Send Hex data to Serial Port :-)

[kpax1684]

Hello C# Guro,


Im am new the C# and previously my world is in C++ and C, I have created a lot of program in C++ and now want to start the new phase of my programming career.

Is it possible to send a data in Serial Port using C#

Lets say i want the sex the 0x5A or 0x2B in the serial port..

How can i do that in C #?



Thanks.
Mico

[RaleTheBlade]

You want to send sex to the serial port?

Working with serial ports in C# is a breeze...

        using (SerialPort port = new SerialPort("COM1", 9600, Parity.None, 8))
        {
            byte[] bytesToSend = new byte[2] { 0x5A, 0x2B };

            port.Open();
            port.Write(bytesToSend, 0, 2);
        }

It doesn't get much easier.

[kpax1684]

Thank you very much for this one,.. I will try this and give a feedback once it works...

[kpax1684]

Hello, I tried already the function but It didn't work

Actually what I want to do is to send a trigger character to A

barcode reader.. the the trigger for the barcode reader is 0x2B.


But this wont work...,


Is there any trick that might work on my problem..?

[RaleTheBlade]

Just adjust the byte[] so it only contains 1 hex value and then tell the SerialPort.Write method to send 1 character:

using (SerialPort port = new SerialPort("COM1", 9600, Parity.None, 8))
{
   byte[] bytesToSend = new byte[1] { 0x2B };

   port.Open();
   port.Write(bytesToSend, 0, 1);
}

[BioPhysEngr]

Yeah, using the serial port in C# is very convenient. From experience in debugging this sort of thing, you can test just the hardware by using HyperTerminal (usually comes Standard on Windows; Start > Programs > Accessories > Comunication) which will let you write text directly to the serial port. 0x2B is + in ASCII (link).