#Region Project Attributes
#AutoFlushLogs: True
#CheckArrayBounds: True
#StackBufferSize: 600
#End Region
Sub Process_Globals
Public Serial1 As Serial
Public WiFi As ESP8266WiFi
Private bc As ByteConverter
Private connection As Int
Private server(2) As WiFiServerSocket
Private astream(2) As AsyncStreams
Private timer1 As Timer
Private pinSensor, pinButton As Pin
Private pinLED As Pin
Private pin1 As D1Pins
End Sub
Private Sub AppStart
Log("AppStart")
Serial1.Initialize(115200)
Log("StartAP: ", WiFi.StartAccessPoint2("myWifi", "12345678"))
Log("My AP ip: ", WiFi.AccessPointIp)
IntiServer
End Sub
#Region "server-Subs"
Public Sub IntiServer
server(0).Initialize(51041, "Server_NewConnection")
server(0).Listen
server(1).Initialize(51042, "Server_NewConnection")
server(1).Listen
pinButton.Initialize(pin1.D3, pinButton.MODE_INPUT_PULLUP)
pinButton.AddListener("pinButton_StateChanged")
pinSensor.Initialize(pin1.D5, pinSensor.MODE_INPUT_PULLUP)
pinSensor.AddListener("pinSensor_StateChanged")
pinLED.Initialize(pin1.D1, pinLED.MODE_OUTPUT)
timer1.Initialize("timer1_Tick", 1000)
timer1.Enabled = True
End Sub
Sub Server_NewConnection (NewSocket As WiFiSocket)
Log("new connection")
astream(connection).Initialize(NewSocket.Stream, "astream_NewData", "astream_Error")
astream(connection).Write(bc.StringToBytes("OK"))
connection = connection + 1
timer1.Enabled = False
End Sub
Sub Timer1_Tick
'' astream.Write(bc.UIntsToBytes(Array As UInt(pin.AnalogRead)))
' If server.Socket.Connected Then
' pinLED.DigitalWrite(True)
' astream.Write("Time here is: ").Write(NumberFormat(Millis, 0, 0))
' Else
pinLED.DigitalWrite(Not(pinLED.DigitalRead))
' End If
End Sub
Sub astream_NewData (Buffer() As Byte)
Log("Received: ", Buffer)
If bc.StringFromBytes(Buffer) = 1 Then
pinLED.DigitalWrite(True)
Else
pinLED.DigitalWrite(False)
End If
End Sub
Sub astream_Error
Log("Error.")
For i = 0 To connection - 1
server(i).Listen
Next
timer1.Enabled = True
End Sub
#End Region
Sub pinButton_StateChanged (State As Boolean)
Log("pinButton: ", State)
'state will be False when the button is clicked because of the PULLUP mode.
If Not(State) Then
SendValue("a")
'astream.Write(bc.StringToBytes("0"))
Else
SendValue("b")
'astream.Write(bc.StringToBytes("-0"))
End If
End Sub
Sub pinSensor_StateChanged (State As Boolean)
Log("pinSensor: ", State)
'state will be False when the button is clicked because of the PULLUP mode.
If Not(State) Then
SendValue("c")
'astream.Write(bc.StringToBytes("+"))
Else
SendValue("d")
'astream.Write(bc.StringToBytes("-"))
End If
End Sub
Sub SendValue(str As String)
For i = 0 To connection - 1
astream(i).Write(bc.StringToBytes(str))
Next
End Sub#Region Project Attributes
#ApplicationLabel: B4A Example
#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.
End Sub
Sub Globals
Private edtIp As EditText
Private btnConnect As Button
Private lblReading As Label
Private lblConnectedState As Label
Private lblLedRed As Label
Private lblLedYellow As Label
End Sub
Sub Activity_Create(FirstTime As Boolean)
Activity.LoadLayout("1")
edtIp.Text = "192.168.4.1"
End Sub
Public Sub StateChanged
If Starter.connected Then
lblConnectedState.Color = Colors.Green
Else
lblConnectedState.Color = Colors.Gray
End If
End Sub
Sub Activity_Resume
StateChanged
End Sub
Sub btnConnect_Click
CallSub2(Starter, "Connect", edtIp.Text)
End Sub
Sub Activity_Pause (UserClosed As Boolean)
End Sub
Sub btnLedOn_Click
Starter.AStream.Write("1".GetBytes("UTF8")) 'Led ON
End Sub
Sub btnLedOFF_Click
Starter.AStream.Write("0".GetBytes("UTF8")) 'Led OFF
End Sub
Sub WeMosLedRed(state As Boolean)
If state Then
lblLedRed.Color = Colors.Red
Else
lblLedRed.Color = Colors.Gray
End If
End Sub
Sub WeMosLedYellow(state As Boolean)
If state Then
lblLedYellow.Color = Colors.Yellow
Else
lblLedYellow.Color = Colors.Gray
End If
End Sub#Region Service Attributes
#StartAtBoot: False
#ExcludeFromLibrary: True
#End Region
Sub Process_Globals
Public astream As AsyncStreams
Private socket As Socket
Public connected As Boolean
Private bc As ByteConverter
Private watchdog As Timer
Private confirmation As Boolean
Private Port(2) As Int
Private connection As Int
Private WeMosIp As String
End Sub
Sub Service_Create
bc.LittleEndian = True
connection = 0
Port(0) = 51041
Port(1) = 51042
confirmation = False
watchdog.Initialize("watchdog", 1000)
End Sub
Sub Service_Start (StartingIntent As Intent)
End Sub
Public Sub Connect(ip As String)
WeMosIp = ip
If astream.IsInitialized Then
astream.Close
End If
ConnectToWeMos
End Sub
Private Sub ConnectToWeMos
socket.Initialize("socket")
socket.Connect(WeMosIp, Port(connection), 30000)
End Sub
Private Sub Socket_Connected (Successful As Boolean)
Log("Successful=" & Successful)
If Successful Then
connected = True
astream.Initialize(socket.InputStream, socket.OutputStream, "astream")
CallSub(Main, "StateChanged")
watchdog.Enabled = True
End If
End Sub
Private Sub watchdog_Tick
If confirmation Then
watchdog.Enabled = False
Else
connection = connection + 1
ConnectToWeMos
End If
End Sub
Private Sub Astream_NewData (Buffer() As Byte)
Dim key As String = bc.StringFromBytes(Buffer, "UTF8")
Log("Astream_NewData= " & key)
End Sub
Private Sub Astream_Error
Log("Disconnected")
connected = False
CallSub(Main, "StateChanged")
End Sub
Private Sub Astream_Terminated
Astream_Error
End Sub
Sub Application_Error (Error As Exception, StackTrace As String) As Boolean
Return True
End Sub
Sub Service_Destroy
End Sub
