手机通过蓝牙串口与arduino通信

前段时间把蓝牙透传模块在arduino上的使用弄好了，今天拿我的手机来测试一下。

我手机是多普达S1，因为是行货，没有wifi，想控制arduino只能通过蓝牙了。

还好wm6操作系统能运行.net2.0开发的移动软件，用serialport控件来作为串口通信的主要工具。

首先把arduino接上蓝牙透传模块，方法在前面的文章提到了，这里就不再叙述。

然后开启手机的蓝牙，搜索蓝牙设备，能找到模块名称，选择之后建立com口，我这里建立的是com6

然后就是在手机上弄个小软件来通信了。

用serialport控件，设置好基本的属性，主要是和arduino的波特率要一致，串口号是com6，基本就没什么问题，我这里很快就能正常通信了。

我把我测试的代码发来让大家了解一下



Imports System.Text
Imports System.IO.Ports
Imports System.Threading
Imports Microsoft.WindowsMobile.Forms
Imports System.Runtime.InteropServices

Public Class Form1

Dim receivedData As String
Private Delegate Sub settexts()

Private Sub sp_DataReceived(ByVal sender As Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) Handles sp.DataReceived
Try
Dim bytesRead As Integer = sp.BytesToRead
Dim bytes As Byte() = New Byte(bytesRead + 1) {}
sp.Read(bytes, 0, bytes.Length)
receivedData = System.Text.Encoding.ASCII.GetString(bytes, 0, bytes.Length - 1)
sp.DiscardOutBuffer()
sp.DiscardInBuffer()
Invoke(New settexts(AddressOf settext))
Catch ex As Exception
MessageBox.Show(ex.Message)
sp.Write("sync")
End Try
End Sub

Private Sub settext()
TextBox2.Text = TextBox2.Text & receivedData
TextBox2.ScrollToCaret()
End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
TextBox2.Text = ""
Try
If sp.IsOpen = False Then
TextBox2.Text = "串口关闭"
sp.Open()
End If
sp.Write(Encoding.ASCII.GetBytes(TextBox1.Text & vbCrLf), 0, Encoding.ASCII.GetBytes(TextBox1.Text).Length)
sp.WriteLine("")
'sp.WriteLine(TextBox1.Text)

Catch ex As Exception
TextBox2.Text = ex.Message
sp.Close()
sp.Dispose()
End Try
End Sub

Private Sub Form1_Closing(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
sp.Close()
sp.Dispose()
End Sub

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
connport()
End Sub

Private Sub portname_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles portname.SelectedIndexChanged
connport()
End Sub

Private Sub connport()
Try
sp = New SerialPort(portname.SelectedItem, 9600, Parity.None, 8, StopBits.One)
sp.RtsEnable = True
sp.DtrEnable = True
sp.ReadTimeout = 1000
sp.Open()
If sp.IsOpen Then
TextBox2.Text = "串口连接"
End If

Catch ex As Exception
TextBox2.Text = ex.Message
End Try

End Sub

End Class

这个代码基本上能实现发送数据和同步接收数据并很好的显示出来。但是因为arduino的数据会发送的很频繁，比如时刻反馈温度传感器发送的温度数据、光线传感器发送的光线数据等，使得该软件在接收数据的时候无法操作其他的功能，甚至会假死，也许通过建立线程能解决这个问题，以后再弄哈