Serial Port Complete - Latest Microcontroller projects

Using .NET’s SerialPort Class

The StreamReader class provides several methods for reading text from a Seri-

alPort object.

StreamReader’s Read method can read a single character into an Integer or one

or more characters into a Char array. The method returns when at least one

character has been received:

 ' Read a character.

Dim receivedData1 As Integer

receivedData1 = streamReader1.Read

Console.WriteLine(Chr(receivedData1))

' Read two characters into an array.

Dim receivedData2(1) As Char

Dim count as Integer

count = streamReader1.Read(receivedData2, 0, 2)

Console.WriteLine(count & " characters received: ")

Console.WriteLine(receivedData2)

 // Read a character.

int receivedData1;

receivedData1 = streamReader1.Read();

Console.WriteLine(Strings.ChrW(receivedData1));

// Read two characters into an array.

Char[] receivedData2 = new Char[2];

int count;

count = streamReader1.Read(receivedData2, 0, 2);

Console.WriteLine(count + " characters received: ");

Console.WriteLine(receivedData2);

ReadBlock is a blocking version of the Read method and stores received data in

a Char array. Unlike Read, ReadBlock waits for all of the requested characters to

arrive or a timeout.