Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As _
  System.EventArgs) Handles Timer1.Tick
        Dim test As Int32 = Inp(889) And 8
        If test = 8 Then
            Out(888, Inp(888) And 254)       'Led D0 ist Aus
        Else
            Out(888, Inp(888) Or 1)          'Led D0 ist An
        End If
        Me.Text = test
    End Sub