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- # NeoPixel driver for MicroPython on ESP32
- # MIT license; Copyright (c) 2016 Damien P. George
- from esp import neopixel_write
- class NeoPixel:
- ORDER = (1, 0, 2, 3)
-
- def __init__(self, pin, n, bpp=3, timing=0):
- self.pin = pin
- self.n = n
- self.bpp = bpp
- self.buf = bytearray(n * bpp)
- self.pin.init(pin.OUT)
- self.timing = timing
- def __setitem__(self, index, val):
- offset = index * self.bpp
- for i in range(self.bpp):
- self.buf[offset + self.ORDER[i]] = val[i]
- def __getitem__(self, index):
- offset = index * self.bpp
- return tuple(self.buf[offset + self.ORDER[i]]
- for i in range(self.bpp))
- def fill(self, color):
- for i in range(self.n):
- self[i] = color
- def write(self):
- neopixel_write(self.pin, self.buf, self.timing)
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