Hi guys,
I'm attempting at just displaying the raw values from a COM serial port from a sensor, which gives around 4000 rows of data per cycle.
Here's the code:
The output textbox gives out a string of ????????? most of the time, sometimes numerical. Sometimes it's nothing.
Anything I should read more into? It seems not many thread discusses this at length so I'm tweaking about other people's code hoping for the best.
Anyhow an independent Python code with MatPlotLib, with the same settings for the serial port outputs the data quite nicely.
Thanks.
Vizier87
I'm attempting at just displaying the raw values from a COM serial port from a sensor, which gives around 4000 rows of data per cycle.
Here's the code:
Code:
Imports System
Imports System.IO.Ports
Imports System.Threading
Public Class Form1
Dim readThread As Thread = New Thread(AddressOf ReadFromCom)
Dim abortThread As Boolean
Public Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
SerialPort2.Open()
readThread.Start()
End Sub
Public Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
With SerialPort2
.PortName = "COM9"
.BaudRate = 2000000
.Parity = Parity.None
.DataBits = 8
.StopBits = 1
.ReadTimeout = Nothing
.DtrEnable = True
.RtsEnable = True
End With
End Sub
Public Sub ReadFromCom()
While abortThread = False
Try
Dim message As String = SerialPort2.ReadExisting
updateStatus("Received: " & message)
Catch ex As TimeoutException
updateStatus(ex.ToString)
End Try
End While
End Sub
Public Delegate Sub updateStatusDelegate(ByVal newStatus As String)
Public Sub updateStatus(ByVal newStatus As String)
If Me.InvokeRequired Then
Dim upbd As New updateStatusDelegate(AddressOf updateStatus)
Me.Invoke(upbd, New Object() {newStatus})
Else
TextBox1.Text = newStatus & vbCrLf & vbCrLf & TextBox1.Text
End If
End Sub
End ClassAnything I should read more into? It seems not many thread discusses this at length so I'm tweaking about other people's code hoping for the best.
Anyhow an independent Python code with MatPlotLib, with the same settings for the serial port outputs the data quite nicely.
Thanks.
Vizier87