【发布时间】：2020-11-27 18:03:32
【问题描述】：
我一直在做一个项目，使用 circuitpython 和 neopixels 来学习如何使用板载计时器。我的功能待办事项列表已经完成了 90%，现在我担心我可能需要重新构建整个事情才能获得最后的 10%。
该项目旨在以萤火虫图案闪烁 n 个新像素。每种萤火虫图案都有一个功能。在脚本开始时，我创建了与灯光一样多的变量。然后我循环遍历它们，根据计时器打开或关闭灯。
我设法手动完成所有这些（根据有多少灯创建“变量_1，变量_2，...”），现在我尝试根据灯的数量自动生成变量的数量。我还想在每次脚本启动时随机分配闪烁模式给灯光，但我认为这是最后一部分。
从下面的代码中可以看出，我已经设法根据顶部的灯光数量自动创建变量。但是，当我尝试在底部的 while 循环中做类似的事情时，事情就崩溃了。我的问题基本上是“这就是存在类的原因，所以重写整个事情以使用类”？还是有其他方法可以使这项工作？
谢谢！
#https://www.nps.gov/grsm/learn/nature/firefly-flash-patterns.htm
import board
import digitalio
import time
import neopixel
import random
#variables to hold the color that the LED will blink
neo_r = 255
neo_g = 255
neo_b = 0
# variable to hold the number of neopixels
number_of_lights = 7
#create the neopixel. auto_write=True avoids having to push changes (at the cost of speed, which probably doesn't matter here)
pixels = neopixel.NeoPixel(board.NEOPIXEL, number_of_lights, brightness = 0.2, auto_write=False)
# automatically spins up the seed reset times for each light
reset_time_dict = {}
# sets the seeds to zero
for i in range(0, number_of_lights):
var_name = 'resetTime' + str(i)
reset_time_dict[var_name] = time.monotonic()
print(reset_time_dict)
def on(light_num):
pixels[light_num] = (neo_r, neo_g, neo_b)
pixels.show()
def off(light_num):
pixels[light_num] = (0, 0, 0)
pixels.show()
def brimleyi(reset_time_input, light_number):
#calculates how much time has passed since the new zero
time_from_zero = time.monotonic() - reset_time_input
# creates the carry over reset_time variable so that it can be returned even if it is not updated in the last if statement
reset_time = reset_time_input
# on flash
if 5 <= time_from_zero <= 5.5:
on(light_number)
elif 15 <= time_from_zero <= 15.5:
on(light_number)
# reset (includes 10 seconds after second flash - 5 on the back end and 5 on the front end)
elif time_from_zero > 20:
off(light_number)
reset_time = time.monotonic() + random.uniform(-3, 3)
# all of the off times
else:
off(light_number)
return reset_time
def macdermotti (reset_time_input, light_number):
#calculates how much time has passed since the new zero
time_from_zero = time.monotonic() - reset_time_input
# creates the carry over reset_time variable so that it can be returned even if it is not updated in the last if statement
reset_time = reset_time_input
# on flash
if 3 <= time_from_zero <= 3.5:
on(light_number)
elif 5 <= time_from_zero <= 5.5:
on(light_number)
elif 10 <= time_from_zero <= 10.5:
on(light_number)
elif 12 <= time_from_zero <= 12.5:
on(light_number)
elif time_from_zero > 14.5:
off(light_number)
reset_time = time.monotonic() + random.uniform(-3, 3)
else:
off(light_number)
return reset_time
def carolinus(reset_time_input, light_number):
time_from_zero = time.monotonic() - reset_time_input
# creates the carry over reset_time variable so that it can be returned even if it is not updated in the last if statement
reset_time = reset_time_input
if 0 <= time_from_zero <= 0.5:
on(light_number)
elif 1 <= time_from_zero <= 1.5:
on(light_number)
elif 2 <= time_from_zero <= 2.5:
on(light_number)
elif 3 <= time_from_zero <= 3.5:
on(light_number)
elif 4 <= time_from_zero <= 4.5:
on(light_number)
elif 5 <= time_from_zero <= 5.5:
on(light_number)
elif 6 <= time_from_zero <= 6.5:
on(light_number)
elif time_from_zero >= 15:
off(light_number)
reset_time = time.monotonic()
else:
off(light_number)
return reset_time
while True:
reset_time_dict["resetTime2"] = brimleyi(reset_time_dict["resetTime2"], 2)
reset_time_dict["resetTime3"] = brimleyi(reset_time_dict["resetTime3"], 3)
reset_time_dict["resetTime4"] = macdermotti(reset_time_dict["resetTime4"], 4)
reset_time_dict["resetTime5"] = carolinus(reset_time_dict["resetTime5"], 5)
reset_time_dict["resetTime6"] = carolinus(reset_time_dict["resetTime6"], 6)
#briefly pauses the loop to avoid crashing the USB bus. Also makes it easier to see what is happening.
time.sleep(0.25)
【问题讨论】：
标签： python while-loop python-class adafruit-circuitpython