private static String GetAsString(contactState state)
{
switch (state)
{
case contactState.active:
return("Active");
case contactState.terminated:
return("Terminated");
default:
return("Unknown");
}
}
static void Main(string[] args)
{
// say hello
Console.WriteLine(info);
Console.WriteLine(intro);
Console.WriteLine(hint, "your serial port");
Console.WriteLine(disclaimer);
Console.WriteLine();
// init serial port
port = new SerialPort();
port.WriteTimeout = 100;
port.ReadTimeout = 100;
// Ask user and try to open port
while (true)
{
try
{
port.PortName = AskPortName();
port.Open();
break;
}
catch (Exception e)
{
Console.WriteLine("Error opening serial port: ");
Console.WriteLine(e.ToString());
}
}
// do the magic
while (true)
{
// perform the actual continuity test
try
{
port.WriteLine("42 ");
statistics[(int)contactState.UGLY]++;
try
{
string readstring = port.ReadLine();
if (readstring == "42 ")
{
// entire message received - good contact
state = contactState.GOOD;
statistics[(int)contactState.GOOD]++;
}
else
{
// something else received - bad contact
state = contactState.BAD;
statistics[(int)contactState.BAD]++;
}
}
catch (TimeoutException)
{
// nothing received - no contact
state = contactState.NONE;
statistics[(int)contactState.NONE]++;
}
}
catch
{
// an error occurred, e.g. USB com adapter disconnected
state = contactState.ERROR;
}
// print new state to console
if (state != lastState || statistics[(int)contactState.UGLY] % 100 == 0)
{
switch (state)
{
case contactState.GOOD:
Console.BackgroundColor = ConsoleColor.White;
Console.ForegroundColor = ConsoleColor.Black;
ConsoleClear();
Console.WriteLine("GOOD CONTACT :)");
break;
case contactState.BAD:
Console.BackgroundColor = ConsoleColor.Red;
Console.ForegroundColor = ConsoleColor.Black;
ConsoleClear();
Console.WriteLine("BAD CONTACT :/");
break;
case contactState.NONE:
Console.BackgroundColor = ConsoleColor.Black;
Console.ForegroundColor = ConsoleColor.White;
ConsoleClear();
Console.WriteLine("NO CONTACT :(");
break;
default:
Console.BackgroundColor = ConsoleColor.DarkYellow;
Console.ForegroundColor = ConsoleColor.Black;
ConsoleClear();
Console.WriteLine("!!! COM PORT ERROR !!!");
return;
}
lastState = state;
}
}
}
