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Merge pull request #79 from makermelissa/main

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Added EK79686 Support
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Melissa LeBlanc-Williams 2023-07-07 09:50:54 -07:00 committed by GitHub
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166
adafruit_epd/ek79686.py Normal file
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@ -0,0 +1,166 @@
# SPDX-FileCopyrightText: 2018 Dean Miller for Adafruit Industries
#
# SPDX-License-Identifier: MIT
"""
`adafruit_epd.EK79686` - Adafruit EK79686 - ePaper display driver
====================================================================================
CircuitPython driver for Adafruit EK79686 display breakouts
* Author(s): Melissa LeBlanc-Williams
"""
import time
from micropython import const
import adafruit_framebuf
from adafruit_epd.epd import Adafruit_EPD
try:
"Needed for type annotations"
import typing # pylint: disable=unused-import
from typing_extensions import Literal
from busio import SPI
from digitalio import DigitalInOut
except ImportError:
pass
__version__ = "0.0.0+auto.0"
__repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_EPD.git"
_EK79686_PANEL_SETTING = const(0x00)
_EK79686_POWER_SETTING = const(0x01)
_EK79686_POWER_OFF = const(0x02)
_EK79686_POWER_OFF_SEQUENCE = const(0x03)
_EK79686_POWER_ON = const(0x04)
_EK79686_POWER_ON_MEASURE = const(0x05)
_EK79686_BOOSTER_SOFT_START = const(0x06)
_EK79686_DEEP_SLEEP = const(0x07)
_EK79686_DTM1 = const(0x10)
_EK79686_DATA_STOP = const(0x11)
_EK79686_DISPLAY_REFRESH = const(0x12)
_EK79686_DTM2 = const(0x13)
_EK79686_PDTM1 = const(0x14)
_EK79686_PDTM2 = const(0x15)
_EK79686_PDRF = const(0x16)
_EK79686_LUT1 = const(0x20)
_EK79686_LUTWW = const(0x21)
_EK79686_LUTBW = const(0x22)
_EK79686_LUTWB = const(0x23)
_EK79686_LUTBB = const(0x24)
_EK79686_PLL = const(0x30)
_EK79686_CDI = const(0x50)
_EK79686_RESOLUTION = const(0x61)
_EK79686_VCM_DC_SETTING = const(0x82)
class Adafruit_EK79686(Adafruit_EPD):
"""driver class for Adafruit EK79686 ePaper display breakouts"""
# pylint: disable=too-many-arguments
def __init__(
self,
width: int,
height: int,
spi: SPI,
*,
cs_pin: DigitalInOut,
dc_pin: DigitalInOut,
sramcs_pin: DigitalInOut,
rst_pin: DigitalInOut,
busy_pin: DigitalInOut
) -> None:
super().__init__(
width, height, spi, cs_pin, dc_pin, sramcs_pin, rst_pin, busy_pin
)
self._buffer1_size = int(width * height / 8)
self._buffer2_size = int(width * height / 8)
if sramcs_pin:
self._buffer1 = self.sram.get_view(0)
self._buffer2 = self.sram.get_view(self._buffer1_size)
else:
self._buffer1 = bytearray((width * height) // 8)
self._buffer2 = bytearray((width * height) // 8)
# since we have *two* framebuffers - one for red and one for black
# we dont subclass but manage manually
self._framebuf1 = adafruit_framebuf.FrameBuffer(
self._buffer1, width, height, buf_format=adafruit_framebuf.MHMSB
)
self._framebuf2 = adafruit_framebuf.FrameBuffer(
self._buffer2, width, height, buf_format=adafruit_framebuf.MHMSB
)
self.set_black_buffer(0, True)
self.set_color_buffer(1, False)
self._single_byte_tx = False
def begin(self, reset: bool = True) -> None:
"""Begin communication with the display and set basic settings"""
if reset:
self.hardware_reset()
self.power_down()
def busy_wait(self) -> None:
"""Wait for display to be done with current task, either by polling the
busy pin, or pausing"""
if self._busy:
while not self._busy.value:
time.sleep(0.01)
else:
time.sleep(0.5)
def power_up(self) -> None:
"""Power up the display in preparation for writing RAM and updating"""
self.hardware_reset()
time.sleep(0.2)
self.command(_EK79686_PANEL_SETTING, bytearray([0x0F])) # LUT from OTP 176x264
self.command(0x4D, bytearray([0xAA])) # FITI cmd (???)
self.command(0x87, bytearray([0x28]))
self.command(0x84, bytearray([0x00]))
self.command(0x83, bytearray([0x05]))
self.command(0xA8, bytearray([0xDF]))
self.command(0xA9, bytearray([0x05]))
self.command(0xB1, bytearray([0xE8]))
self.command(0xAB, bytearray([0xA1]))
self.command(0xB9, bytearray([0x10]))
self.command(0x88, bytearray([0x80]))
self.command(0x90, bytearray([0x02]))
self.command(0x86, bytearray([0x15]))
self.command(0x91, bytearray([0x8D]))
self.command(0xAA, bytearray([0x0F]))
self.command(_EK79686_POWER_ON)
self.busy_wait()
def power_down(self) -> None:
"""Power down the display - required when not actively displaying!"""
self.command(_EK79686_POWER_OFF, bytearray([0x17]))
self.busy_wait()
if self._rst: # Only deep sleep if we can get out of it
self.command(_EK79686_DEEP_SLEEP, bytearray([0xA5]))
def update(self) -> None:
"""Update the display from internal memory"""
self.command(_EK79686_DISPLAY_REFRESH)
self.busy_wait()
if not self._busy:
time.sleep(16) # wait 16 seconds
def write_ram(self, index: Literal[0, 1]) -> int:
"""Send the one byte command for starting the RAM write process. Returns
the byte read at the same time over SPI. index is the RAM buffer, can be
0 or 1 for tri-color displays."""
if index == 0:
return self.command(_EK79686_DTM1, end=False)
if index == 1:
return self.command(_EK79686_DTM2, end=False)
raise RuntimeError("RAM index must be 0 or 1")
def set_ram_address(
self, x: int, y: int
) -> None: # pylint: disable=unused-argument, no-self-use
"""Set the RAM address location, not used on this chipset but required by
the superclass"""
return # on this chip it does nothing

2
examples/epd_bitmap.py
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@ -13,6 +13,7 @@ from adafruit_epd.ssd1675 import Adafruit_SSD1675 # pylint: disable=unused-impo
from adafruit_epd.ssd1680 import Adafruit_SSD1680 # pylint: disable=unused-import
from adafruit_epd.ssd1681 import Adafruit_SSD1681 # pylint: disable=unused-import
from adafruit_epd.uc8151d import Adafruit_UC8151D # pylint: disable=unused-import
from adafruit_epd.ek79686 import Adafruit_EK79686 # pylint: disable=unused-import
# create the spi device and pins we will need
@ -30,6 +31,7 @@ print("Creating display")
# display = Adafruit_SSD1680(122, 250, # 2.13" HD Tri-color display
# display = Adafruit_SSD1681(200, 200, # 1.54" HD Tri-color display
# display = Adafruit_IL91874(176, 264, # 2.7" Tri-color display
# display = Adafruit_EK79686(176, 264, # 2.7" Tri-color display
# display = Adafruit_IL0373(152, 152, # 1.54" Tri-color display
# display = Adafruit_UC8151D(128, 296, # 2.9" mono flexible display
# display = Adafruit_IL0373(128, 296, # 2.9" Tri-color display

2
examples/epd_blinka.py
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@ -18,6 +18,7 @@ from adafruit_epd.ssd1675b import Adafruit_SSD1675B # pylint: disable=unused-im
from adafruit_epd.ssd1680 import Adafruit_SSD1680 # pylint: disable=unused-import
from adafruit_epd.ssd1681 import Adafruit_SSD1681 # pylint: disable=unused-import
from adafruit_epd.uc8151d import Adafruit_UC8151D # pylint: disable=unused-import
from adafruit_epd.ek79686 import Adafruit_EK79686 # pylint: disable=unused-import
# create the spi device and pins we will need
spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
@ -38,6 +39,7 @@ print("Creating display")
# display = Adafruit_SSD1681(200, 200, # 1.54" HD Tri-color display
# display = Adafruit_SSD1675(122, 250, # 2.13" HD mono display
# display = Adafruit_IL91874(176, 264, # 2.7" Tri-color display
# display = Adafruit_EK79686(176, 264, # 2.7" Tri-color display
# display = Adafruit_IL0373(152, 152, # 1.54" Tri-color display
# display = Adafruit_UC8151D(128, 296, # 2.9" mono flexible display
# display = Adafruit_IL0373(128, 296, # 2.9" Tri-color display

2
examples/epd_pillow_demo.py
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@ -18,6 +18,7 @@ from adafruit_epd.ssd1675 import Adafruit_SSD1675 # pylint: disable=unused-impo
from adafruit_epd.ssd1680 import Adafruit_SSD1680 # pylint: disable=unused-import
from adafruit_epd.ssd1681 import Adafruit_SSD1681 # pylint: disable=unused-import
from adafruit_epd.uc8151d import Adafruit_UC8151D # pylint: disable=unused-import
from adafruit_epd.ek79686 import Adafruit_EK79686 # pylint: disable=unused-import
# First define some color constants
WHITE = (0xFF, 0xFF, 0xFF)
@ -45,6 +46,7 @@ busy = digitalio.DigitalInOut(board.D17)
# display = Adafruit_SSD1680(122, 250, # 2.13" HD Tri-color or mono display
# display = Adafruit_SSD1681(200, 200, # 1.54" HD Tri-color display
# display = Adafruit_IL91874(176, 264, # 2.7" Tri-color display
# display = Adafruit_EK79686(176, 264, # 2.7" Tri-color display
# display = Adafruit_IL0373(152, 152, # 1.54" Tri-color display
# display = Adafruit_UC8151D(128, 296, # 2.9" mono flexible display
# display = Adafruit_IL0373(128, 296, # 2.9" Tri-color display

2
examples/epd_pillow_image.py
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@ -20,6 +20,7 @@ from adafruit_epd.ssd1675 import Adafruit_SSD1675 # pylint: disable=unused-impo
from adafruit_epd.ssd1680 import Adafruit_SSD1680 # pylint: disable=unused-import
from adafruit_epd.ssd1681 import Adafruit_SSD1681 # pylint: disable=unused-import
from adafruit_epd.uc8151d import Adafruit_UC8151D # pylint: disable=unused-import
from adafruit_epd.ek79686 import Adafruit_EK79686 # pylint: disable=unused-import
# create the spi device and pins we will need
@ -36,6 +37,7 @@ busy = digitalio.DigitalInOut(board.D17)
# display = Adafruit_SSD1680(122, 250, # 2.13" HD Tri-color or mono display
# display = Adafruit_SSD1681(200, 200, # 1.54" HD Tri-color display
# display = Adafruit_IL91874(176, 264, # 2.7" Tri-color display
# display = Adafruit_EK79686(176, 264, # 2.7" Tri-color display
# display = Adafruit_IL0373(152, 152, # 1.54" Tri-color display
# display = Adafruit_UC8151D(128, 296, # 2.9" mono flexible display
# display = Adafruit_IL0373(128, 296, # 2.9" Tri-color display

2
examples/epd_simpletest.py
View file

@ -13,6 +13,7 @@ from adafruit_epd.ssd1675 import Adafruit_SSD1675 # pylint: disable=unused-impo
from adafruit_epd.ssd1680 import Adafruit_SSD1680 # pylint: disable=unused-import
from adafruit_epd.ssd1681 import Adafruit_SSD1681 # pylint: disable=unused-import
from adafruit_epd.uc8151d import Adafruit_UC8151D # pylint: disable=unused-import
from adafruit_epd.ek79686 import Adafruit_EK79686 # pylint: disable=unused-import
# create the spi device and pins we will need
spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
@ -29,6 +30,7 @@ print("Creating display")
# display = Adafruit_SSD1680(122, 250, # 2.13" HD Tri-color display
# display = Adafruit_SSD1681(200, 200, # 1.54" HD Tri-color display
# display = Adafruit_IL91874(176, 264, # 2.7" Tri-color display
# display = Adafruit_EK79686(176, 264, # 2.7" Tri-color display
# display = Adafruit_IL0373(152, 152, # 1.54" Tri-color display
# display = Adafruit_UC8151D(128, 296, # 2.9" mono flexible display
# display = Adafruit_IL0373(128, 296, # 2.9" Tri-color display