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by: Chris |
last post by:
Here's the situation:
I work at a scientific institution and I have a portable electronic
device which is used to take measurements. The device produces a very
small amount of numerical data, about 10 to 15 numbers per
measurement. This operation is performed frequently and I would like
to implement an automatic solution that moves this data across a
windows network and into the fields of an Access database application.
The device...
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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: 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: 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.brown.0 |
last post by:
I'm trying to make a Java program access a parallel port. Java's comm
API does not provide me with the control I need. I need to be able to
write to the data and control pins and read the status pins. Any Java
people know a good solution? I'm trying to use JNI and create my own
library, but building the library gives me these errors:
ld: warning: cannot find entry symbol _start; defaulting to
0000000008048094
ParallelPort.o: In...
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by: Frank |
last post by:
Hello,
how to get information about all serial ports in the PC?
I use the following code, but i got only the data of the FIRST serial port.
All other serial port information are not available with this code sample:
ManagementObjectSearcher searcher = new ManagementObjectSearcher("Select *
from WIN32_SerialPort");
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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: shussai2 |
last post by:
Hi,
I am trying to access Serial Port in XP. I am using Dev-C++ IDE that
uses Mingw as a compiler. I just want to know how I can open up serial
port on COM1 and write some data. I have searched quite a bit over the
web and could not find anything useful. I don't want to use Visual C++
or Cygwin, linux, etc. If any of you guys have some little tid bit of
code that would be great to look at.
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by: Rob |
last post by:
Hi all,
I am fairly new to python, but not programming and embedded. I am
having an issue which I believe is related to the hardware, triggered
by the software read I am doing in pySerial. I am sending a short
message to a group of embedded boxes daisy chained via the serial port.
When I send a 'global' message, all the connected units should reply
with their Id and Ack in this format '0 Ack' To be certain that I
didn't miss a...
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by: terry |
last post by:
Hi,
I am trying to send a character to '/dev/ttyS0' and expect the same
character and upon receipt I want to send another character. I tired
with Pyserial but in vain.
Test Set up:
1. Send '%' to serial port and make sure it reached the serial port.
2. Once confirmed, send another character.
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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: 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: 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: 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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