'Code in Timer
    'Trigger
    Dim tcpClient As New System.Net.Sockets.TcpClient()
    tcpClient.Connect("ip", port)
    Dim networkStream As NetworkStream = tcpClient.GetStream()
    If networkStream.CanWrite Then
        networkStream.Write(dataTrigger, 0, n)
        tcpClient.Close()
    Else

        If Not networkStream.CanWrite Then
            Console.WriteLine("cannot read data from this stream")
            tcpClient.Close()
        End If
    End If
    networkStream.Close()

    'Read images
    Dim tcpClient As New System.Net.Sockets.TcpClient()
    tcpClient.Connect("ip", port)
    Dim networkStream As NetworkStream = tcpClient.GetStream()
    If networkStream.CanRead Then
        ' Reading data length
        Dim dataLength(15) As Byte
        networkStream.Read(dataLength, 0, 16)

        ' Reading all data
        Dim bytesReaded, bytesLeft, bytesCounter As Integer
        bytesCounter = 0
        bytesLeft = dataLength
        Do While bytesLeft > 0
            bytesReaded = networkStream.Read(dataImages, bytesCounter, bytesLeft)
            bytesCounter = bytesCounter + bytesReaded
            bytesLeft = dataLengthInt - bytesCounter
        Loop
        tcpClient.Close()
    Else
        If Not networkStream.CanRead Then
            Console.WriteLine("cannot not write data to this stream")
            tcpClient.Close()
        End If
    End If
    networkStream.Close()