对Python简单串口收发GUI界面的实例详解-创新互联
忙活了三个多小时,连学带做,总算是搞出来了一个具有基本功能的串口通信PC机的GUI界面,Tkinter在python中确实很好用,而且代码量确实也很少,不足的是Tkinter不自带combox,但是幸运的是我下载的2.7版本自带了包含有combox的ttk模块,于是乎问题就顺利解决了。
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#encoding=utf-8 __author__ = 'freedom' from Tkinter import * from serial import * import ttk class GUI(Frame): def __init__(self,master): frame = Frame(master) frame.pack() #串口设置相关变量 self.port = 0 self.baudrate = 9600 #串口号提示 self.lab1 = Label(frame,text = 'Serial Number') self.lab1.grid(row = 0,column = 0,sticky = W) #串口号选择下拉菜单 self.boxValue = StringVar() self.boxChoice = ttk.Combobox(frame,textvariable = self.boxValue,state = 'readonly') self.boxChoice['value'] = ('COM1','COM2','COM3','COM4') self.boxChoice.current(0) self.boxChoice.bind('<>',self.Choice) self.boxChoice.grid(row = 1,column = 0,sticky = W) #波特率选择提示 self.lab2 = Label(frame,text = 'Baudrate Set') self.lab2.grid(row = 2,column = 0,sticky = W) #波特率选择下拉菜单 self.boxValueBaudrate = IntVar() self.BaudrateChoice = ttk.Combobox(frame,textvariable = self.boxValueBaudrate,state = 'readonly') self.BaudrateChoice['value'] = (9600,115200) self.BaudrateChoice.current(0) self.BaudrateChoice.bind('< >',self.ChoiceBaudrate) self.BaudrateChoice.grid(row = 3,column = 0,sticky = W) #输出框提示 self.lab3 = Label(frame,text = 'Message Show') self.lab3.grid(row = 0,column = 1,sticky = W) #输出框 self.show = Text(frame,width = 40,height = 5,wrap = WORD) self.show.grid(row = 1,column = 1,rowspan = 4,sticky = W) #输入框提示 self.lab4 = Label(frame,text = 'Input here,please!') self.lab4.grid(row = 5,column = 1,sticky = W) #输入框 self.input = Entry(frame,width = 40) self.input.grid(row = 6,column = 1,rowspan = 4,sticky = W) #输入按钮 self.button1 = Button(frame,text = "Input",command = self.Submit) self.button1.grid(row = 11,column = 1,sticky = E) #串口开启按钮 self.button2 = Button(frame,text = 'Open Serial',command = self.open) self.button2.grid(row = 7,column = 0,sticky = W) #串口关闭按钮 self.button3 = Button(frame,text = 'Close Serial',command = self.close) self.button3.grid(row = 10,column = 0,sticky = W) #串口信息提示框 self.showSerial = Text(frame,width = 20,height = 2,wrap = WORD) self.showSerial.grid(row = 12,column = 0,sticky = W) #串口初始化配置 self.ser = Serial() self.ser.setPort(self.port) #self.ser.setBaudrate(self.baudrate) #self.ser.open() #print self.ser.isOpen() #print self.ser def Choice(self,event): context = self.boxValue.get() list = ["COM1",'COM2','COM3','COM4'] if context in list: self.port = list.index(context) self.ser.setPort(self.port) print self.port def ChoiceBaudrate(self,event): self.baudrate = self.boxValueBaudrate.get() self.ser.setBaudrate(self.baudrate) print self.baudrate def Submit(self): context1 = self.input.get() n = self.ser.write(context1) output = self.ser.read(n) print output self.show.delete(0.0,END) self.show.insert(0.0,output) def open(self): self.ser.open() if self.ser.isOpen() == True: self.showSerial.delete(0.0,END) self.showSerial.insert(0.0,"Serial has been opend!") def close(self): self.ser.close() if self.ser.isOpen() == False: self.showSerial.delete(0.0,END) self.showSerial.insert(0.0,"Serial has been closed!") root = Tk() root.title("Serial GUI") #root.geometry("3000x4000") app = GUI(root) root.mainloop()
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