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2.13-Ink-screen-clock/lib/waveshare_epd/epd7in5_V2.py
星光-k 46d1dae95a 更新微雪墨水屏的所有驱动
2025-01-07 15:44:43 +00:00

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# *****************************************************************************
# * | File : epd7in5.py
# * | Author : Waveshare team
# * | Function : Electronic paper driver
# * | Info :
# *----------------
# * | This version: V4.0
# * | Date : 2019-06-20
# # | Info : python demo
# -----------------------------------------------------------------------------
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documnetation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
import logging
from . import epdconfig
# Display resolution
EPD_WIDTH = 800
EPD_HEIGHT = 480
GRAY1 = 0xff #white
GRAY2 = 0xC0
GRAY3 = 0x80 #gray
GRAY4 = 0x00 #Blackest
logger = logging.getLogger(__name__)
class EPD:
def __init__(self):
self.reset_pin = epdconfig.RST_PIN
self.dc_pin = epdconfig.DC_PIN
self.busy_pin = epdconfig.BUSY_PIN
self.cs_pin = epdconfig.CS_PIN
self.width = EPD_WIDTH
self.height = EPD_HEIGHT
self.GRAY1 = GRAY1 #white
self.GRAY2 = GRAY2
self.GRAY3 = GRAY3 #gray
self.GRAY4 = GRAY4 #Blackest
# Hardware reset
def reset(self):
epdconfig.digital_write(self.reset_pin, 1)
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(20)
def send_command(self, command):
epdconfig.digital_write(self.dc_pin, 0)
epdconfig.digital_write(self.cs_pin, 0)
epdconfig.spi_writebyte([command])
epdconfig.digital_write(self.cs_pin, 1)
def send_data(self, data):
epdconfig.digital_write(self.dc_pin, 1)
epdconfig.digital_write(self.cs_pin, 0)
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):
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(20)
logger.debug("e-Paper busy release")
def init(self):
if (epdconfig.module_init() != 0):
return -1
# 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
self.send_data(0x28) #VDH=15V
self.send_data(0x17) #VDL=-15V
self.send_command(0x04) #POWER ON
epdconfig.delay_ms(100)
self.ReadBusy()
self.send_command(0X00) #PANNEL SETTING
self.send_data(0x1F) #KW-3f KWR-2F BWROTP 0f BWOTP 1f
self.send_command(0x61) #tres
self.send_data(0x03) #source 800
self.send_data(0x20)
self.send_data(0x01) #gate 480
self.send_data(0xE0)
self.send_command(0X15)
self.send_data(0x00)
# If the screen appears gray, use the annotated initialization command
self.send_command(0X50)
self.send_data(0x10)
self.send_data(0x07)
# self.send_command(0X50)
# self.send_data(0x10)
# self.send_data(0x17)
# self.send_command(0X52)
# self.send_data(0x03)
self.send_command(0X60) #TCON SETTING
self.send_data(0x22)
# EPD hardware init end
return 0
def init_fast(self):
if (epdconfig.module_init() != 0):
return -1
# EPD hardware init start
self.reset()
self.send_command(0X00) #PANNEL SETTING
self.send_data(0x1F) #KW-3f KWR-2F BWROTP 0f BWOTP 1f
# If the screen appears gray, use the annotated initialization command
self.send_command(0X50)
self.send_data(0x10)
self.send_data(0x07)
# self.send_command(0X50)
# self.send_data(0x10)
# self.send_data(0x17)
# self.send_command(0X52)
# self.send_data(0x03)
self.send_command(0x04) #POWER ON
epdconfig.delay_ms(100)
self.ReadBusy() #waiting for the electronic paper IC to release the idle signal
#Enhanced display drive(Add 0x06 command)
self.send_command(0x06) #Booster Soft Start
self.send_data (0x27)
self.send_data (0x27)
self.send_data (0x18)
self.send_data (0x17)
self.send_command(0xE0)
self.send_data(0x02)
self.send_command(0xE5)
self.send_data(0x5A)
# EPD hardware init end
return 0
def init_part(self):
if (epdconfig.module_init() != 0):
return -1
# EPD hardware init start
self.reset()
self.send_command(0X00) #PANNEL SETTING
self.send_data(0x1F) #KW-3f KWR-2F BWROTP 0f BWOTP 1f
self.send_command(0x04) #POWER ON
epdconfig.delay_ms(100)
self.ReadBusy() #waiting for the electronic paper IC to release the idle signal
self.send_command(0xE0)
self.send_data(0x02)
self.send_command(0xE5)
self.send_data(0x6E)
# EPD hardware init end
return 0
# The feature will only be available on screens sold after 24/10/23
def init_4Gray(self):
if (epdconfig.module_init() != 0):
return -1
# EPD hardware init start
self.reset()
self.send_command(0X00) #PANNEL SETTING
self.send_data(0x1F) #KW-3f KWR-2F BWROTP 0f BWOTP 1f
self.send_command(0X50)
self.send_data(0x10)
self.send_data(0x07)
self.send_command(0x04) #POWER ON
epdconfig.delay_ms(100)
self.ReadBusy() #waiting for the electronic paper IC to release the idle signal
#Enhanced display drive(Add 0x06 command)
self.send_command(0x06) #Booster Soft Start
self.send_data (0x27)
self.send_data (0x27)
self.send_data (0x18)
self.send_data (0x17)
self.send_command(0xE0)
self.send_data(0x02)
self.send_command(0xE5)
self.send_data(0x5F)
# EPD hardware init end
return 0
def getbuffer(self, image):
img = image
imwidth, imheight = img.size
if(imwidth == self.width and imheight == self.height):
img = img.convert('1')
elif(imwidth == self.height and imheight == self.width):
# 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 getbuffer_4Gray(self, image):
# logger.debug("bufsiz = ",int(self.width/8) * self.height)
buf = [0xFF] * (int(self.width / 4) * self.height)
image_monocolor = image.convert('L')
imwidth, imheight = image_monocolor.size
pixels = image_monocolor.load()
i=0
# logger.debug("imwidth = %d, imheight = %d",imwidth,imheight)
if(imwidth == self.width and imheight == self.height):
logger.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] == 0xC0):
pixels[x, y] = 0x80
elif (pixels[x, y] == 0x80):
pixels[x, y] = 0x40
i= i+1
if(i%4 == 0):
buf[int((x + (y * self.width))/4)] = ((pixels[x-3, y]&0xc0) | (pixels[x-2, y]&0xc0)>>2 | (pixels[x-1, y]&0xc0)>>4 | (pixels[x, y]&0xc0)>>6)
elif(imwidth == self.height and imheight == self.width):
logger.debug("Horizontal")
for x in range(imwidth):
for y in range(imheight):
newx = y
newy = self.height - x - 1
if(pixels[x, y] == 0xC0):
pixels[x, y] = 0x80
elif (pixels[x, y] == 0x80):
pixels[x, y] = 0x40
i= i+1
if(i%4 == 0):
buf[int((newx + (newy * self.width))/4)] = ((pixels[x, y-3]&0xc0) | (pixels[x, y-2]&0xc0)>>2 | (pixels[x, y-1]&0xc0)>>4 | (pixels[x, y]&0xc0)>>6)
return buf
def display(self, image):
if(self.width % 8 == 0):
Width = self.width // 8
else:
Width = self.width // 8 +1
Height = self.height
image1 = [0xFF] * int(self.width * self.height / 8)
for j in range(Height):
for i in range(Width):
image1[i + j * Width] = ~image[i + j * Width]
self.send_command(0x10)
self.send_data2(image1)
self.send_command(0x13)
self.send_data2(image)
self.send_command(0x12)
epdconfig.delay_ms(100)
self.ReadBusy()
def Clear(self):
self.send_command(0x10)
self.send_data2([0xFF] * int(self.width * self.height / 8))
self.send_command(0x13)
self.send_data2([0x00] * int(self.width * self.height / 8))
self.send_command(0x12)
epdconfig.delay_ms(100)
self.ReadBusy()
def display_Partial(self, Image, Xstart, Ystart, Xend, Yend):
if((Xstart % 8 + Xend % 8 == 8 & Xstart % 8 > Xend % 8) | Xstart % 8 + Xend % 8 == 0 | (Xend - Xstart)%8 == 0):
Xstart = Xstart // 8 * 8
Xend = Xend // 8 * 8
else:
Xstart = Xstart // 8 * 8
if Xend % 8 == 0:
Xend = Xend // 8 * 8
else:
Xend = Xend // 8 * 8 + 1
Width = (Xend - Xstart) // 8
Height = Yend - Ystart
self.send_command(0x50)
self.send_data(0xA9)
self.send_data(0x07)
self.send_command(0x91) #This command makes the display enter partial mode
self.send_command(0x90) #resolution setting
self.send_data (Xstart//256)
self.send_data (Xstart%256) #x-start
self.send_data ((Xend-1)//256)
self.send_data ((Xend-1)%256) #x-end
self.send_data (Ystart//256) #
self.send_data (Ystart%256) #y-start
self.send_data ((Yend-1)//256)
self.send_data ((Yend-1)%256) #y-end
self.send_data (0x01)
image1 = [0xFF] * int(self.width * self.height / 8)
for j in range(Height):
for i in range(Width):
image1[i + j * Width] = ~Image[i + j * Width]
self.send_command(0x13) #Write Black and White image to RAM
self.send_data2(image1)
self.send_command(0x12)
epdconfig.delay_ms(100)
self.ReadBusy()
def display_4Gray(self, image):
self.send_command(0x10)
for i in range(0, 48000):
temp3=0
for j in range(0, 2):
temp1 = image[i*2+j]
for k in range(0, 2):
temp2 = temp1&0xC0
if(temp2 == 0xC0):
temp3 |= 0x00
elif(temp2 == 0x00):
temp3 |= 0x01
elif(temp2 == 0x80):
temp3 |= 0x01
else: #0x40
temp3 |= 0x00
temp3 <<= 1
temp1 <<= 2
temp2 = temp1&0xC0
if(temp2 == 0xC0):
temp3 |= 0x00
elif(temp2 == 0x00):
temp3 |= 0x01
elif(temp2 == 0x80):
temp3 |= 0x01
else : #0x40
temp3 |= 0x00
if(j!=1 or k!=1):
temp3 <<= 1
temp1 <<= 2
self.send_data(temp3)
self.send_command(0x13)
for i in range(0, 48000):
temp3=0
for j in range(0, 2):
temp1 = image[i*2+j]
for k in range(0, 2):
temp2 = temp1&0xC0
if(temp2 == 0xC0):
temp3 |= 0x00
elif(temp2 == 0x00):
temp3 |= 0x01
elif(temp2 == 0x80):
temp3 |= 0x00
else: #0x40
temp3 |= 0x01
temp3 <<= 1
temp1 <<= 2
temp2 = temp1&0xC0
if(temp2 == 0xC0):
temp3 |= 0x00
elif(temp2 == 0x00):
temp3 |= 0x01
elif(temp2 == 0x80):
temp3 |= 0x00
else: #0x40
temp3 |= 0x01
if(j!=1 or k!=1):
temp3 <<= 1
temp1 <<= 2
self.send_data(temp3)
self.send_command(0x12)
epdconfig.delay_ms(100)
self.ReadBusy()
def sleep(self):
self.send_command(0x50)
self.send_data(0XF7)
self.send_command(0x02) # POWER_OFF
self.ReadBusy()
self.send_command(0x07) # DEEP_SLEEP
self.send_data(0XA5)
epdconfig.delay_ms(2000)
epdconfig.module_exit()
### END OF FILE ###
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