76 lines
2.1 KiB
Python
76 lines
2.1 KiB
Python
# SPDX-FileCopyrightText: 2017 Scott Shawcroft, written for Adafruit Industries
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# SPDX-FileCopyrightText: Copyright (c) 2021 Melissa LeBlanc-Williams for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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"""
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`adafruit_uc8151d`
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================================================================================
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CircuitPython `displayio` driver for US8151D-based ePaper displays
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* Author(s): Melissa LeBlanc-Williams
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Implementation Notes
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--------------------
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**Hardware:**
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* `Adafruit Flexible 2.9" Black and White <https://www.adafruit.com/product/4262>`_
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**Software and Dependencies:**
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* Adafruit CircuitPython firmware for the supported boards:
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https://github.com/adafruit/circuitpython/releases
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"""
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import displayio
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__version__ = "0.0.0-auto.0"
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__repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_UC8151D.git"
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_START_SEQUENCE = (
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# b"\x01\x05\x03\x00\x2b\x2b\x09" # power setting
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# b"\x06\x03\x17\x17\x17" # booster soft start
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b"\x04\x80\xc8" # power on and wait 10 ms
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b"\x00\x01\x1f" # panel setting. Further filled in below.
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b"\x50\x01\x97" # CDI setting
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)
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_STOP_SEQUENCE = b"\x50\x01\xf7" b"\x07\x01\xA5" # CDI setting # Deep Sleep
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# pylint: disable=too-few-public-methods
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class UC8151D(displayio.EPaperDisplay):
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r"""UC8151D driver
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:param bus: The data bus the display is on
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:param \**kwargs:
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See below
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:Keyword Arguments:
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* *width* (``int``) --
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Display width
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* *height* (``int``) --
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Display height
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* *rotation* (``int``) --
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Display rotation
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"""
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def __init__(self, bus, **kwargs):
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width = kwargs["width"]
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height = kwargs["height"]
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if "rotation" in kwargs and kwargs["rotation"] % 180 != 0:
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width, height = height, width
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super().__init__(
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bus,
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_START_SEQUENCE,
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_STOP_SEQUENCE,
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**kwargs,
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ram_width=128,
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ram_height=296,
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busy_state=False,
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write_black_ram_command=0x13,
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write_color_ram_command=0x10,
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refresh_display_command=0x12,
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)
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