
String TextCommand = mCommandString;
String EndCommand = "03";
String FullCommand = BeginCommand + ColorCommand +SizeCommand+ DisplayModeCommand+TextCommand + EndCommand;
//String FullCommand = TestBegin;
//4A is First Letter
//03 is the last command
//37 is color
//33 is display mode
//construct full command
Sending HEX to serial port:
(HexEncoding is a class written by neilck and the code can be found here)
ByteArray = HexEncoding.GetBytes(FullCommand, out discarded);
BytestoString = HexEncoding.ToString(ByteArray);
sp.Open();
sp.Write(ByteArray, 0, ByteArray.Length);
sp.Close();
