最近导师给了个GSM模块,需要通过RS232串口发送AT指令来对模块进行控制,于是看了看python的GUI设计和串口部分的资料,自己编写了一个串口发送的小程序,虽然有不少的bug,但是总体上还是能用的,先把程序留在这,以便后续修改。
感觉python确实是一个很容易上手的语言,因为我事先都没看过pythonGUI设计和串口的资料,也就只用了一天就完成了这个小程序,感觉主要是python的语句确实很简洁,比方说在串口上,几句话就能实现串口发送和接收了。不过在做GUI设计方面,还是希望能像MFC那样可以拖拉控件,这样就方便了许多。
下面先发一张界面的截图:
好了,下面贴程序:
import wx import serial import time import threading class MyFrame(wx.Frame): def __init__(self,parent): print "MyFrame __init__" wx.Frame.__init__(self,parent,-1,'My COM',size=(500,500))#窗口标题栏和大小 panel=wx.Panel(self) sizer=wx.BoxSizer(wx.VERTICAL) panel.SetSizer(sizer) self.sendtxt=wx.StaticText(panel,-1,u'发送',(20,50),(50,15))#发送静态文本框 self.rectxt=wx.StaticText(panel,-1,u'接收',(20,200),(50,15))#接收静态文本框 self.baudratetxt=wx.StaticText(panel,-1,u'波特率',(20,320),(50,15))#波特率静态文本框 self.comtxt=wx.StaticText(panel,-1,'com',(20,350),(50,15))#com口静态文本框 baudratelist=['300','600','1200','2400','4800','9600','19200','38400' ,'43000','56000','57600','115200'] comlist=['com1','com2','com3','com4','com5','com6','com7','com8','com9'] self.baudratelistctr=wx.Choice(panel, -1, (70, 320), choices=baudratelist) self.Bind(wx.EVT_CHOICE,self.OnbaudrateCH,self.baudratelistctr)#波特率下拉列表响应函数 self.comlistctr=wx.Choice(panel, -1, (70, 350), choices=comlist) self.Bind(wx.EVT_CHOICE,self.OncomlistCH,self.comlistctr)#com下拉列表响应函数 self.baudratelistctr.SetSelection(5) self.comlistctr.SetSelection(3) self.sendctr = wx.TextCtrl(panel, -1, pos = (100, 50), size = (200, 100), style=wx.TE_MULTILINE|wx.TE_CENTER) self.recctr = wx.TextCtrl(panel, -1, pos = (100, 200), size = (200, 100), style=wx.TE_MULTILINE|wx.TE_CENTER) self.sendbutton=wx.Button(panel,-1,u'发送',pos=(350,50))#发送按钮 self.Bind(wx.EVT_BUTTON,self.OnSend,self.sendbutton) self.ClearRecbutton=wx.Button(panel,-1,u'清空接收列表',pos=(350,200)) self.Bind(wx.EVT_BUTTON,self.OnClearRec,self.ClearRecbutton) index=self.baudratelistctr.GetSelection() BaudRate=self.baudratelistctr.GetString(index)#获取波特率 index=self.comlistctr.GetSelection() ComNum=self.comlistctr.GetString(index)#获取com口 t = threading.Timer(0.1,self.myreceive) t.start() self.Centre() global mycom try: mycom= serial.Serial(ComNum,BaudRate,timeout=1) except: wx.MessageBox('open com fail','error') return None def myreceive(self): try: n=mycom.inWaiting() except: return None if n!=0: str1=mycom.read(n) self.recctr.Value=str1 t = threading.Timer(0.1,self.myreceive) t.start() def OnClearRec(self,event): self.recctr.Value='' def OnbaudrateCH(self,event): global mycom index=self.baudratelistctr.GetSelection() BaudRate=self.baudratelistctr.GetString(index)#获取波特率 mycom.setBaudrate(BaudRate) print mycom.inWaiting def OncomlistCH(self,event): global mycom index=self.comlistctr.GetSelection() ComNum=self.comlistctr.GetString(index)#获取com口 try: mycom.setPort(ComNum) except: wx.MessageBox('change port fail','error') return None print mycom.inWaiting def OnSend(self,event): #发送处理程序 value=self.sendctr.GetValue() n=mycom.write(value) ''' def OnRec(self,event): #接收处理程序 n=mycom.inWaiting() str1=mycom.read(n) self.recctr.Value=str1''' class MyApp(wx.App): #自定义应用程序对象 def OnInit(self): print "MyApp OnInit" self.frame = MyFrame(None) id=self.frame.GetId() print "Frame ID:",id self.frame.Show(True) return True def OnExit(self): print "MyApp OnExit" mycom.close() time.sleep(2) if __name__ == '__main__': print "Main start" app = MyApp() #使用从wx.App继承的子类 print "Before MainLoop" app.MainLoop() print "After MainLoop"