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Implement grayscale support #4

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Merged
merged 6 commits into from
May 22, 2022
Merged

Implement grayscale support #4

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53bbdd8
Implement grayscale support
HDR May 19, 2022
282643c
Remove print used for debugging
HDR May 19, 2022
f662c7a
Update adafruit_uc8151d.py
HDR May 20, 2022
6c30c9b
Update adafruit_uc8151d.py
HDR May 20, 2022
8de8522
Add example for grayscale displays
HDR May 21, 2022
42c745b
Add Copyrighttext and license identifier
HDR May 21, 2022
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60 changes: 57 additions & 3 deletions adafruit_uc8151d.py
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Original file line number Diff line number Diff line change
Expand Up @@ -38,15 +38,65 @@
b"\x50\x01\x97" # CDI setting
)

_GRAYSCALE_START_SEQUENCE = (
b"\x04\x80\xc8" # Power on
b"\x00\x01\xbf" # Panel setting
b"\x50\x01\x97" # CDI setting
# Common voltage
b"\x20\x2a"
b"\x00\x0A\x00\x00\x00\x01"
b"\x60\x14\x14\x00\x00\x01"
b"\x00\x14\x00\x00\x00\x01"
b"\x00\x13\x0A\x01\x00\x01"
b"\x00\x00\x00\x00\x00\x00"
b"\x00\x00\x00\x00\x00\x00"
b"\x00\x00\x00\x00\x00\x00"
# White to White
b"\x21\x2a"
b"\x40\x0A\x00\x00\x00\x01"
b"\x90\x14\x14\x00\x00\x01"
b"\x10\x14\x0A\x00\x00\x01"
b"\xA0\x13\x01\x00\x00\x01"
b"\x00\x00\x00\x00\x00\x00"
b"\x00\x00\x00\x00\x00\x00"
b"\x00\x00\x00\x00\x00\x00"
# Black to White
b"\x22\x2a"
b"\x40\x0A\x00\x00\x00\x01"
b"\x90\x14\x14\x00\x00\x01"
b"\x00\x14\x0A\x00\x00\x01"
b"\x99\x0B\x04\x04\x01\x01"
b"\x00\x00\x00\x00\x00\x00"
b"\x00\x00\x00\x00\x00\x00"
b"\x00\x00\x00\x00\x00\x00"
# White to Black
b"\x23\x2a"
b"\x40\x0A\x00\x00\x00\x01"
b"\x90\x14\x14\x00\x00\x01"
b"\x00\x14\x0A\x00\x00\x01"
b"\x99\x0C\x01\x03\x04\x01"
b"\x00\x00\x00\x00\x00\x00"
b"\x00\x00\x00\x00\x00\x00"
b"\x00\x00\x00\x00\x00\x00"
# Black to Black
b"\x24\x2a"
b"\x80\x0A\x00\x00\x00\x01"
b"\x90\x14\x14\x00\x00\x01"
b"\x20\x14\x0A\x00\x00\x01"
b"\x50\x13\x01\x00\x00\x01"
b"\x00\x00\x00\x00\x00\x00"
b"\x00\x00\x00\x00\x00\x00"
b"\x00\x00\x00\x00\x00\x00"
)


_STOP_SEQUENCE = b"\x50\x01\xf7" b"\x07\x01\xA5" # CDI setting # Deep Sleep
# pylint: disable=too-few-public-methods
class UC8151D(displayio.EPaperDisplay):
r"""UC8151D driver

:param bus: The data bus the display is on
:param \**kwargs:
See below

:Keyword Arguments:
* *width* (``int``) --
Display width
Expand All @@ -57,14 +107,18 @@ class UC8151D(displayio.EPaperDisplay):
"""

def __init__(self, bus, **kwargs):
if kwargs.get("grayscale", False):
start_sequence = bytearray(_GRAYSCALE_START_SEQUENCE)
else:
start_sequence = bytearray(_START_SEQUENCE)
width = kwargs["width"]
height = kwargs["height"]
if "rotation" in kwargs and kwargs["rotation"] % 180 != 0:
width, height = height, width

super().__init__(
bus,
_START_SEQUENCE,
start_sequence,
_STOP_SEQUENCE,
**kwargs,
ram_width=128,
Expand Down