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Format superhero power plant

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Craig Richardson 2018-05-14 18:14:16 +01:00
parent 6558031f90
commit 319c507a38
1 changed files with 25 additions and 25 deletions
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Superhero_Power_Plant/Superhero_Power_Plant.py
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@ -1,36 +1,36 @@
import board import board
import neopixel import neopixel
import time
try: try:
import urandom as random # for v1.0 API support import urandom as random # for v1.0 API support
except ImportError: except ImportError:
import random import random
numpix = 17 # Number of NeoPixels num_pix = 17 # Number of NeoPixels
pixpin = board.D1 # Pin where NeoPixels are connected pix_pin = board.D1 # Pin where NeoPixels are connected
strip = neopixel.NeoPixel(pixpin, numpix) strip = neopixel.NeoPixel(pix_pin, num_pix)
minAlpha = 0.1 # Minimum brightness min_alpha = 0.1 # Minimum brightness
maxAlpha = 0.4 # Maximum brightness max_alpha = 0.4 # Maximum brightness
alpha = (minAlpha + maxAlpha) / 2 # Start in middle alpha = (min_alpha + max_alpha) / 2 # Start in middle
alphaDelta = 0.01 # Amount to change brightness each time through loop alpha_delta = 0.01 # Amount to change brightness each time through loop
alphaUp = True # If True, brightness increasing, else decreasing alpha_up = True # If True, brightness increasing, else decreasing
strip.fill([0, 0, 255]) # Fill blue, or change to R,G,B of your liking strip.fill([0, 0, 255]) # Fill blue, or change to R,G,B of your liking
while True: # Loop forever... while True: # Loop forever...
if random.randint(1, 5) == 5: # 1-in-5 random chance if random.randint(1, 5) == 5: # 1-in-5 random chance
alphaUp = not alphaUp # of reversing direction alpha_up = not alpha_up # of reversing direction
if alphaUp: # Increasing brightness? if alpha_up: # Increasing brightness?
alpha += alphaDelta # Add some amount alpha += alpha_delta # Add some amount
if alpha >= maxAlpha: # At or above max? if alpha >= max_alpha: # At or above max?
alpha = maxAlpha # Limit to max alpha = max_alpha # Limit to max
alphaUp = False # and switch direction alpha_up = False # and switch direction
else: # Else decreasing brightness else: # Else decreasing brightness
alpha -= alphaDelta # Subtract some amount alpha -= alpha_delta # Subtract some amount
if alpha <= minAlpha: # At or below min? if alpha <= min_alpha: # At or below min?
alpha = minAlpha # Limit to min alpha = min_alpha # Limit to min
alphaUp = True # and switch direction alpha_up = True # and switch direction
strip.brightness = alpha # Set brightness to 0.0 to 1.0 strip.brightness = alpha # Set brightness to 0.0 to 1.0
strip.write() # and issue data to LED strip strip.write() # and issue data to LED strip