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25 lines
656 B
Python
25 lines
656 B
Python
# NeoPixel driver for MicroPython on ESP8266
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# MIT license; Copyright (c) 2016 Damien P. George
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from esp import neopixel_write
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class NeoPixel:
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def __init__(self, pin, n):
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self.pin = pin
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self.n = n
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self.buf = bytearray(n * 3)
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self.pin.init(pin.OUT, pin.PULL_NONE)
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def __setitem__(self, index, val):
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r, g, b = val
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self.buf[index * 3] = g
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self.buf[index * 3 + 1] = r
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self.buf[index * 3 + 2] = b
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def __getitem__(self, index):
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i = index * 3
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return self.buf[i + 1], self.buf[i], self.buf[i + 2]
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def write(self):
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neopixel_write(self.pin, self.buf, True)
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