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by: willie |
last post by:
Hi,
I'm writing a program which requires the use of three serial ports and
one parallel port. My application has a scanning devices on each port,
which I can access fine with pyserial. However, I'm unsure of how
exactly I should be designing the program, I thought I could use
threading to start class:
class scanner(Thread):
def __init__(self,port):
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by: agnivesh |
last post by:
Hi there,
I'm a beginner in C programming and want to learn how to write C (pure
C) code to access hardware ports (serial,parallel,usb etc.) under
windows environment ?
1. Please, suggest any online tutorials or free ebooks etc. for that.
2. Is it possible to do above tasks using MingW Developer Studio, GTK+
etc. ? I've just downloaded these tools and want to make sure before
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by: Al the programmer |
last post by:
I need to access the serial ports on my webserver from an asp.net page. I
have no problem accessing the serial ports from a windows form application,
but the code doesn't work in asp.net. I have been told it is not possible to
access the serial ports from asp.net.
The application is used to control custom hardware. The hardware is
connected to a PC through serial ports. Our customer wants to control the
hardware from a remote...
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by: David |
last post by:
I have written an application in VB.NET 2003 that uses the SAX serial
component for RS232 communications with hardware.
The program sets up 2 serial ports so that it can talk to 2 different
hardware devices simultaneaously.
When I run the program on a desktop running Windows 2000 it works fine. When
I run it on a Laptop using XP I start having problems.
It seems that when the ports are initiated, either one will work but not the
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by: henrycortezwu |
last post by:
Hi All,
I'm trying to connect to a virtual port (COM19, OUTGOING, "Bluetooth
Serial Port") using VS2005 System.IO.Ports.
When I ran the ff code below here's what happens.
1) VS2005 Compiles w/o errors
2) My Nokia 6600 prompted me the message "Accept Connection request
from DEMON?"
note: DEMON is my computers name.
3) Using my Nokia 6600, I hit the button that refers to the "Yes"
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by: Lee |
last post by:
I am getting this error trying to run a win forms .net app using the .net 2.0
serial port control. This occurs when the app tries to open the port. I knwo
this is some type of security access problem but I have no clue where to fix
it. Help....
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by: Stephan Rose |
last post by:
Anyone have any experience working with USB->Serial adapters??
Yes, some of us, like me, still need Serial ports!!! Drives me nuts
that it is almost impossible to still get a high end motherboard these
days that has a built in serial port...
I just found out yesterday though, using my serial boot loader for my
embedded work, that it didn't want to talk to my development board.
My boot loader is nothing more than small console C# app...
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by: joaquimfpinto |
last post by:
Dear All,
I made an app in c# that uses several serial ports.
For the serial ports I use a pnp Sunix board, some with 8 serial ports
other with 4 or even 2 serial ports.
Whenever I use the development computer I don't have ay problem with
my application.
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by: Mihai Popescu |
last post by:
I wrote a simple application in MFC that uses MSComm ActiveX Control for
serial communication. This app works just fine but I have to port it to
Pocket PC. So, I wrote another simple application in C# for Pocket PC
now using a System.IO.Ports.SerialPort object with the same
communication parameters as the former: 19200,n,8,1 and on COM4.
The problem is that the latter app generates an IO exception
System.IO.FileNotFoundException cause...
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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: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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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: 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: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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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: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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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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