e-paper-display/lib/waveshare_epd/epd2in9_V2.py

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2022-10-17 20:30:57 +00:00
# *****************************************************************************
# * | File : epd2in9_V2.py
# * | Author : Waveshare team
# * | Function : Electronic paper driver
# * | Info :
# *----------------
# * | This version: V1.1
# * | Date : 2022-08-9
# # | 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 = 128
EPD_HEIGHT = 296
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GRAY1 = 0xff #white
GRAY2 = 0xC0
GRAY3 = 0x80 #gray
GRAY4 = 0x00 #Blackest
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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
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self.GRAY1 = GRAY1 #white
self.GRAY2 = GRAY2
self.GRAY3 = GRAY3 #gray
self.GRAY4 = GRAY4 #Blackest
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WF_PARTIAL_2IN9 = [
0x0,0x40,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x80,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x40,0x40,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0A,0x0,0x0,0x0,0x0,0x0,0x1,
0x1,0x0,0x0,0x0,0x0,0x0,0x0,
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,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x22,0x22,0x22,0x22,0x22,0x22,0x0,0x0,0x0,
0x22,0x17,0x41,0xB0,0x32,0x36,
]
WS_20_30 = [
0x80, 0x66, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40, 0x0, 0x0, 0x0,
0x10, 0x66, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20, 0x0, 0x0, 0x0,
0x80, 0x66, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40, 0x0, 0x0, 0x0,
0x10, 0x66, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x14, 0x8, 0x0, 0x0, 0x0, 0x0, 0x2,
0xA, 0xA, 0x0, 0xA, 0xA, 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,
0x14, 0x8, 0x0, 0x1, 0x0, 0x0, 0x1,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x0, 0x0, 0x0,
0x22, 0x17, 0x41, 0x0, 0x32, 0x36
]
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Gray4 = [
0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x20, 0x60, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x28, 0x60, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x2A, 0x60, 0x15, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x02, 0x00, 0x05, 0x14, 0x00, 0x00,
0x1E, 0x1E, 0x00, 0x00, 0x00, 0x00, 0x01,
0x00, 0x02, 0x00, 0x05, 0x14, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x24, 0x22, 0x22, 0x22, 0x23, 0x32, 0x00, 0x00, 0x00,
0x22, 0x17, 0x41, 0xAE, 0x32, 0x28,
]
WF_FULL = [
0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x19, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x24, 0x42, 0x22, 0x22, 0x23, 0x32, 0x00, 0x00, 0x00,
0x22, 0x17, 0x41, 0xAE, 0x32, 0x38]
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# Hardware reset
def reset(self):
epdconfig.digital_write(self.reset_pin, 1)
epdconfig.delay_ms(50)
epdconfig.digital_write(self.reset_pin, 0)
epdconfig.delay_ms(2)
epdconfig.digital_write(self.reset_pin, 1)
epdconfig.delay_ms(50)
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)
# send a lot of data
def send_data2(self, data):
epdconfig.digital_write(self.dc_pin, 1)
epdconfig.digital_write(self.cs_pin, 0)
epdconfig.spi_writebyte2(data)
epdconfig.digital_write(self.cs_pin, 1)
def ReadBusy(self):
logger.debug("e-Paper busy")
while(epdconfig.digital_read(self.busy_pin) == 1): # 0: idle, 1: busy
epdconfig.delay_ms(10)
logger.debug("e-Paper busy release")
def TurnOnDisplay(self):
self.send_command(0x22) # DISPLAY_UPDATE_CONTROL_2
self.send_data(0xc7)
self.send_command(0x20) # MASTER_ACTIVATION
self.ReadBusy()
def TurnOnDisplay_Partial(self):
self.send_command(0x22) # DISPLAY_UPDATE_CONTROL_2
self.send_data(0x0F)
self.send_command(0x20) # MASTER_ACTIVATION
self.ReadBusy()
def lut(self, lut):
self.send_command(0x32)
for i in range(0, 153):
self.send_data(lut[i])
self.ReadBusy()
def SetLut(self, lut):
self.lut(lut)
self.send_command(0x3f)
self.send_data(lut[153])
self.send_command(0x03); # gate voltage
self.send_data(lut[154])
self.send_command(0x04); # source voltage
self.send_data(lut[155]) # VSH
self.send_data(lut[156]) # VSH2
self.send_data(lut[157]) # VSL
self.send_command(0x2c); # VCOM
self.send_data(lut[158])
def SetWindow(self, x_start, y_start, x_end, y_end):
self.send_command(0x44) # SET_RAM_X_ADDRESS_START_END_POSITION
# x point must be the multiple of 8 or the last 3 bits will be ignored
self.send_data((x_start>>3) & 0xFF)
self.send_data((x_end>>3) & 0xFF)
self.send_command(0x45) # SET_RAM_Y_ADDRESS_START_END_POSITION
self.send_data(y_start & 0xFF)
self.send_data((y_start >> 8) & 0xFF)
self.send_data(y_end & 0xFF)
self.send_data((y_end >> 8) & 0xFF)
def SetCursor(self, x, y):
self.send_command(0x4E) # SET_RAM_X_ADDRESS_COUNTER
# x point must be the multiple of 8 or the last 3 bits will be ignored
self.send_data(x & 0xFF)
self.send_command(0x4F) # SET_RAM_Y_ADDRESS_COUNTER
self.send_data(y & 0xFF)
self.send_data((y >> 8) & 0xFF)
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(0x01) #Driver output control
self.send_data(0x27)
self.send_data(0x01)
self.send_data(0x00)
self.send_command(0x11) #data entry mode
self.send_data(0x03)
self.SetWindow(0, 0, self.width-1, self.height-1)
self.send_command(0x21) # Display update control
self.send_data(0x00)
self.send_data(0x80)
self.SetCursor(0, 0)
self.ReadBusy()
self.SetLut(self.WS_20_30)
# EPD hardware init end
return 0
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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(0x01) #Driver output control
self.send_data(0x27)
self.send_data(0x01)
self.send_data(0x00)
self.send_command(0x11) #data entry mode
self.send_data(0x03)
self.SetWindow(0, 0, self.width-1, self.height-1)
self.send_command(0x3C)
self.send_data(0x05)
self.send_command(0x21) # Display update control
self.send_data(0x00)
self.send_data(0x80)
self.SetCursor(0, 0)
self.ReadBusy()
self.SetLut(self.WF_FULL)
# EPD hardware init end
return 0
def Init_4Gray(self):
if (epdconfig.module_init() != 0):
return -1
self.reset()
epdconfig.delay_ms(100)
self.ReadBusy()
self.send_command(0x12) #SWRESET
self.ReadBusy()
self.send_command(0x01) #Driver output control
self.send_data(0x27)
self.send_data(0x01)
self.send_data(0x00)
self.send_command(0x11) #data entry mode
self.send_data(0x03)
self.SetWindow(8, 0, self.width, self.height-1)
self.send_command(0x3C)
self.send_data(0x04)
self.SetCursor(1, 0)
self.ReadBusy()
self.SetLut(self.Gray4)
# EPD hardware init end
return 0
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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
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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
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def display(self, image):
if (image == None):
return
self.send_command(0x24) # WRITE_RAM
self.send_data2(image)
self.TurnOnDisplay()
def display_Base(self, image):
if (image == None):
return
self.send_command(0x24) # WRITE_RAM
self.send_data2(image)
self.send_command(0x26) # WRITE_RAM
self.send_data2(image)
self.TurnOnDisplay()
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def display_4Gray(self, image):
self.send_command(0x24)
for i in range(0, 4736):
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, 4736):
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()
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def display_Partial(self, image):
if (image == None):
return
epdconfig.digital_write(self.reset_pin, 0)
epdconfig.delay_ms(2)
epdconfig.digital_write(self.reset_pin, 1)
epdconfig.delay_ms(2)
self.SetLut(self.WF_PARTIAL_2IN9)
self.send_command(0x37)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x40)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_command(0x3C) #BorderWavefrom
self.send_data(0x80)
self.send_command(0x22)
self.send_data(0xC0)
self.send_command(0x20)
self.ReadBusy()
self.SetWindow(0, 0, self.width - 1, self.height - 1)
self.SetCursor(0, 0)
self.send_command(0x24) # WRITE_RAM
self.send_data2(image)
self.TurnOnDisplay_Partial()
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def Clear(self, color=0xFF):
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if self.width%8 == 0:
linewidth = int(self.width/8)
else:
linewidth = int(self.width/8) + 1
self.send_command(0x24) # WRITE_RAM
self.send_data2([color] * int(self.height * linewidth))
self.TurnOnDisplay()
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self.send_command(0x26) # WRITE_RAM
self.send_data2([color] * int(self.height * linewidth))
self.TurnOnDisplay()
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def sleep(self):
self.send_command(0x10) # DEEP_SLEEP_MODE
self.send_data(0x01)
epdconfig.delay_ms(2000)
epdconfig.module_exit()
### END OF FILE ###