private static void Main(string[] args)
{
var comPortName = "COM1";
// configure the data to write, this can be a string, a byte array, or a char array
var dataToWrite = "DataToWrite";
var dis = new CompositeDisposable();
// Setup the start of message and end of message
var startChar = (0x21).AsObservable();
var endChar = (0x0a).AsObservable();
// Create a disposable for each COM port to allow automatic disposal upon loss of COM port
var comdis = new CompositeDisposable();
// Subscribe to com ports available
SerialPortRx.PortNames().Do(x => {
if (comdis?.Count == 0 && x.Contains(comPortName))
{
// Create a port
var port = new SerialPortRx(comPortName, 9600);
port.AddTo(comdis);
// Subscribe to Exceptions from port
port.ErrorReceived.Subscribe(Console.WriteLine).AddTo(comdis);
port.IsOpenObservable.Subscribe(x => Console.WriteLine($"Port {comPortName} is {(x ? "Open" : "Closed")}")).AddTo(comdis);
// Subscribe to the Data Received
port.DataReceived.BufferUntil(startChar, endChar, 100).Subscribe(data => {
Console.WriteLine(data);
}).AddTo(comdis);
// Subscribe to the Is Open @500ms intervals and write to com port
port.WhileIsOpen(TimeSpan.FromMilliseconds(500)).Subscribe(x => {
port.Write(dataToWrite);
}).AddTo(comdis);
// Open the Com Port after subscriptions created
port.Open();
}
else
{
comdis.Dispose();
Console.WriteLine($"Port {comPortName} Disposed");
comdis = new CompositeDisposable();
}
}).ForEach().Subscribe(name => {
// Show available ports
Console.WriteLine(name);
}).AddTo(dis);
Console.ReadLine();
// Cleanup ports
comdis.Dispose();
dis.Dispose();
}
public Serial()
{
SerialPort = new SerialPortRx();
}