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- # *****************************************************************************
- # * | File : epd2in13_V2.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
- import numpy as np
- # Display resolution
- EPD_WIDTH = 122
- EPD_HEIGHT = 250
- 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
-
- FULL_UPDATE = 0
- PART_UPDATE = 1
- lut_full_update= [
- 0x80,0x60,0x40,0x00,0x00,0x00,0x00, #LUT0: BB: VS 0 ~7
- 0x10,0x60,0x20,0x00,0x00,0x00,0x00, #LUT1: BW: VS 0 ~7
- 0x80,0x60,0x40,0x00,0x00,0x00,0x00, #LUT2: WB: VS 0 ~7
- 0x10,0x60,0x20,0x00,0x00,0x00,0x00, #LUT3: WW: VS 0 ~7
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00, #LUT4: VCOM: VS 0 ~7
- 0x03,0x03,0x00,0x00,0x02, # TP0 A~D RP0
- 0x09,0x09,0x00,0x00,0x02, # TP1 A~D RP1
- 0x03,0x03,0x00,0x00,0x02, # TP2 A~D RP2
- 0x00,0x00,0x00,0x00,0x00, # TP3 A~D RP3
- 0x00,0x00,0x00,0x00,0x00, # TP4 A~D RP4
- 0x00,0x00,0x00,0x00,0x00, # TP5 A~D RP5
- 0x00,0x00,0x00,0x00,0x00, # TP6 A~D RP6
- 0x15,0x41,0xA8,0x32,0x30,0x0A,
- ]
- lut_partial_update = [ #20 bytes
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00, #LUT0: BB: VS 0 ~7
- 0x80,0x00,0x00,0x00,0x00,0x00,0x00, #LUT1: BW: VS 0 ~7
- 0x40,0x00,0x00,0x00,0x00,0x00,0x00, #LUT2: WB: VS 0 ~7
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00, #LUT3: WW: VS 0 ~7
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00, #LUT4: VCOM: VS 0 ~7
- 0x0A,0x00,0x00,0x00,0x00, # TP0 A~D RP0
- 0x00,0x00,0x00,0x00,0x00, # TP1 A~D RP1
- 0x00,0x00,0x00,0x00,0x00, # TP2 A~D RP2
- 0x00,0x00,0x00,0x00,0x00, # TP3 A~D RP3
- 0x00,0x00,0x00,0x00,0x00, # TP4 A~D RP4
- 0x00,0x00,0x00,0x00,0x00, # TP5 A~D RP5
- 0x00,0x00,0x00,0x00,0x00, # TP6 A~D RP6
- 0x15,0x41,0xA8,0x32,0x30,0x0A,
- ]
-
- # 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):
- while(epdconfig.digital_read(self.busy_pin) == 1): # 0: idle, 1: busy
- epdconfig.delay_ms(100)
- def TurnOnDisplay(self):
- self.send_command(0x22)
- self.send_data(0xC7)
- self.send_command(0x20)
- self.ReadBusy()
-
- def TurnOnDisplayPart(self):
- self.send_command(0x22)
- self.send_data(0x0c)
- self.send_command(0x20)
- self.ReadBusy()
-
- def init(self, update):
- if (epdconfig.module_init() != 0):
- return -1
- # EPD hardware init start
- self.reset()
- if(update == self.FULL_UPDATE):
- self.ReadBusy()
- 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(0xF9)
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_command(0x11) #data entry mode
- self.send_data(0x01)
- self.send_command(0x44) #set Ram-X address start/end position
- self.send_data(0x00)
- self.send_data(0x0F) #0x0C-->(15+1)*8=128
- self.send_command(0x45) #set Ram-Y address start/end position
- self.send_data(0xF9) #0xF9-->(249+1)=250
- self.send_data(0x00)
- self.send_data(0x00)
- self.send_data(0x00)
-
- self.send_command(0x3C) #BorderWavefrom
- self.send_data(0x03)
- self.send_command(0x2C) #VCOM Voltage
- self.send_data(0x55) #
- self.send_command(0x03)
- self.send_data(self.lut_full_update[70])
- self.send_command(0x04) #
- self.send_data(self.lut_full_update[71])
- self.send_data(self.lut_full_update[72])
- self.send_data(self.lut_full_update[73])
- self.send_command(0x3A) #Dummy Line
- self.send_data(self.lut_full_update[74])
- self.send_command(0x3B) #Gate time
- self.send_data(self.lut_full_update[75])
- self.send_command(0x32)
- for count in range(70):
- self.send_data(self.lut_full_update[count])
- 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 0X127
- self.send_data(0xF9)
- self.send_data(0x00)
- self.ReadBusy()
- else:
- self.send_command(0x2C) #VCOM Voltage
- self.send_data(0x26)
- self.ReadBusy()
- self.send_command(0x32)
- for count in range(70):
- self.send_data(self.lut_partial_update[count])
- self.send_command(0x37)
- 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_command(0x22)
- self.send_data(0xC0)
- self.send_command(0x20)
- self.ReadBusy()
- self.send_command(0x3C) #BorderWavefrom
- self.send_data(0x01)
- return 0
- def getbuffer(self, image):
- if self.width%8 == 0:
- linewidth = int(self.width/8)
- else:
- linewidth = int(self.width/8) + 1
-
- buf = [0xFF] * (linewidth * self.height)
- image_monocolor = image.convert('1')
- imwidth, imheight = image_monocolor.size
- pixels = image_monocolor.load()
-
- if(imwidth == self.width and imheight == self.height):
- logger.debug("Vertical")
- for y in range(imheight):
- for x in range(imwidth):
- if pixels[x, y] == 0:
- x = imwidth - x
- buf[int(x / 8) + y * linewidth] &= ~(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:
- newy = imwidth - newy - 1
- buf[int(newx / 8) + newy*linewidth] &= ~(0x80 >> (y % 8))
- return buf
-
-
- def display(self, image):
- if self.width%8 == 0:
- linewidth = int(self.width/8)
- else:
- linewidth = int(self.width/8) + 1
- self.send_command(0x24)
- for j in range(0, self.height):
- for i in range(0, linewidth):
- self.send_data(image[i + j * linewidth])
- self.TurnOnDisplay()
-
- def displayPartial(self, image):
- if self.width%8 == 0:
- linewidth = int(self.width/8)
- else:
- linewidth = int(self.width/8) + 1
- self.send_command(0x24)
- for j in range(0, self.height):
- for i in range(0, linewidth):
- self.send_data(image[i + j * linewidth])
-
-
- self.send_command(0x26)
- for j in range(0, self.height):
- for i in range(0, linewidth):
- self.send_data(~image[i + j * linewidth])
- self.TurnOnDisplayPart()
- def displayPartBaseImage(self, image):
- if self.width%8 == 0:
- linewidth = int(self.width/8)
- else:
- linewidth = int(self.width/8) + 1
- self.send_command(0x24)
- for j in range(0, self.height):
- for i in range(0, linewidth):
- self.send_data(image[i + j * linewidth])
-
-
- self.send_command(0x26)
- for j in range(0, self.height):
- for i in range(0, linewidth):
- self.send_data(image[i + j * linewidth])
- self.TurnOnDisplay()
-
- def Clear(self, color):
- if self.width%8 == 0:
- linewidth = int(self.width/8)
- else:
- linewidth = int(self.width/8) + 1
- # logger.debug(linewidth)
-
- self.send_command(0x24)
- for j in range(0, self.height):
- for i in range(0, linewidth):
- self.send_data(color)
-
- # self.send_command(0x26)
- # for j in range(0, self.height):
- # for i in range(0, linewidth):
- # self.send_data(color)
-
- self.TurnOnDisplay()
- def sleep(self):
- # self.send_command(0x22) #POWER OFF
- # self.send_data(0xC3)
- # self.send_command(0x20)
- self.send_command(0x10) #enter deep sleep
- self.send_data(0x03)
- epdconfig.delay_ms(2000)
- epdconfig.module_exit()
- ### END OF FILE ###
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