33 lines
839 B
33 lines
839 B
import gex
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class Neopixel(gex.Unit):
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"""
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Raw access to a neopixel strip.
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"""
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def _type(self):
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return 'NPX'
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def get_len(self):
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""" Get the neopixel strip length """
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resp = self._query(10)
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pp = gex.PayloadParser(resp)
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return pp.u16()
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def load(self, colors, reverse=True, confirm=True):
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"""
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Load colors to the strip.
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The numbers are normally 0xRRGGBB
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If 'reverse' is false, they're treated as little-endian: 0xBBGGRR.
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"""
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pb = gex.PayloadBuilder(endian='big' if reverse else 'little')
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for c in colors:
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pb.u24(c)
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self._send(1, pb.close(), confirm=confirm)
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def clear(self, confirm=True):
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"""
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Reset the strip (set all to black)
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"""
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self._send(0, confirm=confirm)
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