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- # *****************************************************************************
- # * | File : epd3in7.py
- # * | Author : Waveshare team
- # * | Function : Electronic paper driver
- # * | Info :
- # *----------------
- # * | This version: V1.0
- # * | Date : 2020-07-16
- # # | 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 = 280
- EPD_HEIGHT = 480
- GRAY1 = 0xff #white
- GRAY2 = 0xC0 #Close to white
- GRAY3 = 0x80 #Close to black
- GRAY4 = 0x00 #black
- 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_4Gray_GC = [
- 0x2A,0x06,0x15,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x28,0x06,0x14,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x20,0x06,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x14,0x06,0x28,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x00,0x02,0x02,0x0A,0x00,0x00,0x00,0x08,0x08,0x02,
- 0x00,0x02,0x02,0x0A,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,
- 0x22,0x22,0x22,0x22,0x22
- ]
- lut_1Gray_GC = [
- 0x2A,0x05,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x05,0x2A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x2A,0x15,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x05,0x0A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x00,0x02,0x03,0x0A,0x00,0x02,0x06,0x0A,0x05,0x00,
- 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,
- 0x22,0x22,0x22,0x22,0x22
- ]
- lut_1Gray_DU = [
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x01,0x2A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x0A,0x55,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x05,0x05,0x00,0x05,0x03,0x05,0x05,0x00,
- 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,
- 0x22,0x22,0x22,0x22,0x22
- ]
- lut_1Gray_A2 = [
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x0A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x05,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x03,0x05,0x00,0x00,0x00,0x00,0x00,0x00,
- 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,
- 0x22,0x22,0x22,0x22,0x22
- ]
-
- # 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(5)
- 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): # 0: idle, 1: busy
- epdconfig.delay_ms(10)
- logger.debug("e-Paper busy release")
- def init(self, mode):
- if (epdconfig.module_init() != 0):
- return -1
- # EPD hardware init start
- self.reset()
-
- self.send_command(0x12)
- epdconfig.delay_ms(300)
-
- self.send_command(0x46)
- self.send_data(0xF7)
- self.ReadBusy()
- self.send_command(0x47)
- self.send_data(0xF7)
- self.ReadBusy()
-
- self.send_command(0x01) # setting gaet number
- self.send_data(0xDF)
- self.send_data(0x01)
- self.send_data(0x00)
- self.send_command(0x03) # set gate voltage
- self.send_data(0x00)
- self.send_command(0x04) # set source voltage
- self.send_data(0x41)
- self.send_data(0xA8)
- self.send_data(0x32)
- self.send_command(0x11) # set data entry sequence
- self.send_data(0x03)
- self.send_command(0x3C) # set border
- self.send_data(0x03)
-
- self.send_command(0x0C) # set booster strength
- self.send_data(0xAE)
- self.send_data(0xC7)
- self.send_data(0xC3)
- self.send_data(0xC0)
- self.send_data(0xC0)
- self.send_command(0x18) # set internal sensor on
- self.send_data(0x80)
-
- self.send_command(0x2C) # set vcom value
- self.send_data(0x44)
-
- if(mode == 0): #4Gray
- self.send_command(0x37) # set display option, these setting turn on previous function
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_data(0x00)
- elif(mode == 1): #1Gray
- self.send_command(0x37) # set display option, these setting turn on previous function
- self.send_data(0x00) #can switch 1 gray or 4 gray
- self.send_data(0xFF)
- self.send_data(0xFF)
- self.send_data(0xFF)
- self.send_data(0xFF)
- self.send_data(0x4F)
- self.send_data(0xFF)
- self.send_data(0xFF)
- self.send_data(0xFF)
- self.send_data(0xFF)
- else:
- logger.debug("There is no such mode")
- self.send_command(0x44) # setting X direction start/end position of RAM
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_data(0x17)
- self.send_data(0x01)
- self.send_command(0x45) # setting Y direction start/end position of RAM
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_data(0xDF)
- self.send_data(0x01)
- self.send_command(0x22) # Display Update Control 2
- self.send_data(0xCF)
- return 0
- def load_lut(self, lut):
- self.send_command(0x32)
- for i in range(0, 105):
- self.send_data(lut[i])
- 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 = imwidth - 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_4Gray(self, image):
- if (image == None):
- return
- self.send_command(0x4E)
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_command(0x4F)
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_command(0x24)
- for i in range(0, (int)(self.height*(self.width/8))):
- 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 |= 0x01 #white
- elif(temp2 == 0x00):
- temp3 |= 0x00 #black
- elif(temp2 == 0x80):
- temp3 |= 0x00 #gray1
- else: #0x40
- temp3 |= 0x01 #gray2
- temp3 <<= 1
- temp1 <<= 2
- temp2 = temp1&0xC0
- if(temp2 == 0xC0): #white
- temp3 |= 0x01
- elif(temp2 == 0x00): #black
- temp3 |= 0x00
- elif(temp2 == 0x80):
- temp3 |= 0x00 #gray1
- else: #0x40
- temp3 |= 0x01 #gray2
- if(j!=1 or k!=1):
- temp3 <<= 1
- temp1 <<= 2
- self.send_data(temp3)
- self.send_command(0x4E)
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_command(0x4F)
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_command(0x26)
- for i in range(0, (int)(self.height*(self.width/8))):
- 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 |= 0x01 #white
- elif(temp2 == 0x00):
- temp3 |= 0x00 #black
- elif(temp2 == 0x80):
- temp3 |= 0x01 #gray1
- else: #0x40
- temp3 |= 0x00 #gray2
- temp3 <<= 1
- temp1 <<= 2
- temp2 = temp1&0xC0
- if(temp2 == 0xC0): #white
- temp3 |= 0x01
- elif(temp2 == 0x00): #black
- temp3 |= 0x00
- elif(temp2 == 0x80):
- temp3 |= 0x01 #gray1
- else: #0x40
- temp3 |= 0x00 #gray2
- if(j!=1 or k!=1):
- temp3 <<= 1
- temp1 <<= 2
- self.send_data(temp3)
- self.load_lut(self.lut_4Gray_GC)
- self.send_command(0x22)
- self.send_data(0xC7)
- self.send_command(0x20)
- self.ReadBusy()
- def display_1Gray(self, image):
- if (image == None):
- return
- self.send_command(0x4E)
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_command(0x4F)
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_command(0x24)
- for j in range(0, self.height):
- for i in range(0, int(self.width / 8)):
- self.send_data(image[i + j * int(self.width / 8)])
- self.load_lut(self.lut_1Gray_A2)
- self.send_command(0x20)
- self.ReadBusy()
-
- def Clear(self, color, mode):
- self.send_command(0x4E)
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_command(0x4F)
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_command(0x24)
- for j in range(0, self.height):
- for i in range(0, int(self.width / 8)):
- self.send_data(0xff)
- if(mode == 0): #4Gray
- self.send_command(0x26)
- for j in range(0, self.height):
- for i in range(0, int(self.width / 8)):
- self.send_data(0xff)
- self.load_lut(self.lut_4Gray_GC)
- self.send_command(0x22)
- self.send_data(0xC7)
- elif(mode == 1): #1Gray
- self.load_lut(self.lut_1Gray_DU)
- else:
- logger.debug("There is no such mode")
- self.send_command(0x20)
- self.ReadBusy()
- def sleep(self):
- self.send_command(0X50) # DEEP_SLEEP_MODE
- self.send_data(0xf7)
- self.send_command(0X02) #power off
- self.send_command(0X07) #deep sleep
- self.send_data(0xA5)
- epdconfig.delay_ms(2000)
- epdconfig.module_exit()
- ### END OF FILE ###
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