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Merged
merged 6 commits into from
Apr 11, 2023
Merged

blinka image #61

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a410e4d
blinka image
ladyada Jul 10, 2020
c225150
make optimizations in case we dont have to toggle CS pin on each write.
ladyada Apr 7, 2023
70279ed
black bonnet
ladyada Apr 7, 2023
5d9eeba
Linting files for CI
BlitzCityDIY Apr 7, 2023
3c1bc12
black
BlitzCityDIY Apr 7, 2023
b55552f
fixing bmp license
BlitzCityDIY Apr 7, 2023
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44 changes: 29 additions & 15 deletions adafruit_epd/epd.py
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Original file line number Diff line number Diff line change
Expand Up @@ -107,8 +107,7 @@ def display(self): # pylint: disable=too-many-branches
databyte = self._spi_transfer(databyte)
self.sram.cs_pin.value = True
else:
for databyte in self._buffer1:
self._spi_transfer(databyte)
self._spi_transfer(self._buffer1)

self._cs.value = True
self.spi_device.unlock()
Expand Down Expand Up @@ -140,8 +139,7 @@ def display(self): # pylint: disable=too-many-branches
databyte = self._spi_transfer(databyte)
self.sram.cs_pin.value = True
else:
for databyte in self._buffer2:
self._spi_transfer(databyte)
self._spi_transfer(self._buffer2)

self._cs.value = True
self.spi_device.unlock()
Expand Down Expand Up @@ -171,23 +169,39 @@ def command(self, cmd, data=None, end=True):

if data is not None:
self._dc.value = True
for b in data:
self._spi_transfer(b)
self._spi_transfer(data)
if end:
self._cs.value = True
self.spi_device.unlock()

return ret

def _spi_transfer(self, databyte):
"""Transfer one byte, toggling the cs pin if required by the EPD chipset"""
self._spibuf[0] = databyte
if self._single_byte_tx:
self._cs.value = False
self.spi_device.write_readinto(self._spibuf, self._spibuf)
if self._single_byte_tx:
self._cs.value = True
return self._spibuf[0]
def _spi_transfer(self, data):
"""Transfer one byte or bytearray, toggling the cs pin if required by the EPD chipset"""
if isinstance(data, int): # single byte!
self._spibuf[0] = data

# easy & fast case: array and no twiddling
if not self._single_byte_tx and isinstance(data, bytearray):
self.spi_device.write(data)
return None

# if its a single byte
if isinstance(data, int): # single byte!
if self._single_byte_tx:
self._cs.value = False
try:
self.spi_device.write_readinto(self._spibuf, self._spibuf)
except NotImplementedError:
self.spi_device.write(self._spibuf)
if self._single_byte_tx:
self._cs.value = True
return self._spibuf[0]

if isinstance(data, bytearray):
for x in data:
self._spi_transfer(x)
return None

def power_up(self):
"""Power up the display in preparation for writing RAM and updating.
Expand Down
35 changes: 18 additions & 17 deletions examples/epd_bonnet.py
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Original file line number Diff line number Diff line change
Expand Up @@ -61,29 +61,29 @@
draw.rectangle((1, 1, width - 2, height - 2), outline=BLACK, fill=WHITE)
# Draw some shapes.
# First define some constants to allow easy resizing of shapes.
padding = 5
shape_width = 30
top = padding
bottom = height - padding
PADDING = 5
SHAPE_WIDTH = 30
TOP = PADDING
bottom = height - PADDING
# Move left to right keeping track of the current x position for drawing shapes.
x = padding
x = PADDING
# Draw an ellipse.
draw.ellipse((x, top, x + shape_width, bottom), outline=BLACK, fill=WHITE)
x += shape_width + padding
draw.ellipse((x, TOP, x + SHAPE_WIDTH, bottom), outline=BLACK, fill=WHITE)
x += SHAPE_WIDTH + PADDING
# Draw a rectangle.
draw.rectangle((x, top, x + shape_width, bottom), outline=WHITE, fill=BLACK)
x += shape_width + padding
draw.rectangle((x, TOP, x + SHAPE_WIDTH, bottom), outline=WHITE, fill=BLACK)
x += SHAPE_WIDTH + PADDING
# Draw a triangle.
draw.polygon(
[(x, bottom), (x + shape_width / 2, top), (x + shape_width, bottom)],
[(x, bottom), (x + SHAPE_WIDTH / 2, TOP), (x + SHAPE_WIDTH, bottom)],
outline=BLACK,
fill=WHITE,
)
x += shape_width + padding
x += SHAPE_WIDTH + PADDING
# Draw an X.
draw.line((x, bottom, x + shape_width, top), fill=BLACK)
draw.line((x, top, x + shape_width, bottom), fill=BLACK)
x += shape_width + padding
draw.line((x, bottom, x + SHAPE_WIDTH, TOP), fill=BLACK)
draw.line((x, TOP, x + SHAPE_WIDTH, bottom), fill=BLACK)
x += SHAPE_WIDTH + PADDING

# Load default font.
font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf", 20)
Expand All @@ -94,8 +94,8 @@
# font = ImageFont.truetype('Minecraftia.ttf', 8)

# Write two lines of text.
draw.text((x, top), "Hello", font=font, fill=BLACK)
draw.text((x, top + 20), "World!", font=font, fill=BLACK)
draw.text((x, TOP), "Hello", font=font, fill=BLACK)
draw.text((x, TOP + 20), "World!", font=font, fill=BLACK)

while True:
if not switch1.value:
Expand All @@ -106,7 +106,8 @@
time.sleep(0.01)
if not switch2.value:
print("Switch 2")
display.fill(Adafruit_EPD.WHITE)
blinkaimage = Image.open("epd_bonnet_blinka_250x122.bmp")
display.image(blinkaimage)
display.display()
while not switch2.value:
time.sleep(0.01)
Expand Down
Binary file added examples/epd_bonnet_blinka_250x122.bmp
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2 changes: 2 additions & 0 deletions examples/epd_bonnet_blinka_250x122.bmp.license
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT
40 changes: 40 additions & 0 deletions examples/feather_epd_blinka.py
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Original file line number Diff line number Diff line change
@@ -0,0 +1,40 @@
# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT

import time
import digitalio
import busio
import board
from adafruit_epd.epd import Adafruit_EPD
from adafruit_epd.ssd1680 import Adafruit_SSD1680

# create the spi device and pins we will need
spi = busio.SPI(board.EPD_SCK, MOSI=board.EPD_MOSI, MISO=None)
epd_cs = digitalio.DigitalInOut(board.EPD_CS)
epd_dc = digitalio.DigitalInOut(board.EPD_DC)
epd_reset = digitalio.DigitalInOut(board.EPD_RESET)
epd_busy = digitalio.DigitalInOut(board.EPD_BUSY)
srcs = None

display = Adafruit_SSD1680(
122,
250,
spi,
cs_pin=epd_cs,
dc_pin=epd_dc,
sramcs_pin=srcs,
rst_pin=epd_reset,
busy_pin=epd_busy,
)

display.rotation = 3
display.fill(Adafruit_EPD.WHITE)

display.fill_rect(20, 20, 50, 60, Adafruit_EPD.BLACK)
display.hline(80, 30, 60, Adafruit_EPD.BLACK)
display.vline(80, 30, 60, Adafruit_EPD.BLACK)

# draw repeatedly with pauses
while True:
display.display()
time.sleep(15)
98 changes: 98 additions & 0 deletions examples/feather_epd_blinka_pillow.py
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Original file line number Diff line number Diff line change
@@ -0,0 +1,98 @@
# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT

import time
import digitalio
import busio
import board
from PIL import Image
from PIL import ImageDraw
from PIL import ImageFont
from adafruit_epd.epd import Adafruit_EPD
from adafruit_epd.ssd1680 import Adafruit_SSD1680

# create the spi device and pins we will need
spi = busio.SPI(board.EPD_SCK, MOSI=board.EPD_MOSI, MISO=None)
epd_cs = digitalio.DigitalInOut(board.EPD_CS)
epd_dc = digitalio.DigitalInOut(board.EPD_DC)
epd_reset = digitalio.DigitalInOut(board.EPD_RESET)
epd_busy = digitalio.DigitalInOut(board.EPD_BUSY)
srcs = None

display = Adafruit_SSD1680(
122,
250,
spi,
cs_pin=epd_cs,
dc_pin=epd_dc,
sramcs_pin=srcs,
rst_pin=epd_reset,
busy_pin=epd_busy,
)

display.rotation = 3
# Create blank image for drawing.
# Make sure to create image with mode '1' for 1-bit color.
width = display.width
height = display.height
image = Image.new("RGB", (width, height))

WHITE = (0xFF, 0xFF, 0xFF)
BLACK = (0x00, 0x00, 0x00)

# clear the display
display.fill(Adafruit_EPD.WHITE)

# Get drawing object to draw on image.
draw = ImageDraw.Draw(image)
# empty it
draw.rectangle((0, 0, width, height), fill=WHITE)

# Draw an outline box
draw.rectangle((1, 1, width - 2, height - 2), outline=BLACK, fill=WHITE)
# Draw some shapes.
# First define some constants to allow easy resizing of shapes.
padding = 5
shape_width = 30
top = padding
bottom = height - padding
# Move left to right keeping track of the current x position for drawing shapes.
x = padding
# Draw an ellipse.
draw.ellipse((x, top, x + shape_width, bottom), outline=BLACK, fill=WHITE)
x += shape_width + padding
# Draw a rectangle.
draw.rectangle((x, top, x + shape_width, bottom), outline=WHITE, fill=BLACK)
x += shape_width + padding
# Draw a triangle.
draw.polygon(
[(x, bottom), (x + shape_width / 2, top), (x + shape_width, bottom)],
outline=BLACK,
fill=WHITE,
)
x += shape_width + padding
# Draw an X.
draw.line((x, bottom, x + shape_width, top), fill=BLACK)
draw.line((x, top, x + shape_width, bottom), fill=BLACK)
x += shape_width + padding

# Load default font.
font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf", 20)

# Alternatively load a TTF font. Make sure the .ttf font
# file is in the same directory as the python script!
# Some other nice fonts to try: http://www.dafont.com/bitmap.php
# font = ImageFont.truetype('Minecraftia.ttf', 8)

# Write two lines of text.
draw.text((x, top), "Hello", font=font, fill=BLACK)
draw.text((x, top + 20), "World!", font=font, fill=BLACK)

display.image(image)
display.display()

time.sleep(10)

blinkaimage = Image.open("examples/epd_bonnet_blinka_250x122.bmp")
display.image(blinkaimage)
display.display()