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Fix for issue #20 #23

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Merged
merged 2 commits into from
Aug 31, 2018
Merged

Fix for issue #20 #23

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b56f8b6
fix for issue #20
Aug 30, 2018
7dd810a
all paths have return
Aug 30, 2018
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13 changes: 7 additions & 6 deletions adafruit_ht16k33/ht16k33.py
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Original file line number Diff line number Diff line change
Expand Up @@ -121,15 +121,16 @@ def fill(self, color):
self.show()

def _pixel(self, x, y, color=None):
mask = 1 << x
addr = 2*y + x // 8
mask = 1 << x % 8
if color is None:
return bool((self._buffer[y + 1] | self._buffer[y + 2] << 8) & mask)
return bool(self._buffer[addr + 1] & mask)
if color:
self._buffer[(y * 2) + 1] |= mask & 0xff
self._buffer[(y * 2) + 2] |= mask >> 8
# set the bit
self._buffer[addr + 1] |= mask
else:
self._buffer[(y * 2) + 1] &= ~(mask & 0xff)
self._buffer[(y * 2) + 2] &= ~(mask >> 8)
# clear the bit
self._buffer[addr + 1] &= ~mask
if self._auto_write:
self.show()
return None
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