from machine import Pin
import time
import network
import urequests

#数码管练习
a = Pin(5,Pin.OUT)
b = Pin(18,Pin.OUT)
c = Pin(22,Pin.OUT)
d = Pin(21,Pin.OUT)
e = Pin(19,Pin.OUT)
f = Pin(4,Pin.OUT,value=1)
g = Pin(15,Pin.OUT)
dp = Pin(23,Pin.OUT)

# Common --> Anode: 0点亮，1熄灭
segments = [a,b,c,d,e,f,g,dp]

# 数字表格且dp常暗（阳极）
SEG_TABLE = {
            0: [0, 0, 0, 0, 0, 0, 1, 1],
            1: [1, 0, 0, 1, 1, 1, 1, 1],
            2: [0, 0, 1, 0, 0, 1, 0, 1],
            3: [0, 0, 0, 0, 1, 1, 0, 1],
            4: [1, 0, 0, 1, 1, 0, 0, 1],
            5: [0, 1, 0, 0, 1, 0, 0, 1],
            6: [0, 1, 0, 0, 0, 0, 0, 1],
            7: [0, 0, 0, 1, 1, 1, 1, 1],
            8: [0, 0, 0, 0, 0, 0, 0, 1],
            9: [0, 0, 0, 0, 1, 0, 0, 1],
        } # dp默认熄灭

def show_digit(num, show_dp=False):      
    if num not in SEG_TABLE:
        return
    else:
        pattern = SEG_TABLE[num].copy()
        pattern[7] = 0 if show_dp else 1
        for pin, val in zip(segments, pattern):
            pin.value(val)

def clear():
    """熄灭所有段"""
    for pin in segments:
        pin.value(1)  # 共阳极：1 为灭

clear()    
while True:
    for i in range(9,-1,-1):
        show_digit(i,True)
        time.sleep(1)


'''
#在有限范围内进行闪烁
lu_pin = Pin(2,Pin.OUT)
start_time = time.time()
duration = 10 #持续时间定义
while time.time() - start_time <= duration:
    lu_pin.on()
    time.sleep(0.5)
    lu_pin.off()
    time.sleep(0.5)
lu_pin.value(0)
print('时间已到，停止闪烁')
'''
'''
# 按钮控制LED亮灭
lu_pin = Pin(2,Pin.OUT,value=0)
lu_button = Pin(14,Pin.IN, Pin.PULL_DOWN)

def button_irq(lu_button):
    time.sleep_ms(10)
    if lu_button.value() == 1:
        lu_pin.value(not lu_pin.value())

lu_button.irq(button_irq,Pin.IRQ_RISING)
'''
'''
status = 0
while True:
    if lu_button.value() == 1:
        time.sleep_ms(80) #消抖延时
        if lu_button.value() == 1 and status == 0:
            lu_pin.value(not lu_pin.value()) #直接去反
            status = 1           
    else:
        status = 0

while True:
    lu_pin.on()
    time.sleep(0.5)
    lu_pin.off()
    time.sleep(0.5)
'''