20170904 （第5课）树莓派PYPI- 数码管

练习1，数码管全关全断

from gpiozero import LEDBoard
from time import sleep
from signal import pause

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

M7G= [
(0, 0, 0, 0, 0, 0, 0),#M7G[0],全灭
(1, 1, 1, 1, 1, 1, 1),#M7G[1],全亮
(0, 1, 0, 1, 0, 1, 0),#M7G[2]
(1, 0, 1, 0, 1, 0, 1),#M7G[3]
]

while True:
leds.value = M7G[0]
sleep(1)
leds.value = M7G[1]
sleep(1)
leds.value = M7G[2]
sleep(1)
leds.value = M7G[3]
sleep(1)
leds.value = M7G[1]
sleep(1)

from gpiozero import LEDBoard

from time import sleep

from signal import pause

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

M7G= [

(0, 0, 0, 0, 0, 0, 0),#M7G[0],全灭

(1, 1, 1, 1, 1, 1, 1),#M7G[1],全亮

(0, 1, 0, 1, 0, 1, 0),#M7G[2]

(1, 0, 1, 0, 1, 0, 1),#M7G[3]

]

while True:

leds.value = M7G[0]

sleep(1)

leds.value = M7G[1]

sleep(1)

leds.value = M7G[2]

sleep(1)

leds.value = M7G[3]

sleep(1)

leds.value = M7G[1]

sleep(1)

测试2：数码管灰度显示

from gpiozero import LEDBoard
from time import sleep
from signal import pause

leds = LEDBoard(2, 3, 4, 14, 17,27,22,pwm=True, active_high=False)

M7G= [
(0, 0, 0, 0, 0, 0, 0),
(1, 1, 1, 1, 1, 1, 1),
(0.5, 0.5, 0.5, 0.5,0.5,0.5,0.5),
(0.1, 0.3, 0.5, 0.7,0.9, 0,1)
]

while True:
leds.value = M7G[1]
sleep(1)
leds.value = M7G[0]
sleep(1)
leds.value = M7G[2]
sleep(1)
leds.value = M7G[0]
sleep(1)
leds.value = M7G[3]
sleep(1)
leds.value = M7G[0]
sleep(1)

from gpiozero import LEDBoard

from time import sleep

from signal import pause

leds = LEDBoard(2, 3, 4, 14, 17,27,22,pwm=True, active_high=False)

M7G= [

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

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

(0.5, 0.5, 0.5, 0.5,0.5,0.5,0.5),

(0.1, 0.3, 0.5, 0.7,0.9, 0,1)

]

while True:

leds.value = M7G[1]

sleep(1)

leds.value = M7G[0]

sleep(1)

leds.value = M7G[2]

sleep(1)

leds.value = M7G[0]

sleep(1)

leds.value = M7G[3]

sleep(1)

leds.value = M7G[0]

sleep(1)

测试3：数码管逐笔段点亮

from gpiozero import LEDBoard
from time import sleep
from signal import pause

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

#leds.blink()

while True :
for n in range(0,7) :
leds[n].on()
sleep(1)
#leds[n].off()
leds.off()
sleep(1)

from gpiozero import LEDBoard

from time import sleep

from signal import pause

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

#leds.blink()

while True :

for n in range(0,7) :

leds[n].on()

sleep(1)

#leds[n].off()

leds.off()

sleep(1)

另一种循环方法for led in leds :

from gpiozero import LEDBoard
from time import sleep
from signal import pause
leds = LEDBoard(2, 3, 4, 14, 17,27,22,active_high=False)
while True :
leds.on()
sleep(1)
for led in leds :
led.off()
sleep(1)
sleep(1)

from gpiozero import LEDBoard

from time import sleep

from signal import pause

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

while True :

leds.on()

sleep(1)

for led in leds :

led.off()

sleep(1)

测试4：数码管按键

from gpiozero import LEDBoard,Button
from time import sleep
from signal import pause

leds = LEDBoard(2, 3, 4, 14, 17,27,22,active_high=False)
button = Button(21)

val = 0

def zheng():
for n in range(0,7) :
leds[n].on()
sleep(1)
leds[n].off()
leds.off()
sleep(1)

def fan():
for n in range(0,7) :
leds[6 - n].on()
sleep(1)
leds[6 - n].off()
leds.off()
sleep(1)

while True:
button.wait_for_press()
zheng()
button.wait_for_release()
fan()

pause()

from gpiozero import LEDBoard,Button

from time import sleep

from signal import pause

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

button = Button(21)

val = 0

def zheng():

for n in range(0,7) :

leds[n].on()

sleep(1)

leds[n].off()

leds.off()

sleep(1)

def fan():

for n in range(0,7) :

leds[6 - n].on()

sleep(1)

leds[6 - n].off()

leds.off()

sleep(1)

while True:

button.wait_for_press()

zheng()

button.wait_for_release()

fan()

pause()

测试5：数码管按键2

from gpiozero import LEDBoard,Button
from time import sleep
from signal import pause

leds = LEDBoard(2, 3, 4, 14, 17,27,22,active_high=False)
button = Button(21)

def zheng():
for led in leds :
led.on()
sleep(1)
led.off()
leds.off()
sleep(1)

def fan():
for n in range(0,7) :
leds[6 - n].on()
sleep(1)
leds[6 - n].off()
leds.off()
sleep(1)

while True:
button.wait_for_press()
while(button.value):
zheng()
button.wait_for_release()
while(not button.value):
fan()
pause()

from gpiozero import LEDBoard,Button

from time import sleep

from signal import pause

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

button = Button(21)

def zheng():

for led in leds :

led.on()

sleep(1)

led.off()

leds.off()

sleep(1)

def fan():

for n in range(0,7) :

leds[6 - n].on()

sleep(1)

leds[6 - n].off()

leds.off()

sleep(1)

while True:

button.wait_for_press()

while(button.value):

zheng()

button.wait_for_release()

while(not button.value):

fan()

pause()

测试2：数码管tk按键

from gpiozero import LEDBoard
from time import sleep
from signal import pause
from tkinter import *

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

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

]
val=0
leds.value = M7G[val]

#定义Button的回调函数
def helloButton():
global val
if val>=10:
val=0
else :
val+=1
leds.value = M7G[val]

root = Tk()
#通过command属性来指定Button的回调函数
Button(root,text = 'LED Button',command = helloButton).pack()
root.mainloop()#TK的主程序循环

from gpiozero import LEDBoard

from time import sleep

from signal import pause

from tkinter import *

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

M7G= [

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

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

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

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

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

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

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

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

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

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

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

]

val=0

leds.value = M7G[val]

#定义Button的回调函数

def helloButton():

global val

if val>=10:

val=0

else :

val+=1

leds.value = M7G[val]

root = Tk()

#通过command属性来指定Button的回调函数

Button(root,text = 'LED Button',command = helloButton).pack()

root.mainloop()#TK的主程序循环

测试7：数码管TK滚动条

from gpiozero import LEDBoard
from time import sleep
from signal import pause
from tkinter import *

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

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

leds.value = M7G[0]

def ledset(text):
leds.value = M7G[int(text)+1]

root = Tk()
Scale(root,
from_ = 0, #设置最大值
to = 9, #设置最小值
resolution = 1, #设置步距值
orient = HORIZONTAL, #设置水平方向
command = ledset #设置回调函数
).pack()
root.mainloop()