Android Question bluetooth: I can send but I can't receive

[morosh]

Hello:
I"m trying to develop an application to control remote devices from smartphone (that's working) and also to read measurements from sensors: this isn't working.
when I send data from PC (emulating hardware) to smartphone, the application blocked and stopped. I get the snippet from the forum and modified it to my needs

any help is appreciated

#Region  Project Attributes
    #ApplicationLabel: bluetooth1
    #VersionCode: 1
    #VersionName:
    'SupportedOrientations possible values: unspecified, landscape or portrait.
    #SupportedOrientations: unspecified
    #CanInstallToExternalStorage: False
#End Region

#Region  Activity Attributes
    #FullScreen: False
    #IncludeTitle: True
#End Region

Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'These variables can be accessed from all modules.
    Dim Serial1 As Serial
    Dim TextReader1 As TextReader
    Dim TextWriter1 As TextWriter
    Dim Timer1 As Timer
    Dim connected As Boolean
End Sub

Sub Globals
    'These global variables will be redeclared each time the activity is created.
    'These variables can only be accessed from this module.
    Dim txtLog As EditText
    Dim Dev1 As Button
    Dim Dev2 As Button
    Dim Dev3 As Button
    Dim Dev4 As Button
    Dim Dev5 As Button
    Dim Dev6 As Button
    Dim Dev7 As Button
    Dim Dev8 As Button
    Dim Label1 As Label
End Sub

Sub Activity_Create(FirstTime As Boolean)
    If FirstTime Then
        Serial1.Initialize("Serial1")
        Timer1.Initialize("Timer1", 200)
    End If
    Activity.LoadLayout("layout1")
    Activity.AddMenuItem("Connect", "mnuConnect")
    Activity.AddMenuItem("Disconnect", "mnuDisconnect")
  txtLog.Text=""
End Sub

Sub Activity_Resume
    If Serial1.IsEnabled = False Then
        Msgbox("Please enable Bluetooth.", "")
    Else
        Serial1.Listen 'listen for incoming connections
    End If
End Sub

Sub mnuConnect_Click
    Dim PairedDevs As Map
    PairedDevs = Serial1.GetPairedDevices
    Dim l As List
    l.Initialize
    For i = 0 To PairedDevs.Size - 1
        l.Add(PairedDevs.GetKeyAt(i))
    Next
    Dim res As Int
    res = InputList(l, "Choose Dev", -1) 'show list with paired Devs
    If res <> DialogResponse.CANCEL Then
        Serial1.Connect(PairedDevs.Get(l.Get(res))) 'convert the name to mac address
    End If
End Sub

Sub Serial1_Connected (Success As Boolean)
    If Success Then
        ToastMessageShow("Connected successfully", False)
        TextReader1.Initialize(Serial1.InputStream)
        TextWriter1.Initialize(Serial1.OutputStream)
        Timer1.Enabled = True
        connected = True
    Else
        connected = False
        Timer1.Enabled = False
        Msgbox(LastException.Message, "Error connecting.")
    End If
End Sub

Sub mnuDisconnect_Click
    Serial1.Disconnect
    connected = False
End Sub

Sub Activity_Pause (UserClosed As Boolean)

End Sub

Sub Dev1_Click
    If connected Then
        TextWriter1.Write("A")
        TextWriter1.Flush
    End If
End Sub

Sub Dev2_Click
    If connected Then
        TextWriter1.Write("B")
        TextWriter1.Flush
    End If
End Sub

Sub Dev3_Click
    If connected Then
        TextWriter1.Write("C")
        TextWriter1.Flush
    End If
End Sub

Sub Dev4_Click
    If connected Then
        TextWriter1.Write("D")
        TextWriter1.Flush
    End If
End Sub

Sub Dev5_Click
    If connected Then
        TextWriter1.Write("a")
        TextWriter1.Flush
    End If
End Sub

Sub Dev6_Click
    If connected Then
        TextWriter1.Write("b")
        TextWriter1.Flush
    End If
End Sub

Sub Dev7_Click
    If connected Then
        TextWriter1.Write("c")
        TextWriter1.Flush
    End If
End Sub

Sub Dev8_Click
    If connected Then
        TextWriter1.Write("d")
        TextWriter1.Flush
    End If
End Sub

Sub Timer1_Tick
    If connected Then
        If TextReader1.Ready Then 'check if there is any data waiting to be read
            txtLog.Text = txtLog.Text & TextReader1.ReadLine & CRLF
            txtLog.SelectionStart = txtLog.Text.Length
        End If
    End If
End Sub

 

[Erel]

Almost all of this code is wrong.

Start with: Android Bluetooth / BluetoothAdmin Tutorial