Python版的Arduino USB端口调试终端程序，用了wxPython图形界面库。便于将PC作为上位机，去控制Arduino。
main.py
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import wx
from MainFrame import MainFrame
if __name__ == ‘__main__’:
app = wx.App()
frm = MainFrame(None)
frm.Show()
app.MainLoop()
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UsbInterface.py
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import serial
import serial.tools.list_ports
# 取USB设备列表
def getUsbDeviceList():
#取串口列表
serialPortList = serial.tools.list_ports.comports()
deviceList = []
i = 0
for nowPort in serialPortList:
#取出串口设备信息
nowUsbDev = {
‘id’: i, #设备编号
‘label’: nowPort.description, #设备标题
‘port’: nowPort.device, #设备端口
‘idVendor’: nowPort.vid, #设备Vendor Id
‘idProduct’: nowPort.pid, #设备Product Id
}
deviceList.append(nowUsbDev)
i += 1
return deviceList
# 连接USB设备
def connectUsbDevice(port):
#连接串口设备
nowSerical = serial.Serial(port, 9600)
return nowSerical
# 关闭USB设备
def closeUsbDevice(serical):
#关闭串口
serical.close()
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MainFrame.py
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import wx
import _thread
import UsbInterface
class MainFrame(wx.Frame):
# Frame标题
labelFrame = “Arduino USB串口终端”
# 当前选择的USB的vid
idVendorUsbDevice = None
# 当前选择的USB的pid
idProductUsbDevice = None
# 当前选择的USB的标题
labelUsbDevice = None
# 当前选择的USB的端口
portUsbDevice = None
# 当前串口设备连接
serialUsbDevice = None
# 当前串口设备状态
statusSerialUsbDevice = 0 #0.未连接 1.已连接
# 构造函数
def __init__(self, *args, **kw):
super(MainFrame, self).__init__(*args, **kw)
pnl = wx.Panel(self)
# 标题
stTitle = wx.StaticText(pnl, label=self.labelFrame, pos=(10, 10))
font = stTitle.GetFont()
font.PointSize += 5
font = font.Bold()
stTitle.SetFont(font)
# USB设备
wx.StaticText(pnl, label=”USB设备：”, pos=(30, 53))
tcUsbDev = wx.TextCtrl(pnl, 1, ”,
pos=(110, 50),
style=wx.TE_READONLY,
size=(250, 25)
)
# 连接USB设备按钮
btnConnect = wx.Button(pnl, 2, ‘连接USB设备’,
pos=(110, 90),
size=(250, 25)
)
btnConnect.Disable()
btnConnect.Bind(wx.EVT_BUTTON, self.OnCheckButtonConnect)
# 接收到的信息列表
wx.StaticText(pnl, label=”接收的信息：”, pos=(30, 133))
tcRecv = wx.TextCtrl(pnl, 3, ”, pos=(110, 130),
size=(250,300),
style=wx.TE_MULTILINE|wx.TE_READONLY)
tcRecv.Disable()
# 待发送信息框
wx.StaticText(pnl, label=”待发送信息：”, pos=(380, 53))
tcSend = wx.TextCtrl(pnl, 4, ”,
pos=(460, 50),
size=(250, 25)
)
tcSend.Disable()
# 发送信息按钮
btnSend = wx.Button(pnl, 5, ‘发送信息’,
pos=(460, 90),
size=(250, 25)
)
btnSend.Disable();
btnSend.Bind(wx.EVT_BUTTON, self.OnCheckButtonSend)
# 已发送的信息列表
wx.StaticText(pnl, label=”已发送信息：”, pos=(380, 133))
tcSended = wx.TextCtrl(pnl, 6, ”, pos=(460, 130),
size=(250, 300),
style=wx.TE_MULTILINE | wx.TE_READONLY)
tcSended.Disable()
self.makeMenuBar()
self.Title = self.labelFrame
self.CreateStatusBar()
self.SetStatusText(“设备未连接！”)
self.SetSize(800,550)
# 构造菜单栏
def makeMenuBar(self):
SystemMenu = wx.Menu()
setupItem = SystemMenu.Append(-1, “设置…\tCtrl-S”,
“设置USB端口等资料”)
SystemMenu.AppendSeparator()
exitItem = SystemMenu.Append(wx.ID_EXIT)
helpMenu = wx.Menu()
aboutItem = helpMenu.Append(wx.ID_ABOUT)
menuBar = wx.MenuBar()
menuBar.Append(SystemMenu, “系统”)
menuBar.Append(helpMenu, “帮助”)
self.SetMenuBar(menuBar)
self.Bind(wx.EVT_MENU, self.OnSetup, setupItem)
self.Bind(wx.EVT_MENU, self.OnExit, exitItem)
self.Bind(wx.EVT_MENU, self.OnAbout, aboutItem)
# 退出
def OnExit(self, event):
self.Close(True)
# 设置
def OnSetup(self, event):
#取串口设备列表
nowDevList = UsbInterface.getUsbDeviceList()
devLabelList = []
for nowDev in nowDevList:
devLabelList.append(nowDev[‘label’])
#选择需要连接的设备
dialogSetup = wx.SingleChoiceDialog(None, “选择USB端口”, “设置”, devLabelList)
dialogSetup.ShowModal()
labelUsbDevSelect = dialogSetup.GetStringSelection()
indexUsbDevSelect = dialogSetup.GetSelection()
#设置当前选择的设备信息
self.labelUsbDevice = nowDevList[indexUsbDevSelect][‘label’]
self.idProductUsbDevice = nowDevList[indexUsbDevSelect][‘idProduct’]
self.idVendorUsbDevice = nowDevList[indexUsbDevSelect][‘idVendor’]
self.portUsbDevice = nowDevList[indexUsbDevSelect][‘port’]
self.SetStatusText(“当前设备 ” + labelUsbDevSelect + “：未连接”)
stUsbDev = wx.FindWindowById(1)
stUsbDev.SetValue(labelUsbDevSelect)
btnConnect = wx.FindWindowById(2)
btnConnect.Enable()
# 关于
def OnAbout(self, event):
wx.MessageBox(“说明幻想中……”,
“关于” + self.labelFrame,
wx.OK|wx.ICON_INFORMATION)
# 设计USB设备
def OnCheckButtonConnect(self, event):
btnConnect = wx.FindWindowById(2)
if self.statusSerialUsbDevice == 0:
#连接设备
btnConnect.SetLabel(‘断开USB设备’)
self.serialUsbDevice = UsbInterface.connectUsbDevice(self.portUsbDevice)
self.statusSerialUsbDevice = 1
try:
#开启新线程接收USB信息
_thread.start_new_thread(self.RecvUsbInfo, ())
except:
print(“Error: 无法启动线程”)
tcRecv = wx.FindWindowById(3)
tcRecv.Enable()
tcSend = wx.FindWindowById(4)
tcSend.Enable()
btnSend = wx.FindWindowById(5)
btnSend.Enable()
tcSended = wx.FindWindowById(6)
tcSended.Enable()
self.SetStatusText(“当前设备 ” + self.labelUsbDevice + “：已连接”)
else:
#断开连接
btnConnect.SetLabel(‘连接USB设备’)
self.statusSerialUsbDevice = 0
self.serialUsbDevice.close()
tcRecv = wx.FindWindowById(3)
tcRecv.Disable()
tcSend = wx.FindWindowById(4)
tcSend.Disable()
btnSend = wx.FindWindowById(5)
btnSend.Disable()
tcSended = wx.FindWindowById(6)
tcSended.Disable()
self.SetStatusText(“当前设备 ” + self.labelUsbDevice + “：未连接”)
# 发送信息
def OnCheckButtonSend(self, event):
tcSend = wx.FindWindowById(4)
tcSended = wx.FindWindowById(6)
nowOutput = tcSend.GetValue()
if len(nowOutput) > 0:
#判断有输入，发送串口信号
self.serialUsbDevice.write(bytes(nowOutput, encoding=”utf8″))
tcSended.AppendText(nowOutput + “\n”)
tcSend.SetValue(“”);
#接收信息（线程）
def RecvUsbInfo(self):
#不断循环读取端口信号，直至USB设备断开
while self.statusSerialUsbDevice == 1:
#读取多行串口信息
contentList = self.serialUsbDevice.readlines(1)
tcRecv = wx.FindWindowById(3)
strText = “”
for content in contentList:
strText += content.decode(“UTF-8”)
tcRecv.AppendText(strText)
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