Passing byte value throgh serialport

Question

0.00/5 (No votes)

See more:

I'm trying to send numbers over the serial port as bytes, not strings.
What I mean is if I want to send a 120, that should be 1 byte, not a 2
followed by a 2 and a 0.How it possible?

Posted 27-Aug-14 1:35am

Member 10994712

Updated 27-Aug-14 1:43am

v2

Add a Solution

Comments

[no name] 27-Aug-14 7:46am

Maybe you should listen to what you have already been told and go read the documentation for the device you are trying to communicate with and find out the proper way to send data to it.

Member 10994712 27-Aug-14 7:50am

I tried a code. But I didnt get the solution byte b = byte.Parse(textBox1.Text); serialPort1.Write(new byte[] {b }, 0, 1);

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Leo Chapiro · Answer 1 · 2014-08-27T01:46:00

If you use SerialPort class from System.IO.Ports: http://msdn.microsoft.com/de-de/library/ms143551%28v=vs.100%29.aspx[^]

C#

public void Write(
    byte[] buffer,
    int offset,
    int count
)

CSS

buffer
    Type: System.Byte[]
    The byte array that contains the data to write to the port.

offset
    Type: System.Int32
    The zero-based byte offset in the buffer parameter at which to begin copying bytes to the port.

count
    Type: System.Int32
    The number of bytes to write.