Display Serial Port Data?
Nov 6, 2011I want a text box in my application that will display the data currently coming from the serial port,So if i will send ascii "hello" from another computer on my program it will diaplay "hello".
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Serial Port & How To Display Data In Textbox?
Dec 10, 2009I am new to VB2008 Express, I have been trying to get data from the Serial port, i have tried for days to get it working. I have read lots of articles but most seem to be for Console applications and I am using an Application. All I am trying to do is create a form with a Textbox and this should display the data received from the serial port.
The data i am trying to receive is "ABC" on Com1 Can anyone either send me a project, as I am sure its something to do with how i am configuring it, or if thats not possible, show me in code?
Continuously Receiving Data From Serial Port And Display In Textbox
Apr 28, 2012I ve been reading forums all over the net for 2 weeks and I failed to find solution for my problem. here is my problem;
I am able to receive data from serial port in to richtextbox and its working fine .. what i wanna do is dislay data in textbox by spliting string[code]...
Timer Tick Event And Serial Port / Read And Display Live Data?
Jun 21, 2009[code]...
I have a quick question regarding the serial port and timer tick event. Basically i have a micro processor connected to the PC via the serial port. With a baurd rate of 38400 set.When the PC sends the micro ":K + VBCRLF" the micro response with a string of information (ASCII encoded) and delimited with a "," and at the end of the transmission a cartridge return line feed is added.Example of sent string:
"12,1134,123,545,76,6868,34,232,1,2,3,6,7,8" These numbers are then split using the VB mystring.split(",") function into an array of strings, then the numbers are converted using ctype. After which my UI is then updated.I have Witten the code in a tick timer event using a timer count of 300ms. Although the program runs and the UI is updated i end it with lots of exception errors. I think allot of this is down to the serial port either timing out or not reading complete string.Or possibly the timer has not executed all the code before another tick event happens Even after adding a few try catch statements i am still having problems. Can anybody suggest a better way of doing it?I was thinking of using a do while loop and at the end a sleep function instead of the timer tick event.I need the speed as i am trying to read and display live data.
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Reading Serial Port Read Data From Serial Port?
Aug 16, 2011i am a absolute beginner and i want to use vb to receive data from micro controller through serial port using rs232 standards, i found this code to receive the data serially, can any one tell me where should i paste this code, so that the data received will be displayed in message box.Private Sub DataReceived(ByVal sender As System.Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) HandlesSerialPort1.DataReceived
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Read The Data From Barcode Weight Scales By Serial Port And TcpIp Port?
Nov 27, 2010I'm mohammed from Oman ,I'm visual studio.net programmer How I can Read the Data From Barcode Weight scales By Serial port and TcpIp port
View 7 RepliesDisplay The Serial Port String In A Label Or Text Box?
Dec 19, 2011I'm trying to read a string(what's going on) from my Arduino and display it in either a label or text box. but its not wanting to display the characters, or string i want it to. So I could really Here's the code I have right now:
Imports System.IO
Imports System.IO.Ports
Imports System.Threading
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Reading The Serial Port - Read And Display The Whole 16 Bytes In One Go?
Jul 8, 2009I'm working on a project involving reading RFID tags, I've written the code and it reads the tags ok by using the recieved data handler and displaying the result in a listbox, the only problem is that the data displayed has a couple of unreadable characters at the start (I'm using ReadLine() command.)If I read the buffer byte by byte the data is all readable.How can I read and display the whole 16 Bytes in one go??
View 3 RepliesSerial Port Example Code - Connect To A Modem Thru The Serial Port
Oct 26, 2011The link below has code to connect to a modem thru the serial port but it is for an earlier version of VB. when I convert the code, it does not fully convert and has 4 errors that prevent building the project. can someone tell me what needs to be changed or added?
[URL]
Note: the error: not CLS-Compliant
Getting Data From Serial Port
Jan 30, 2011I am facing problem reading data from Serial port. Actually I am connecting with the hardware device called Crimp Force Analyzer. It gives the data on hyperterminal and I have to read that data from my <acronym title="Visual Basic">vb</acronym>.net program. The data is somewhat like this:
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VB 2003 - Handling Data - Transmitting Data From A Comm Device Via Serial Port
Nov 10, 2009I'm currently working on a project where I am transmitting data from a comm device via the serial port and resorting the raw data (in binary) to its respective ascii values. The problem I'm facing is determining the most efficient method to accomplish my goal. Essentially, I have 68 bytes coming in, the first and second bytes represent the page and packet number and the data itself ranges from 3 to 64, the remaining for my checksum.
What I am needing to do is, grab 50 consecutive bytes per variable in my array, and that is where I'm confused. I have easily pulled my 3-64 bytes and stored that data to a string. I just don't know the most efficient method to accomplish my goal. Should I write directly to file all my data, as there are like 8 pages, of 128 packet data. [Code] I can capture the the first 50 by using a for-loop easily, but what would be the preferred method to track what data chunk I've taken? The more I think about it, I think I may just want to write to file, all my data, and then just take them back to back in 50 byte chunks. Is that the most efficient method?
Connect To Serial Port And Get The Data From That Using VB
Jan 12, 2012I want to connect to serial port and get the data from that using vb.net how to do this.........
i have found one sample and i tried that but in that datareceived event is not firing
Data Input From The Serial Port?
Jul 15, 2008how to write code to read data from the serial port. I have a microcontroller connected to the serial port and I need the C++ program to read the input and to perform a certain task according to the information.
View 19 RepliesData Logging Through Serial Port For Gps
Apr 8, 2010Data Logging Through Serial Port For Gps
View 1 RepliesHow To Read Data From Serial Port
Jan 3, 2010I am trying to read data from rfid tag using rfid reader. i can connect reader, but cannot get data?
View 4 RepliesRead Data From Serial Port?
Apr 2, 2012I am using a VB.NET(VS2010) to read data from serial port. I have 8-bit data to collect through rs232. This data is represented numbers. What reading method should I use and how to convert it to double format?
View 4 RepliesRead Data From The Serial Port?
Nov 12, 2009I need to read data from the serial port Ive used serialport from the toolbox , but dont know how to use it. I used to do it on a Amiga like this
open serial("serial.device".0.2400.0) rem(open port)
repeat GW.w=readserial(0)
if gw>29 and gw<128
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Reading Hex Data Through The Serial Port?
Oct 27, 2009I am having a little trouble receiving data via the serial port. I can send just fine. I am using Serial Port object.
Basically my data expected is in the form of: [0x43 0x35 0x64 0x35...] broken up into bytes. I tried using the SerialPort.Read() function but can't get it to work.
Receive HEX Data Through Serial Port?
Jan 5, 2009I am trying to recieve HEX data from a seriall device. Code is as below . but the required output is not correct. Some chracter code are not correct even in decimal . like for 80 i recieved 3F and for c0 also.for example i recived a string .
10 02 3F 00 10 03 3F 61
but in actual data should be
10 02 80 00 10 03 c0 61
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Receiving Data From Serial Port?
Nov 30, 2008i was not getting o/p properly when i tried to receive data from serial port using the following code.
Public Class form1
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
If SerialPort1.IsOpen Then
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Sending Data To Serial Port?
May 1, 2010i am doing a project in vb 2008 .net.during execution of the code, a different number is generated every second. the numbers are either 0,1,2,3,4, or 5. how do i send this number every second to the serial port. at the serial port i have a microcontroller connected which should accept this number and light up an LED coresponding to the number received.
View 1 RepliesSending Hex Data Through Serial Port?
Mar 1, 2010I am trying to send a command through my serial port to a external device. The format of the command frame is, more or less, like this:
'0x0A 0x03 0x20 0x00 Checksum'
What I've written on my code is just this:
VB code
num_dec = &HA + &H3 + &H20 + &H0
checksum = DecToHex(num_dec) '2D
data=&HA & &H3 & &H20 & &H0
SerialPort_RFID.Write(data & checksum)
The problem is that when I stop the program on the Serial...Write line, I see that the data I sent is on integer format instead of Hex format.
Serial Port Data Monitoring?
Jun 4, 2012I've searched in the forum thread for my needs, and I couldn't find any. So here is my problem. I need to monitor the data passing trough serial communication, between local serial port and some device with an application written in vb.netThe idea is to see the data without opening the port.For example I want to start the program, choose the serial port that I want to monitor, and then to start some other application that opens the serial port, and start to send data. Another device "answers", and I want to see the the sent and received data from the first program, and the process that opens the port.I thought that I can use the serial port event "DataReceived", but actually nothing happens. I think my approach is wrong. CHere is my code:
Imports System.IO
Public Class Form2
Private WithEvents sp As Ports.SerialPort
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Using Chr$ To Send Data To The Serial Port?
Feb 18, 2011I used this code in the pass with VB6 to send hex data over the serial port to a microcontroller.
MSComm1.Output = "C"
Send command ID
MSComm1.Output = Chr$("1") Send Command Parameter
MSComm1.Output = Chr$(CStr(240)) Send CR
I need to convert the code using VB2010, but Chr$ is not available, and anything I tried will not send the actual ascii code character......
Using The Received Data From Serial Port?
Oct 6, 2011the problem I am having is probably mainly because of I am very new at VB.net, anyway, the thing is, I am able to receive data from microcontroller successfully. The format of the data coming from the Microcontroller is shown below
0,2 1023,1023 1023,1023 1023,1023
1,5 1023,1023 1023,1023 1023,1023
2,8 1023,1023 1023,1023 1023,1023
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VB Receive Data From Serial Port?
Apr 20, 2011I use ReceiveSerialData() function to get a string (20 byte of 8 bit data) from serial portBut I faild and got the error "operation has timeout". I am new in VB 2010
View 10 RepliesWriting Data To Serial Port?
Nov 27, 2010I'm having problem while writing data to serial port. This piece of code is meant to write all the integer numbers in a text file to the SerialPort (connected to a USB-Serial Converter) when StartButton is clicked. However, it only managed to send two numbers and stopped at "USBSerialPort.Write(t, 0, 2)".
Private Sub StartButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles StartButton.Click
USBSerialPort.DiscardOutBuffer()
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.net, Read 8 Bit Data From Serial Com1 Port?
Jun 25, 2010I am trying to read data from serial com1 port. Now, I am not sure how to send. I found so many method to send but that are not so good and I cann't read any data. I am using VB.net 2005. Which is the best way and how can I read and send?
View 1 RepliesAny Way To Write Data To Serial Port To Control Toy Car?
Feb 6, 2012I just need to write data to serial port to control a toy car
Moving left, right, forward, back.
Close Serial Port After Data Received?
Feb 22, 2009I have the following code that listens to a serial port and writes the incoming data to a listview control (the serial data are a delimited string taht arrives once per second that I parse into separate listview subitems). I would like to be able to close/disconnect the serial port once a specific value in the incoming string is detected. For example, in this case one of the columns of data in the incoming string represents depth, I would like to close the serial port when the depth falls below a given number. I have tried the code below, but my program crashes on the SerialPort.CLose method.
dim m_strOBS() as string
Private Sub SerialPort_OBS_DataReceived(ByVal sender As Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) _
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