python TK之串口工具制作（2）

Phoebe ·

更新时间:2024-11-14

· 746 次阅读

基于上一篇python TK之串口工具制作（1）的博文，我在这里做一些功能的完善，添加文本框数据编写发送功能。
首先我们在TK界面制作页面（按键初始化）增加文本框以及数据发送按钮：

#按钮初始化
def Button_Init():
 global root
 global com_list_tk
 global Test_Log
 global Entry_SN
 #串口读取写入
 Button(text='扫描串口', command=Scan_Com, width=24, height=3,font=('宋体', 11)).grid(row=0, column=0)
 Button(text='选择串口', command=Select_Com, width=24, height=3,font=('宋体', 11)).grid(row=1, column=0)
 #Button(text='选择串口', command=send_Com, width=24, height=3, font=('宋体', 11)).grid(row=0, column=1)
 Button(text='删除文本框', command=Delete_Text, width=24, height=3, font=('宋体', 11)).grid(row=0, column=1)
 Button(text='关闭串口', command=close_serial, width=24, height=3, font=('宋体', 11)).grid(row=1, column=1)
 Button(text='发送', command=send_data, width=10, height=2, font=('宋体', 11)).grid(row=3, column=2)
 Entry_SN = Entry(root)
 Entry_SN.grid(row=3, column=0, ipadx=131, ipady=10,columnspan=2)
 com_list_tk = Listbox(root)
 com_list_tk.grid(row=2, column=0, ipadx=28, ipady=60)
 Test_Log = scrolledtext.ScrolledText(root, width=23, height=20, font=('宋体', 11), bg='Linen')
 Test_Log.grid(row=2, column=1)

再增加数据发送函数

#发送数据
def send_data():
    global ser
    global root
    global cmd
    global Test_Log
    global Test_Log_flag
    send_entry = Entry_SN.get()
    ser.write(binascii.a2b_hex(str(send_entry)))
    Test_Log.tag_config('s', background='springgreen')
    Test_Log.insert("end", datetime.datetime.now().strftime('%H:%M:%S ') +'send_data:' +send_entry + "\r\n", "s")
    Entry_SN.delete(0, END)

这样，完整的串口数据收发工具制作就完成了，下面是完整的代码以及功能演示：

# -*- coding:utf-8 -*-
import serial
import serial.tools.list_ports
from tkinter import *
import threading
import binascii
from tkinter import scrolledtext
import time
import datetime
#扫描串口
def Scan_Com():
 global root
 global com_list_tk
 global Test_Log
 com_list_tk.delete(0, END)
 port_list = list(serial.tools.list_ports.comports())
 if len(port_list) == 0:
     Test_Log.tag_config('t', background='tomato')
     Test_Log.insert("end", "请插入串口！！！\r\n", "t")
     Test_Log.see(END)
 for i in range(0,len(port_list)):
     com_list_tk.insert(END, port_list[i])
#选择串口
def Select_Com():
 global com_list_tk
 global ser
 global Test_Log
 try:
     com = com_list_tk.get(com_list_tk.curselection())
 except:
     Test_Log.tag_config('t', background='tomato')
     Test_Log.insert("end", "请先扫描串口！！！\r\n", "t")
     Test_Log.see(END)
     return
 if com.find('-') != -1:
     com = com[:com.find('-')]
 try:
     ser = serial.Serial(com,115200)
     serial_recv_threading = threading.Thread(target=Serial_Recv,daemon=True)
     serial_recv_threading.start()
     #Heartbeat()
     #Test_Log.delete(0.0,END)
     Test_Log.tag_config('s', background='springgreen')
     Test_Log.insert("end", com + "连接成功！\r\n", "s")
     Test_Log.see(END)
 except:
     Test_Log.delete(0.0,END)
     Test_Log.tag_config('t', background='tomato')
     Test_Log.insert("end", com+"连接失败！！！\r\n", "t")
     Test_Log.see(END)
#关闭串口
def Select_Com_close():
 global ser
 global Test_Log
 ser.close()
 Test_Log.tag_config('t', background='tomato')
 Test_Log.insert("end", "串口已关闭！\r\n", "t")
 Test_Log.see(END)
#按钮初始化
def Button_Init():
 global root
 global com_list_tk
 global Test_Log
 global Entry_SN
 #串口读取写入
 Button(text='扫描串口', command=Scan_Com, width=24, height=3,font=('宋体', 11)).grid(row=0, column=0)
 Button(text='选择串口', command=Select_Com, width=24, height=3,font=('宋体', 11)).grid(row=1, column=0)
 #Button(text='选择串口', command=send_Com, width=24, height=3, font=('宋体', 11)).grid(row=0, column=1)
 Button(text='删除文本框', command=Delete_Text, width=24, height=3, font=('宋体', 11)).grid(row=0, column=1)
 Button(text='关闭串口', command=close_serial, width=24, height=3, font=('宋体', 11)).grid(row=1, column=1)
 Button(text='发送', command=send_data, width=10, height=2, font=('宋体', 11)).grid(row=3, column=2)
 Entry_SN = Entry(root)
 Entry_SN.grid(row=3, column=0, ipadx=131, ipady=10,columnspan=2)
 com_list_tk = Listbox(root)
 com_list_tk.grid(row=2, column=0, ipadx=28, ipady=60)
 Test_Log = scrolledtext.ScrolledText(root, width=23, height=20, font=('宋体', 11), bg='Linen')
 Test_Log.grid(row=2, column=1)
#发送数据
def send_data():
    global ser
    global root
    global cmd
    global Test_Log
    global Test_Log_flag
    send_entry = Entry_SN.get()
    ser.write(str(send_entry).encode("gbk"))
    Test_Log.tag_config('s', background='springgreen')
    Test_Log.insert("end", datetime.datetime.now().strftime('%H:%M:%S ') +'send_data:' +send_entry + "\r\n", "s")
    Entry_SN.delete(0, END)
#刪除文本框
def Delete_Text():
 global Test_Log
 Test_Log.delete(0.0,END)
 Test_Log.tag_config('n', background='green')
 Test_Log.insert('end','文本框清除成功'+'\r\n','n')
 Test_Log.see(END)
#关闭串口
def close_serial():
 global ser
 ser.close()
 Test_Log.tag_config('n', background='red')
 Test_Log.insert("end", "串口已关闭！\r\n", "n")
 Test_Log.see(END)
def Serial_Recv():
 global ser
 global root
 global cmd
 global Test_Log
 global recv_data
 global Test_Log_flag
 try:
     while True:
         time.sleep(0.05)
         data_len = ser.inWaiting()
         if data_len == 0:
             continue
         print(data_len)
         recv_data = str(binascii.b2a_hex(ser.read(data_len)))[2:-1]
         print(datetime.datetime.now().strftime('%H:%M:%S'),'要处理的数据', recv_data)
         Test_Log.tag_config('s', background='springgreen')
         Test_Log.insert("end", datetime.datetime.now().strftime('%H:%M:%S ') + 'rec_data:'+recv_data +"\r\n", "s")
 except:
     ser.close()
     Test_Log.tag_config('t', background='tomato')
     Test_Log.insert("end", datetime.datetime.now().strftime('%H:%M:%S ') + "串口已关闭，请重新选择串口！ \r\n", "t")
     Test_Log.see(END)
def main():
 global root
 root = Tk()
 root.title('串口工具 V1.01')
 root.geometry('500x500')
 Button_Init()
 root.mainloop()
if __name__ == '__main__':
 main()

功能演示：
在这里插入图片描述
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