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adafruit_il0373.py
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adafruit_il0373.py
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# SPDX-FileCopyrightText: 2019 Scott Shawcroft for Adafruit Industries
#
# SPDX-License-Identifier: MIT
"""
`adafruit_il0373`
================================================================================
CircuitPython `displayio` driver for IL0373-based ePaper displays
* Author(s): Scott Shawcroft
Implementation Notes
--------------------
**Hardware:**
* `Adafruit 1.54" Tri-Color Display Breakout <https://www.adafruit.com/product/3625>`_
* `Adafruit 2.13" Tri-Color Display Breakout <https://www.adafruit.com/product/4086>`_
* `Adafruit Flexible 2.9" Black and White <https://www.adafruit.com/product/4262>`_
* `Adafruit Flexible 2.13" Black and White <https://www.adafruit.com/product/4243>`_
* `Adafruit 2.13" Tri-Color FeatherWing <https://www.adafruit.com/product/4128>`_
**Software and Dependencies:**
* Adafruit CircuitPython firmware (version 5+) for the supported boards:
https://github.com/adafruit/circuitpython/releases
"""
import displayio
try:
from typing import Optional
from displayio import FourWire
except ImportError:
pass
__version__ = "0.0.0+auto.0"
__repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_IL0373.git"
_START_SEQUENCE = (
b"\x01\x05\x03\x00\x2b\x2b\x09" # power setting
b"\x06\x03\x17\x17\x17" # booster soft start
b"\x04\x80\xc8" # power on and wait 200 ms
b"\x00\x01\x0f" # panel setting. Further filled in below.
b"\x50\x01\x37" # CDI setting
b"\x30\x01\x29" # PLL set to 150 Hz
b"\x61\x03\x00\x00\x00" # Resolution
b"\x82\x81\x12\x32" # VCM DC and delay 50ms
)
_GRAYSCALE_START_SEQUENCE = (
b"\x01\x05\x03\x00\x2b\x2b\x13" # power setting
b"\x06\x03\x17\x17\x17" # booster soft start
b"\x04\x80\xc8" # power on and wait 200 ms
b"\x00\x01\x2f" # panel setting. Further filled in below.
b"\x50\x01\x17" # CDI setting
b"\x30\x01\x3C" # PLL set to 50 Hz (M = 7, N = 4)
b"\x61\x03\x00\x00\x00" # Resolution
b"\x82\x81\x12\x32" # VCM DC and delay 50ms
# 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\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"
# 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\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"
# 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\x17" # CDI setting
b"\x82\x01\x00" # VCM DC to -0.10 V
b"\x02\x00" # Power off
)
# pylint: disable=too-few-public-methods
class IL0373(displayio.EPaperDisplay):
r"""IL0373 driver
:param bus: The data bus the display is on
:param bool swap_rams: Color and black rams/commands are swapped
:param border: If true, black border is drawn, if false white.
If None, previous color remains.
:param \**kwargs:
See below
:Keyword Arguments:
* *width* (``int``) --
Display width
* *height* (``int``) --
Display height
* *rotation* (``int``) --
Display rotation
* *color_bits_inverted* (``bool``) --
Invert color bit values
* *black_bits_inverted* (``bool``) --
Invert black bit values
"""
def __init__(
self,
bus: FourWire,
swap_rams: bool = False,
border: Optional[bool] = False,
**kwargs
) -> None:
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
start_sequence[26] = width & 0xFF
start_sequence[27] = (height >> 8) & 0xFF
start_sequence[28] = height & 0xFF
if swap_rams:
color_bits_inverted = kwargs.pop("color_bits_inverted", False)
write_color_ram_command = 0x10
black_bits_inverted = kwargs.pop("black_bits_inverted", True)
write_black_ram_command = 0x13
else:
write_black_ram_command = 0x10
write_color_ram_command = 0x13
color_bits_inverted = kwargs.pop("color_bits_inverted", True)
black_bits_inverted = kwargs.pop("black_bits_inverted", False)
if border is None:
start_sequence[20] |= 0b11 << 6 # Border remains unchanged
elif not border:
start_sequence[20] |= 0b01 << 6 # Border is White
if "highlight_color" not in kwargs:
start_sequence[17] |= 1 << 4 # Set BWR to only do black and white.
# Set the resolution to scan
if width > 128:
start_sequence[17] |= 0b11 << 6 # 160x296
elif height > 252 or width > 96:
start_sequence[17] |= 0b10 << 6 # 128x296
elif height > 230:
start_sequence[17] |= 0b01 << 6 # 96x252
else:
pass # 0b00 is 96x230
super().__init__(
bus,
start_sequence,
_STOP_SEQUENCE,
**kwargs,
ram_width=160,
ram_height=296,
busy_state=False,
write_black_ram_command=write_black_ram_command,
write_color_ram_command=write_color_ram_command,
black_bits_inverted=black_bits_inverted,
color_bits_inverted=color_bits_inverted,
refresh_display_command=0x12,
)