# ***************************************************************************** # * | 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 ###