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Added new programs 2.7inch V2 e-Paper routine.

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SSYYL 2022-11-01 10:46:11 +08:00
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RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd2in7_V2.py Normal file
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# *****************************************************************************
# * | File : epd2in7_V2.py
# * | Author : Waveshare team
# * | Function : Electronic paper driver
# * | Info :
# *----------------
# * | This version: V1.0
# * | Date : 2022-09-17
# # | 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 = 176
EPD_HEIGHT = 264
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
LUT_DATA_4Gray = [
0x40,0x48,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x8,0x48,0x10,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x2,0x48,0x4,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x20,0x48,0x1,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0xA,0x19,0x0,0x3,0x8,0x0,0x0,
0x14,0x1,0x0,0x14,0x1,0x0,0x3,
0xA,0x3,0x0,0x8,0x19,0x0,0x0,
0x1,0x0,0x0,0x0,0x0,0x0,0x1,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x22,0x22,0x22,0x22,0x22,0x22,0x0,0x0,0x0,
0x22,0x17,0x41,0x0,0x32,0x1C,
]
# Hardware reset
def reset(self):
epdconfig.digital_write(self.reset_pin, 1)
epdconfig.delay_ms(200)
epdconfig.digital_write(self.reset_pin, 0)
epdconfig.delay_ms(2)
epdconfig.digital_write(self.reset_pin, 1)
epdconfig.delay_ms(200)
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 ReadBusy(self):
logger.debug("e-Paper busy")
while(epdconfig.digital_read(self.busy_pin) == 1): # 1: idle, 0: busy
epdconfig.delay_ms(20)
logger.debug("e-Paper busy release")
def TurnOnDisplay(self):
self.send_command(0x22) #Display Update Control
self.send_data(0xF7)
self.send_command(0x20) #Activate Display Update Sequence
self.ReadBusy()
def TurnOnDisplay_Fast(self):
self.send_command(0x22) #Display Update Control
self.send_data(0xC7)
self.send_command(0x20) #Activate Display Update Sequence
self.ReadBusy()
def TurnOnDisplay_Partial(self):
self.send_command(0x22) #Display Update Control
self.send_data(0xFF)
self.send_command(0x20) #Activate Display Update Sequence
self.ReadBusy()
def TurnOnDisplay_4GRAY(self):
self.send_command(0x22) #Display Update Control
self.send_data(0xC7)
self.send_command(0x20) #Activate Display Update Sequence
self.ReadBusy()
def Lut(self):
self.send_command(0x32)
for i in range(159):
self.send_data(self.LUT_DATA_4Gray[i])
def init(self):
if (epdconfig.module_init() != 0):
return -1
# EPD hardware init start
self.reset()
self.ReadBusy()
self.send_command(0x12) #SWRESET
self.ReadBusy()
self.send_command(0x45) #set Ram-Y address start/end position
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x07) #0x0107-->(263+1)=264
self.send_data(0x01)
self.send_command(0x4F) # set RAM y address count to 0;
self.send_data(0x00)
self.send_data(0x00)
self.send_command(0x11) # data entry mode
self.send_data(0x03)
return 0
def init_Fast(self):
if (epdconfig.module_init() != 0):
return -1
# EPD hardware init start
self.reset()
self.ReadBusy()
self.send_command(0x12) #SWRESET
self.ReadBusy()
self.send_command(0x12) #SWRESET
self.ReadBusy()
self.send_command(0x18) #Read built-in temperature sensor
self.send_data(0x80)
self.send_command(0x22) # Load temperature value
self.send_data(0xB1)
self.send_command(0x20)
self.ReadBusy()
self.send_command(0x1A) # Write to temperature register
self.send_data(0x64)
self.send_data(0x00)
self.send_command(0x45) #set Ram-Y address start/end position
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x07) #0x0107-->(263+1)=264
self.send_data(0x01)
self.send_command(0x4F) # set RAM y address count to 0;
self.send_data(0x00)
self.send_data(0x00)
self.send_command(0x11) # data entry mode
self.send_data(0x03)
self.send_command(0x22) # Load temperature value
self.send_data(0x91)
self.send_command(0x20)
self.ReadBusy()
return 0
def Init_4Gray(self):
if (epdconfig.module_init() != 0):
return -1
self.reset()
self.send_command(0x12) # soft reset
self.ReadBusy();
self.send_command(0x74) #set analog block control
self.send_data(0x54)
self.send_command(0x7E) #set digital block control
self.send_data(0x3B)
self.send_command(0x01) #Driver output control
self.send_data(0x07)
self.send_data(0x01)
self.send_data(0x00)
self.send_command(0x11) #data entry mode
self.send_data(0x03)
self.send_command(0x44) #set Ram-X address start/end position
self.send_data(0x00)
self.send_data(0x15) #0x15-->(21+1)*8=176
self.send_command(0x45) #set Ram-Y address start/end position
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x07) #0x0107-->(263+1)=264
self.send_data(0x01)
self.send_command(0x3C) #BorderWavefrom
self.send_data(0x00)
self.send_command(0x2C) #VCOM Voltage
self.send_data(self.LUT_DATA_4Gray[158]) #0x1C
self.send_command(0x3F) #EOPQ
self.send_data(self.LUT_DATA_4Gray[153])
self.send_command(0x03) #VGH
self.send_data(self.LUT_DATA_4Gray[154])
self.send_command(0x04) #
self.send_data(self.LUT_DATA_4Gray[155]) #VSH1
self.send_data(self.LUT_DATA_4Gray[156]) #VSH2
self.send_data(self.LUT_DATA_4Gray[157]) #VSL
self.Lut() #LUT
self.send_command(0x4E) # set RAM x address count to 0;
self.send_data(0x00)
self.send_command(0x4F) # set RAM y address count to 0X199;
self.send_data(0x00)
self.send_data(0x00)
self.ReadBusy()
return 0
def getbuffer(self, image):
# logger.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()
# 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] == 0:
buf[int((x + y * self.width) / 8)] &= ~(0x80 >> (x % 8))
elif(imwidth == self.height and imheight == self.width):
logger.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))
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 clear(self):
if(self.width % 8 == 0):
Width = self.width // 8
else:
Width = self.width // 8 +1
Height = self.height
self.send_command(0x24)
for j in range(Height):
for i in range(Width):
self.send_data(0XFF)
self.TurnOnDisplay()
def display(self, image):
if(self.width % 8 == 0):
Width = self.width // 8
else:
Width = self.width // 8 +1
Height = self.height
self.send_command(0x24)
for j in range(Height):
for i in range(Width):
self.send_data(image[i + j * Width])
self.TurnOnDisplay()
def display_Fast(self, image):
if(self.width % 8 == 0):
Width = self.width // 8
else:
Width = self.width // 8 +1
Height = self.height
self.send_command(0x24)
for j in range(Height):
for i in range(Width):
self.send_data(image[i + j * Width])
self.TurnOnDisplay_Fast()
def display_Base(self, image):
if(self.width % 8 == 0):
Width = self.width // 8
else:
Width = self.width // 8 +1
Height = self.height
self.send_command(0x24) #Write Black and White image to RAM
for j in range(Height):
for i in range(Width):
self.send_data(image[i + j * Width])
self.send_command(0x26) #Write Black and White image to RAM
for j in range(Height):
for i in range(Width):
self.send_data(image[i + j * Width])
self.TurnOnDisplay()
def display_Base_color(self, color):
if(self.width % 8 == 0):
Width = self.width // 8
else:
Width = self.width // 8 +1
Height = self.height
self.send_command(0x24) #Write Black and White image to RAM
for j in range(Height):
for i in range(Width):
self.send_data(color)
self.send_command(0x26) #Write Black and White image to RAM
for j in range(Height):
for i in range(Width):
self.send_data(color)
# self.TurnOnDisplay()
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
Xend = Xend // 8
else:
Xstart = Xstart // 8
if Xend % 8 == 0:
Xend = Xend // 8
else:
Xend = Xend // 8 + 1
if(self.width % 8 == 0):
Width = self.width // 8
else:
Width = self.width // 8 +1
Height = self.height
Xend -= 1
Yend -= 1
# Reset
self.reset()
self.send_command(0x3C) #BorderWavefrom
self.send_data(0x80)
self.send_command(0x44) # set RAM x address start/end, in page 35
self.send_data(Xstart & 0xff) # RAM x address start at 00h;
self.send_data(Xend & 0xff) # RAM x address end at 0fh(15+1)*8->128
self.send_command(0x45) # set RAM y address start/end, in page 35
self.send_data(Ystart & 0xff) # RAM y address start at 0127h;
self.send_data((Ystart>>8) & 0x01) # RAM y address start at 0127h;
self.send_data(Yend & 0xff) # RAM y address end at 00h;
self.send_data((Yend>>8) & 0x01)
self.send_command(0x4E) # set RAM x address count to 0;
self.send_data(Xstart & 0xff)
self.send_command(0x4F) # set RAM y address count to 0X127;
self.send_data(Ystart & 0xff)
self.send_data((Ystart>>8) & 0x01)
self.send_command(0x24) #Write Black and White image to RAM
for j in range(Height):
for i in range(Width):
if((j > Ystart-1) & (j < (Yend + 1)) & (i > Xstart-1) & (i < (Xend + 1))):
self.send_data(Image[i + j * Width])
self.TurnOnDisplay_Partial()
def display_4Gray(self, image):
self.send_command(0x24)
for i in range(0, 5808): #5808*4 46464
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(0x26)
for i in range(0, 5808): #5808*4 46464
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.TurnOnDisplay_4GRAY()
def sleep(self):
self.send_command(0X10)
self.send_data(0x01)
epdconfig.delay_ms(2000)
epdconfig.module_exit()
### END OF FILE ###