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Update v2 driver

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This commit is contained in:
Ace 2023-11-21 13:28:56 +01:00
parent 2b2eca2271
commit e78fd0d4b5
1 changed files with 40 additions and 32 deletions
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72
inkycal/display/drivers/epd_7_in_5_v2.py
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@ -35,6 +35,8 @@ from inkycal.display.drivers import epdconfig
EPD_WIDTH = 800
EPD_HEIGHT = 480
logger = logging.getLogger(__name__)
class EPD:
def __init__(self):
@ -48,11 +50,11 @@ class EPD:
# Hardware reset
def reset(self):
epdconfig.digital_write(self.reset_pin, 1)
epdconfig.delay_ms(200)
epdconfig.delay_ms(20)
epdconfig.digital_write(self.reset_pin, 0)
epdconfig.delay_ms(2)
epdconfig.digital_write(self.reset_pin, 1)
epdconfig.delay_ms(200)
epdconfig.delay_ms(20)
def send_command(self, command):
epdconfig.digital_write(self.dc_pin, 0)
@ -66,14 +68,21 @@ class EPD:
epdconfig.spi_writebyte([data])
epdconfig.digital_write(self.cs_pin, 1)
def send_data2(self, data):
epdconfig.digital_write(self.dc_pin, 1)
epdconfig.digital_write(self.cs_pin, 0)
epdconfig.SPI.writebytes2(data)
epdconfig.digital_write(self.cs_pin, 1)
def ReadBusy(self):
logging.debug("e-Paper busy")
logger.debug("e-Paper busy")
self.send_command(0x71)
busy = epdconfig.digital_read(self.busy_pin)
while (busy == 0):
self.send_command(0x71)
busy = epdconfig.digital_read(self.busy_pin)
epdconfig.delay_ms(200)
epdconfig.delay_ms(20)
logger.debug("e-Paper busy release")
def init(self):
if (epdconfig.module_init() != 0):
@ -81,6 +90,12 @@ class EPD:
# EPD hardware init start
self.reset()
self.send_command(0x06) # btst
self.send_data(0x17)
self.send_data(0x17)
self.send_data(0x28) # If an exception is displayed, try using 0x38
self.send_data(0x17)
self.send_command(0x01) # POWER SETTING
self.send_data(0x07)
self.send_data(0x07) # VGH=20V,VGL=-20V
@ -114,47 +129,39 @@ class EPD:
return 0
def getbuffer(self, image):
# logging.debug("bufsiz = ",int(self.width/8) * self.height)
buf = [0xFF] * (int(self.width / 8) * self.height)
image_monocolor = image.convert('1')
imwidth, imheight = image_monocolor.size
pixels = image_monocolor.load()
# logging.debug("imwidth = %d, imheight = %d",imwidth,imheight)
img = image
imwidth, imheight = img.size
if (imwidth == self.width and imheight == self.height):
logging.debug("Vertical")
for y in range(imheight):
for x in range(imwidth):
# Set the bits for the column of pixels at the current position.
if pixels[x, y] == 0:
buf[int((x + y * self.width) / 8)] &= ~(0x80 >> (x % 8))
img = img.convert('1')
elif (imwidth == self.height and imheight == self.width):
logging.debug("Horizontal")
for y in range(imheight):
for x in range(imwidth):
newx = y
newy = self.height - x - 1
if pixels[x, y] == 0:
buf[int((newx + newy * self.width) / 8)] &= ~(0x80 >> (y % 8))
# image has correct dimensions, but needs to be rotated
img = img.rotate(90, expand=True).convert('1')
else:
logger.warning("Wrong image dimensions: must be " + str(self.width) + "x" + str(self.height))
# return a blank buffer
return [0x00] * (int(self.width / 8) * self.height)
buf = bytearray(img.tobytes('raw'))
# The bytes need to be inverted, because in the PIL world 0=black and 1=white, but
# in the e-paper world 0=white and 1=black.
for i in range(len(buf)):
buf[i] ^= 0xFF
return buf
def display(self, image):
self.send_command(0x13)
for i in range(0, int(self.width * self.height / 8)):
self.send_data(~image[i]);
self.send_data2(image)
self.send_command(0x12)
epdconfig.delay_ms(100)
self.ReadBusy()
def Clear(self):
buf = [0x00] * (int(self.width / 8) * self.height)
self.send_command(0x10)
for i in range(0, int(self.width * self.height / 8)):
self.send_data(0x00)
self.send_data2(buf)
self.send_command(0x13)
for i in range(0, int(self.width * self.height / 8)):
self.send_data(0x00)
self.send_data2(buf)
self.send_command(0x12)
epdconfig.delay_ms(100)
self.ReadBusy()
@ -166,5 +173,6 @@ class EPD:
self.send_command(0x07) # DEEP_SLEEP
self.send_data(0XA5)
epdconfig.delay_ms(2000)
epdconfig.module_exit()
### END OF FILE ###
### END OF FILE ###