对Python 简单串口收发GUI界面的实例详解

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。

下面是源代码，一些错误提示功能还没有做，目前只是简单地实现了下位机与pc的通信界面，下位机还是用的stm32f103

#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('<<comboboxselected>>',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('<<comboboxselected>>',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()

以上这篇对python 简单串口收发gui界面的实例详解就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。