Datasheet

ManualsBrandsAdafruit ManualsAdafruitFeather Friend eInk Display Driver Board

# create the spi device and pins we will need

spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)

ecs = digitalio.DigitalInOut(board.D10)

dc = digitalio.DigitalInOut(board.D9)

srcs = digitalio.DigitalInOut(board.D7) # can be None to use internal memory

rst = digitalio.DigitalInOut(board.D11) # can be None to not use this pin

busy = digitalio.DigitalInOut(board.D12) # can be None to not use this pin

# give them all to our driver

print("Creating display")

#display = Adafruit_SSD1608(200, 200, spi, # 1.54" HD mono display

#display = Adafruit_SSD1675(122, 250, spi, # 2.13" HD mono display

#display = Adafruit_IL91874(176, 264, spi, # 2.7" Tri-color display

#display = Adafruit_IL0373(152, 152, spi, # 1.54" Tri-color display

#display = Adafruit_IL0373(128, 296, spi, # 2.9" Tri-color display

#display = Adafruit_IL0398(400, 300, spi, # 4.2" Tri-color display

display = Adafruit_IL0373(104, 212, spi, # 2.13" Tri-color display

cs_pin=ecs, dc_pin=dc, sramcs_pin=srcs,

rst_pin=rst, busy_pin=busy)

# IF YOU HAVE A FLEXIBLE DISPLAY (2.13" or 2.9") uncomment these lines!

#display.set_black_buffer(1, False)

#display.set_color_buffer(1, False)

display.rotation = 0

FILENAME = "blinka154mono.bmp"

def read_le(s):

# as of this writting, int.from_bytes does not have LE support, DIY!

result = 0

shift = 0

for byte in bytearray(s):

result += byte << shift

shift += 8

return result

class BMPError(Exception):

pass

def display_bitmap(epd, filename): # pylint: disable=too-many-locals, too-many-branches

try:

f = open("/" + filename, "rb")

except OSError:

print("Couldn't open file")

return

print("File opened")

try:

if f.read(2) != b'BM': # check signature

raise BMPError("Not BitMap file")

bmpFileSize = read_le(f.read(4))

f.read(4) # Read & ignore creator bytes

bmpImageoffset = read_le(f.read(4)) # Start of image data

headerSize = read_le(f.read(4))

bmpWidth = read_le(f.read(4))

bmpHeight = read_le(f.read(4))