ได้ 0.7-1.2 v .02A
เปิดลำโพงให้ดังเพื่อได้ยินเสียงจากการทดล
Private Sub Form_Load()
Form1.Caption = "App1"
With MSCOMM1
.Handshaking = 2 - comRTS
.RThreshold = 1
.RTSEnable = True
.Settings = "9600,n,8,1"
.SThreshold = 1
.PortOpen = True
' Leave all other settings as default values.
End With
Command1.Caption = "&Send"
Text1.Text = "Test string from App1 "
End Sub
Private Sub Command1_Click()
MSComm1.Output = Text1.Text
End Sub
Private Sub Form_Unload(Cancel As Integer)
MSComm1.PortOpen = False
End Sub
Private Sub Form_Load()
Form1.Caption = "App2"
With MSComm1
.CommPort = 2
.Handshaking = 2 - comRTS
.RThreshold = 1
.RTSEnable = True
.Settings = "9600,n,8,1"
.SThreshold = 1
.PortOpen = True
' Leave all other settings as default values.
End With
Text1.Text = ""
End Sub
Private Sub Form_Unload(Cancel As Integer)
MSComm1.PortOpen = False
End Sub
Private Sub MSComm1_OnComm()
Dim InBuff As String
Select Case MSComm1.CommEvent
' Handle each event or error by placing
' code below each case statement.
' This template is found in the Example
' section of the OnComm event Help topic
' in VB Help.
' Errors
Case comEventBreak ' A Break was received.
Case comEventCDTO ' CD (RLSD) Timeout.
Case comEventCTSTO ' CTS Timeout.
Case comEventDSRTO ' DSR Timeout.
Case comEventFrame ' Framing Error.
Case comEventOverrun ' Data Lost.
Case comEventRxOver ' Receive buffer overflow.
Case comEventRxParity ' Parity Error.
Case comEventTxFull ' Transmit buffer full.
Case comEventDCB ' Unexpected error retrieving DCB]
' Events
Case comEvCD ' Change in the CD line.
Case comEvCTS ' Change in the CTS line.
Case comEvDSR ' Change in the DSR line.
Case comEvRing ' Change in the Ring Indicator.
Case comEvReceive ' Received RThreshold # of chars.
InBuff = MSComm1.Input
Call HandleInput(InBuff)
Case comEvSend ' There are SThreshold number of
' characters in the transmit buffer.
Case comEvEOF ' An EOF character was found in the
' input stream.
End Select
End Sub
Sub HandleInput(InBuff As String)
' This is where you will process your input. This
' includes trapping characters, parsing strings,
' separating data fields, etc. For this case, you
' are simply going to display the data in the TextBox.
Text1.SelStart = Len(Text1.Text)
Text1.SelText = InBuff
End Sub