Sending Binary Code To Parrarel Port?
Jul 31, 2010im interested on electronic and i working on my final project i not to experienced at VB so can anyone figuring this out i really need this , if there was any advance from this forum.
View 2 Repliesim interested on electronic and i working on my final project i not to experienced at VB so can anyone figuring this out i really need this , if there was any advance from this forum.
View 2 RepliesI need to pass a block of binary data to a web service. The object I'm passing is part of an API, so the Serialize/Deserialize/Byte functions are built-in to the API class. It is not explicitly XML Serializable as far as I can tell.
Unfortunately, whenever I pass the data to my web service, even as an encoded string, the service returns a "(400) Bad Request" error. If I remove the encoded data and replace the variable with a simple string, an appropriate response is returned, ruling out authentication, service errors, etc.
'Convert the byte array into an encoded string'
Dim unicodeEncoder As New UnicodeEncoding()
Dim serializedData As String = unicodeEncoder.GetString(myObject.Bytes).Trim()
Dim webAuth As New myWebService.ServiceSoapClient
MessageBox.Show(webAuth.VerifyFeatureSet(serializedData , "", "", "", ""))
how I can accomplish this? If I need to encode the data a different way, include a snippet for decoding it on the far end.
I am trying to read the data from a device on a serial port. I connect just fine and can receive data fine in text mode but not in binary mode. I am using VB.NET express. I am at the point in my code where I know that the device is sending 1056 binary bytes of data. How do I go about storing this is a binary array? After I have the array stored (which I dont yet) I need to go through the array and convert the binary to integers. They are 2byte integers in the format: 8bit MSB|8 bit LSB.
View 5 RepliesI am currently sending data via a serial port to an AVR microcontroller. I've tried searching the forums here first but haven't found any posts that specifically deal with what I'm trying to do. Here's some additional information that might help before proceeding:
Sendbox = textbox
ReceiveBox = listbox
ReceiveChk = checkbox
I currently have it setup so I enter hex data in Sendbox, click the button, it sends the data to the AVR micro via the serial port, which gets repeated back through the serial port and receives the hex data in the ReceiveBox. I want to be able to setup something similar so I am able to input data into a textbox as binary and have it sent to the AVR that way.
I realize it will send the same data whether I enter it in hex or binary form. I just want the option of being able to send it in either form.
Below is my code.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SendButton.Click
SerialPort1.Open()
[Code]....
I have only finished about sending string via COM.
View 3 RepliesI'm writing a simple application that can send e-mail;
Must I specify the Port, along with my username and password for the message to sent?
have gps constantly sending data but can read it from the com port
View 5 RepliesI'm working with a device using the serial port and i am sending a command from the pc to the device like this:
1. I Change the parity to mark
2. then send a byte
3. then Change the parity to space (here is the problem)
4. Send a lot of bytes
but the device just ignores all the last bytes, im pretty sure its a timing problems, so a timeout occurred attempting to send a command, how can i change the parity without losing time?
I'm working on a project that involves sending information through a GSM module, this module is connected to the system through a USB port. the information to be sent is gathered from a database using VB, now I need to send the information from my VB program to the USB port for onward delivery to the GSM module.
View 2 Repliesi 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 RepliesI 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.
When i try to send the &HBB value through it just sends a &H3F value i think is an error character i use this code:
SerialPort1.Write(System.Convert.ToChar(&HBB))
I am able to send other ascii character using this but i really need to send this &HBB value through serial port.
I'm trying to control a serial port device that both send and receives data. I can receive data quite happily from the serial port but I don't appear to be able to send data to the device. The device works perfectly as I can test it using putty, I open putty select serial and select 1200 baud, the device immediately lights up and can send and receive. However when the port is set up and opened in VB the device doesn't light up so I can't send data to it but can receive data from it. According to the instructions I need to send either ASCII 'X' Hex '$58' or Decimal '88' to make the device ready.
Code (VB Studio 2005) :-
Public Sub New(ByVal synchronisingObject As ISynchronizeInvoke)
ComPortUsed = My.Computer.Registry.GetValue("HKEY_LOCAL_MACHINESoftwareNJB", "COMUSED", Nothing)
PricePerTrack = My.Computer.Registry.GetValue("HKEY_LOCAL_MACHINESoftwareNJB", "PRICETRACK", Nothing)
Me.synchronisingObject = synchronisingObject
[Code] .....
I am sending data into VB through a serial port on my computer, from a microcontroller. The data enters VB in an ASCII form, but I need it as a number. I can use the Asc command to convert numbers 0-127 however after this it dosent work. I believe this is becaus the ascii character map only goes through 127. So how can I convert the rest of the data (128-256) to a numbers?
View 3 RepliesOpening and closing the port works fine, and as far as i can tell, the serial.write("blahblah") should be writing to the output buffer, but I am unable to test or verify this by reading it in. the commented "Receive data from serial port" and subsequent DoUpdate() function are where i am having trouble. It doesnt seem to actually be reading in the data if it is in fact writing it correctly.
[Code]...
I'm using 2008 Express and I'm trying to send 1 byte of data on the serial port.
Serialport1.write(123) Sends 3 bytes with the ascii codes representing 1 2 and 3.
I want to send 1 byte that contains 123.
I have a very basic knowledge of coding, just enough to understand some PicBASIC Pro and program a microchip to send the values of some variables to a PC via the com port. I've used a terminal utility like Hyperterm to confirm the right variables are being sent, so I thought it would be cool to have a custom application on the PC to display these variables, and possible set them via the application by writing the new one back to the PIC. So I downloaded VB express 2008 - and whilst it was "simple" to draw a box and add a few text boxes I'm lost at how to actually do anything practical with it
[Code]...
Could someone advise me in laymens terms exactly what I need to do inorder to populate the text boxes with the data from the PIC micro. Whilst I understand the basics about BASIC, I have no idea on things like classes etc
I ran into this problem while trying to write a Pan/Tilt/Zoom controller program. I found some very complicated examples, but managed to put the pieces together into this simple test program.I first import System.IO.Portsthen I define a new serial port and give it the required parametersI open the com port when the form loadsI have two working buttons, one to pan left, one to stop panning. The hex commands are pre-configured.The one for Stop is A0 00 00 00 00 00 AF 0FThe one for Pan Left is A0 00 00 04 14 00 AF 1FI declare a byte array to contain the command bytes and put them into the correct position.
Code below:
Imports System.IO.Ports
Public Class Form1
[code].....
I am working on writing a program that needs to send a command to a specific port on the same computer, I have that working fine. There is another piece of software running that is listening to that port for some commands (read on).
Dim myTcpClient As New TcpClient
myTcpClient.Connect("127.0.0.1", 61225)
Dim networkStream As NetworkStream = myTcpClient.GetStream()
However when I try to send a command I get no response...
Dim outStream As Byte() = System.Text.Encoding.ASCII.GetBytes("0x33")
networkStream.Write(outStream, 0, outStream.Length)
networkStream.Flush()
I have been given a list of protocols that I need to send to that port. What I have been told is that the size (in byes) is 1 and the value is "0x33" with no parameters. I am completely new to sockets and sending data through tcp.
I need to be able to send a binary string such as 00000011 to a printer port using visual basic.
View 14 RepliesThe 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
actually this is not an vb.net code belongs to vb..i have written it for getting the data from com port 1.but i dont know what data the com port is getting..
Dim Lng As Long
Dim lpPoint As POINTAPI
Dim X, Y As Long
[code].....
Decimal to binary code for program?[code]...
View 3 RepliesAnyone knows where I can download binary search tree for VB.Net ? I'm working on a small project for my company and I'm thinking of using BST as a sorting tool.I used to do BST using C++ and I was using linked list. I'm not sure if that can be done in VB.Net but is there any other ways? any input and comments are welcome.
View 1 RepliesI'm just curious to know if there's any way to build my app. from its binary code. I just saw the thread of creating a program builder and got curious.
View 1 RepliesI'm reading three bytes from a byte array. They are supposed to be the "Binary code of the e-card no". (e-card is a electronic card used for storing different information). Well, it works fine sometimes, and sometimes not.
[Code]...
I need to know how to crypt that:
Const FileSplit = "@vorfin@"
Cause its appearing on HEX Source.
well in a database is saved a binary code (this is a *.jar) i need to download this code (with a select query) and Rebuild this file
What are the setps for convert since a String to a File?
someone told me i need convert it to array byte, but i dont know how to convert a String to a array byte... what are the best steps?
this code return me a table
Public Function ConseguirCatalogo() As DataTable
Return conn.RegresarTabla("select archivo from catalogo where id= (select id from periodos where actual=1)")
End Function
[Code]....
now what are the next setp for convert it finally to a file? ( it is a *.jar)
I was thinking of an efficient way to add quarantining abilities to my antivirus application. I was thinking, which way is better: to copy the file into a specified directory and change its extension to none ("*. "). Either that or maybe I can save the file's binary code in an XML database. Which way s better?However, I have no idea how I will recompile the binary code once the user wants restore the file.
View 2 RepliesI have created a form in Visual Basic with two buttons, a PictureBox and a TextBox. I made the first button to load an image from my hard disk and show it in the PictureBox.What i want to do now is to make the second button to convert this image to binary and show the string in the TextBoxHere's the code for the first button:
View 27 Replies