20170922 （考核）基于TK的4位数码管倒计时器的制作

from gpiozero import LEDBoard,Button
from time import sleep
from signal import pause
import threading
import tkinter as tk
from tkinter import messagebox


DM = LEDBoard(2, 3, 4, 14, 17,27,22,24,active_high=False)
PX = LEDBoard(7,8,9,11,active_high=False)

M7G= [
    (0, 0, 0, 0, 0,0, 0,0),
    (1, 1, 1, 1,1, 1,0,0),
    (0, 1, 1, 0, 0,0, 0,0),
    (1, 1, 0, 1, 1,0, 1,0),
    (1, 1, 1, 1,0, 0,1,0),
    (0, 1, 1, 0,0, 1,1,0),
    (1, 0, 1, 1,0, 1,1,0),
    (1, 0, 1, 1,1, 1,1,0),
    (1, 1, 1, 0,0, 0,0,0),
    (1, 1, 1, 1,1, 1,1,0),
    (1, 1, 1, 1,0, 1,1,0),
    ]

Led_Buf =[1,2,3,4]

n=0
def fun_timer():
    #print('Hello Timer!')
    global n
    PX.off()#消隐
    DM.value = M7G[Led_Buf[n]+1]
    if n==2:
        DM[7].on()
    PX[n].on()
    #sleep(1/(75*4))#75HZ
    n+=1
    n&=3
    timer = threading.Timer((1/(200*4)), fun_timer)#100hz*4执行一次
    timer.start()

v=5
def printhello():
    #tt.insert(END, "hello")
    global v
    try:
        v=(int)(tt.get('1.0','1.3'))
    except :
        wb.set("错误：请输入正确参数")
    print(v)
    
def fun_timer2():
    global v
    if v>0:
        Led_Buf[3]-=1
        if Led_Buf[3]<0:
            Led_Buf[3]=9
            #v-=1
            Led_Buf[0] = v//100%10
            Led_Buf[1] = v//10%10
            Led_Buf[2] = v%10
        else:
          Led_Buf[3]-=1
    elif v==0:
        
        #tk.messagebox.showwarning('Python Tkinter', '倒计时时间到！！！')
        #v=-1
    else:
        pass
    timer2 = threading.Timer(0.2, fun_timer2)
    timer2.start()
    
#button3 = Button(16)
#button2 = Button(20)
#button4 = Button(21)
#button1 = Button(26)

timer = threading.Timer(1, fun_timer)
timer.start()

timer2 = threading.Timer(0.1, fun_timer2)
timer2.start()

root = tk.Tk()
tk.Label(root, text="请在下框中输入倒计时时间\n注：其值必须为整数\n点击确定按键启动计时", font=("Helvetica", 16)).pack()
tt = tk.Text(root,
            width = 50,
            height = 1
            )
tt.pack()

wb = tk.StringVar()
tk.Label(root, textvariable = wb, font=("Helvetica", 8)).pack()
root.mainloop()

from gpiozero import LEDBoard,Button

from time import sleep

from signal import pause

import threading

import tkinter as tk

from tkinter import messagebox

DM = LEDBoard(2, 3, 4, 14, 17,27,22,24,active_high=False)

PX = LEDBoard(7,8,9,11,active_high=False)

M7G= [

(0, 0, 0, 0, 0,0, 0,0),

(1, 1, 1, 1,1, 1,0,0),

(0, 1, 1, 0, 0,0, 0,0),

(1, 1, 0, 1, 1,0, 1,0),

(1, 1, 1, 1,0, 0,1,0),

(0, 1, 1, 0,0, 1,1,0),

(1, 0, 1, 1,0, 1,1,0),

(1, 0, 1, 1,1, 1,1,0),

(1, 1, 1, 0,0, 0,0,0),

(1, 1, 1, 1,1, 1,1,0),

(1, 1, 1, 1,0, 1,1,0),

]

Led_Buf =[1,2,3,4]

n=0

def fun_timer():

#print('Hello Timer!')

global n

PX.off()#消隐

DM.value = M7G[Led_Buf[n]+1]

if n==2:

DM[7].on()

PX[n].on()

#sleep(1/(75*4))#75HZ

n+=1

n&=3

timer = threading.Timer((1/(200*4)), fun_timer)#100hz*4执行一次

timer.start()

v=5

def printhello():

#tt.insert(END, "hello")

global v

try:

v=(int)(tt.get('1.0','1.3'))

except :

wb.set("错误：请输入正确参数")

print(v)

def fun_timer2():

global v

if v>0:

Led_Buf[3]-=1

if Led_Buf[3]<0:

Led_Buf[3]=9

#v-=1

Led_Buf[0] = v//100%10

Led_Buf[1] = v//10%10

Led_Buf[2] = v%10

else:

Led_Buf[3]-=1

elif v==0:

#tk.messagebox.showwarning('Python Tkinter', '倒计时时间到！！！')

#v=-1

else:

pass

timer2 = threading.Timer(0.2, fun_timer2)

timer2.start()

#button3 = Button(16)

#button2 = Button(20)

#button4 = Button(21)

#button1 = Button(26)

timer = threading.Timer(1, fun_timer)

timer.start()

timer2 = threading.Timer(0.1, fun_timer2)

timer2.start()

root = tk.Tk()

tk.Label(root, text="请在下框中输入倒计时时间\n注：其值必须为整数\n点击确定按键启动计时", font=("Helvetica", 16)).pack()

tt = tk.Text(root,

width = 50,

height = 1

)

tt.pack()

wb = tk.StringVar()

tk.Label(root, textvariable = wb, font=("Helvetica", 8)).pack()

root.mainloop()

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20170922 （考核）基于TK的4位数码管倒计时器的制作

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