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by: collinm |
last post by:
hi
i send a command to a led display, the led display is suppose to return
me some character
i write a string on a serial port
void ledDisplayExist()
{
char msg={'\0', '\0', '\0', '\0', '\0', '\1', 'Z', '0', '0',
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by: Darrell Wesley |
last post by:
Is there a good source of information on how to read a USB port, in
particular reading data from a BarCode reader?
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by: Tolgay Gül |
last post by:
I need some codes that able to send and read data by serialport in VB.Net
2005 beta 2. I wrote some codes and It can send data via serialport but It
cannot read what I send. I have looked up on internet and msdn and found
some codes and samples but they are also can't read serial port. . It was so
easy in VB 6.0 with mscomm object and oncommread events but now I don't
understand how it reads data from serialport. You can see the codes...
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by: Casey Bralla |
last post by:
I'd like to read ASCII data from a serial port, but (once again) I'm having
trouble getting started. (Can't seem to find the basic level of docs to
get going <sigh>)
I'd like to use only standard "built-in" modules if possible.
Could somebody offer a simple code-snippet to get me started reading from a
serial port?
Thanks!
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by: luca72 |
last post by:
Hello at all
sorry for my english but i'm Italian.
I use pyserial to communicate via rs232 with an extarnal device called
smartmouse.
I write the exact line that i want , but when i read i read only the
echo ond not the other bytes.
When i meke the same project with delphi i solve this problem with the
call of the sleep.
But in python it don't work.
Have you got some ideas for solve my problem?
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by: Dave Harry |
last post by:
I found the RS232 class from MS's 101 VB samples.
Writing to the port works fine. (I've got hyperterminal on the other comm
port and a crossover cable between COM1 and COM2)
The port is opened with:
Public switchcom As New Rs232
switchcom.Open(2, 57600, 8, Rs232.DataParity.Parity_None,
Rs232.DataStopBit.StopBit_1, 512)
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by: Jens |
last post by:
Hello,
I have been looking for some C-code which listens on a user-defined port
for incoming data traffic. When data is received, the data is written to a
file.
I found some C-code (server) that almost does the job. It listens on a
user-defined
port and responds to incoming data by writing how many times somebody
has tried to connect to the server.
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by: rowan |
last post by:
I'm writing a driver in Python for an old fashioned piece of serial
equipment. Currently I'm using the USPP serial module. From what I can
see all the serial modules seem to set the timeout when you open a
serial port. This is not what I want to do. I need to change the
timeout each time I do a "read" on the serial port, depending on
which part of the protocol I've got to. Sometimes a return character
is expected within half a second,...
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by: mmrasheed |
last post by:
Hi,
I am newbie in python. I am working on Telit GM862 GPS/GPRS module
which has python interpreter built in. But it seems this problem is
pretty much related to general python structure.
I need a promt/terminal when the device is connected to PC. If user
enters a command by serial port and press "Enter" then the data is
read by the device and work on the command. This is similar to
readline() function. Unfortunately there is no...
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by: ravimishra11 |
last post by:
Hi friends,
I have written code in asp.net to read or write string in com port(COM1).But when i run the program i am not getting any output .Below is my code .How can i check the string which i have send in com port is available in com port for read.
private SerialPort port = new SerialPort("COM1", 9600, Parity.None, 8, StopBits.One);
port.Open();
// port.Write("He");
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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