Puerto Serial

Tutorial de funciones básicas de puerto serial

http://codesamplez.com/programming/serial-port-communication-c-sharp

http://codereview.stackexchange.com/questions/29807/better-approach-to-using-the-c-serialport-class

Importante para leer

http://www.codeproject.com/Articles/678025/Serial-Comms-in-Csharp-for-Beginners

https://msdn.microsoft.com/es-es/library/system.io.ports.serialport(v=vs.110).aspx (Clase de MSDN full del puerto serial)

Ver que SerialPort hereda de ComponentModel
https://msdn.microsoft.com/es-es/library/system.componentmodel.component(v=vs.110).aspx