Reading from and Sending data to Serial port

Question

I\'m trying to do a serial port communication to send and receive data. Here is the scenerio:

I connect to a serial port and start my device. When it\'s counting down to

Answer 1

The .NET framework even has a proper SerialPort class, which will be just fine for your application.

Answer 2

There's a detailed guide here here which covers good practise in using Serial Ports in C#.