77 lines
2.1 KiB
Python
77 lines
2.1 KiB
Python
# SPDX-FileCopyrightText: 2019 Scott Shawcroft for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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"""
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`adafruit_ssd1608`
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================================================================================
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CircuitPython `displayio` driver for SSD1608-based ePaper displays
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* Author(s): Scott Shawcroft
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Implementation Notes
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--------------------
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**Hardware:**
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* `Adafruit 1.54" Monochrome ePaper Display Breakout <https://www.adafruit.com/product/4196>`_
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**Software and Dependencies:**
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* Adafruit CircuitPython firmware (version 5+) for the supported boards:
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https://github.com/adafruit/circuitpython/releases
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"""
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import epaperdisplay
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try:
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import typing
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import fourwire
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except ImportError:
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pass
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__version__ = "0.0.0+auto.0"
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__repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_SSD1608.git"
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_START_SEQUENCE = (
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b"\x12\x00" # Software reset
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b"\x01\x03\x00\x00\x00" # driver output control
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b"\x3a\x01\x1b" # Set dummy line period
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b"\x3b\x01\x0b" # Set gate line width
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b"\x11\x01\x03" # Data entry sequence
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b"\x2c\x01\x70" # Vcom Voltage
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b"\x32\x1e\x02\x02\x01\x11\x12\x12\x22\x22\x66\x69\x69\x59\x58\x99\x99\x88\x00\x00\x00\x00\xf8"
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b"\xb4\x13\x51\x35\x51\x51\x19\x01\x00" # LUT
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b"\x22\x01\xc7" # Set DISP ctrl2
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)
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_STOP_SEQUENCE = b"\x10\x01\x01" # Enter deep sleep
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class SSD1608(epaperdisplay.EPaperDisplay):
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"""SSD1608 driver"""
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def __init__(self, bus: fourwire.FourWire, **kwargs) -> None:
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start_sequence = bytearray(_START_SEQUENCE)
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width = kwargs["width"]
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start_sequence[4] = (width - 1) & 0xFF
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start_sequence[5] = (width - 1) >> 8
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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=240,
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ram_height=320,
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set_column_window_command=0x44,
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set_row_window_command=0x45,
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set_current_column_command=0x4E,
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set_current_row_command=0x4F,
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write_black_ram_command=0x24,
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refresh_display_command=0x20,
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)
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