Sure! I also had an urge to learn how to use Visual Basic with Arduino.
Look at this:
I wrote this with visual basic. You first drag the "SerialPort" object from the toolbox. Put this in the very beginning of the code:
Imports System
Imports System.IO.Ports
Imports System.Threading
Then in Public Class Form 1 insert the following code:
Dim WithEvents Arduinoport As SerialPort = New _
System.IO.Ports.SerialPort("COM5", _
9600, _
Parity.None, _
8, _
StopBits.One)
replace "COM5" with your desired port, 9600 with the desired baud rate.
Then, to send something to the serial port, use the following line:
Arduinoport.Write("the desired text")
good luck! Google is your friend.