Micropython實例之TPYBoardv102位數(shù)碼管顯示實驗

ID:130183 · 發(fā)表于 2018-6-19 15:39

所需原器件

1 TPYBoard v102 一塊
2 四位數(shù)碼管一個
3 杜邦線若干
4 面包板一塊（為了接線方便，可不用）

接線圖
四位數(shù)碼管引腳圖

開發(fā)板與四位數(shù)碼管針腳對應：

程序源代碼:
import pyb

from pyb import Pin

#數(shù)碼管a~g dp對應的開發(fā)板引腳

d_Pins=[Pin(i,Pin.OUT_PP) for i in ['X1','X2','X3','X4','X5','X6','X7','X8']]

#數(shù)碼管位段1 2 3 4對應的引腳

w_Pins=[Pin(i,Pin.OUT_PP) for i in ['Y9','Y10','Y11','Y12']]

number={

'0':

[0,0,0,0,0,0,1,1],#0

'1':

[1,1,1,1,0,0,1,1],#1

'2':

[0,0,1,0,0,1,0,1],#2

'3':

[0,0,0,0,1,1,0,1],#3

'4':

[1,0,0,1,1,0,0,1],#4

'5':

[0,1,0,0,1,0,0,1],#5

'6':

[0,1,0,0,0,0,0,1],#6

'7':

[0,0,0,1,1,1,1,1],#7

'8':

[0,0,0,0,0,0,0,1],#8

'9':

[0,0,0,0,1,0,0,1],#9

}

def display(num,dp):

global number

count=0

for pin in d_Pins:#顯示num的值

      pin.value(number[num][count])

      count+=1

if dp==1:

      d_Pins[7].value(0)

def clear():

for i in w_Pins:

      i.value(0)

for i in d_Pins:

      i.value(1)

def showData(num):

#分割出數(shù)值的百位、千位、個位和小數(shù)位的值

d_num=num

location=d_num.find('.')

if location>0:

      d_num=d_num.replace('.','')

      while len(d_num)<4:

         d_num='0'+d_num

      for i in range(0,4):

         pyb.udelay(2000)

         clear()

         w_Pins[3-i].value(1)

         if i==location-1:

            display(d_num[i],1)

         else:

            display(d_num[i],0)

if location<0:

      for i in range(0,4):

         pyb.udelay(2000)

         clear()

         w_Pins[3-i].value(1)

         display(d_num[i],0)

while True:

num='9016'

showData(num)
復制代碼

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