Use RS-232 Com port send and receive data Private Sub btnOpenCOM_Click() //設定Com Port 號碼 MSComm1.CommPort = CInt(txtCOM.Text) //Set Dataformat MSComm1.Settings = "9600,n,8,1" //開啟Com Port MSComm1.PortOpen = True End Sub Private Sub btnSend_Click() //傳送資料 MSComm1.Output = txtSend.Text End Sub Private Sub cmdReceive_Click() //接收資料 txtReceive.Text = txtReceive.Text & MSComm1.Input End Sub

Send\Form1.frm
....\Project1.exe
....\Project1.vbp
....\Project1.vbw
Send

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