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-rw-r--r--esp8266/modules/neopixel.py32
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diff --git a/esp8266/modules/neopixel.py b/esp8266/modules/neopixel.py
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+# NeoPixel driver for MicroPython on ESP8266
+# 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):
+ self.pin = pin
+ self.n = n
+ self.bpp = bpp
+ self.buf = bytearray(n * bpp)
+ self.pin.init(pin.OUT)
+
+ 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, True)