68 lines
2.0 KiB
Python
68 lines
2.0 KiB
Python
from time import sleep
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import neopixel
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import board
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import logger
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import pattern
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def defaultPattern(n, t, pv):
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return (t % 255, 255, 255)
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class LightStrip:
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def __init__(self, data_pin=board.D18, string_length=300, brightness=0.7, pixel_order=neopixel.GRB, max_changes=5):
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self.data_pin = data_pin
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self.np = neopixel.NeoPixel(
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self.data_pin, string_length, brightness=brightness, auto_write=True, pixel_order=pixel_order)
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self.pattern = defaultPattern
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self.cur_tick = 0
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self.cur_index = 0
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self.max_changes = max_changes
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self.cur_pattern = []
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def get_light_level(self):
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return self.np.brightness
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def set_light_level(self, level):
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self.np.brightness = level
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def set_pattern(self, pattern_callback):
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self.pattern = pattern_callback
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def get_next_pattern_tick(self):
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np = self.np
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n = np.n
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t = self.cur_tick
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if not len(self.cur_pattern) >= n - 1:
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li = [(255, 255, 255)] * (n - len(self.cur_pattern))
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self.cur_pattern.extend(li)
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for i in range(n):
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self.cur_pattern[i] = self.pattern(i, t, np[i])
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self.cur_tick = t + 1
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def tick(self):
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np = self.np
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t = self.cur_tick
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n = np.n
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if not len(self.cur_pattern) >= n - 1:
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self.get_next_pattern_tick()
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changes = 0
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ind = self.cur_index
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for i in range(ind, n):
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col = self.cur_pattern[i]
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self.cur_index = i
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logger.debug("TEST VALUES: np {} col {} same {}".format(
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tuple(np[i]), col, tuple(np[i]) != col))
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if tuple(np[i]) != col:
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changes = changes + 1
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np[i] = col
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logger.debug(
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"CHANGE COLOR OF PIXEL {} TO {} ON TICK {}".format(i, col, t))
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if changes >= self.max_changes:
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break
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if self.cur_index >= (n-1):
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self.get_next_pattern_tick()
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self.cur_index = 0
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