# ***************************************************************************** # * | 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 balck GRAY4 = 0x00 #balck class EPD: def __init__(self): self.busy_pin = epdconfig.BUSY_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 ] def ReadBusy(self): logging.debug("e-Paper busy") while(epdconfig.digital_read(self.busy_pin) == 1): # 0: idle, 1: busy epdconfig.delay_ms(10) logging.debug("e-Paper busy release") def init(self, mode): if (epdconfig.module_init() != 0): return -1 # EPD hardware init start epdconfig.reset(200, 5, 200) epdconfig.send_command(0x12) epdconfig.delay_ms(300) epdconfig.send_command(0x46) epdconfig.send_data(0xF7) self.ReadBusy() epdconfig.send_command(0x47) epdconfig.send_data(0xF7) self.ReadBusy() epdconfig.send_command(0x01) # setting gaet number epdconfig.send_data(0xDF) epdconfig.send_data(0x01) epdconfig.send_data(0x00) epdconfig.send_command(0x03) # set gate voltage epdconfig.send_data(0x00) epdconfig.send_command(0x04) # set source voltage epdconfig.send_data(0x41) epdconfig.send_data(0xA8) epdconfig.send_data(0x32) epdconfig.send_command(0x11) # set data entry sequence epdconfig.send_data(0x03) epdconfig.send_command(0x3C) # set border epdconfig.send_data(0x03) epdconfig.send_command(0x0C) # set booster strength epdconfig.send_data(0xAE) epdconfig.send_data(0xC7) epdconfig.send_data(0xC3) epdconfig.send_data(0xC0) epdconfig.send_data(0xC0) epdconfig.send_command(0x18) # set internal sensor on epdconfig.send_data(0x80) epdconfig.send_command(0x2C) # set vcom value epdconfig.send_data(0x44) if(mode == 0): #4Gray epdconfig.send_command(0x37) # set display option, these setting turn on previous function epdconfig.send_data(0x00) epdconfig.send_data(0x00) epdconfig.send_data(0x00) epdconfig.send_data(0x00) epdconfig.send_data(0x00) epdconfig.send_data(0x00) epdconfig.send_data(0x00) epdconfig.send_data(0x00) epdconfig.send_data(0x00) epdconfig.send_data(0x00) elif(mode == 1): #1Gray epdconfig.send_command(0x37) # set display option, these setting turn on previous function epdconfig.send_data(0x00) #can switch 1 gray or 4 gray epdconfig.send_data(0xFF) epdconfig.send_data(0xFF) epdconfig.send_data(0xFF) epdconfig.send_data(0xFF) epdconfig.send_data(0x4F) epdconfig.send_data(0xFF) epdconfig.send_data(0xFF) epdconfig.send_data(0xFF) epdconfig.send_data(0xFF) else: logging.debug("There is no such mode") epdconfig.send_command(0x44) # setting X direction start/end position of RAM epdconfig.send_data(0x00) epdconfig.send_data(0x00) epdconfig.send_data(0x17) epdconfig.send_data(0x01) epdconfig.send_command(0x45) # setting Y direction start/end position of RAM epdconfig.send_data(0x00) epdconfig.send_data(0x00) epdconfig.send_data(0xDF) epdconfig.send_data(0x01) epdconfig.send_command(0x22) # Display Update Control 2 epdconfig.send_data(0xCF) return 0 def load_lut(self, lut): epdconfig.send_command(0x32) for i in range(0, 105): epdconfig.send_data(lut[i]) def getbuffer(self, image): # logging.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() # logging.debug("imwidth = %d, imheight = %d",imwidth,imheight) if(imwidth == self.width and imheight == self.height): logging.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): logging.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): # logging.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 # logging.debug("imwidth = %d, imheight = %d",imwidth,imheight) if(imwidth == self.width and imheight == self.height): logging.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): logging.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 epdconfig.send_command(0x4E) epdconfig.send_data(0x00) epdconfig.send_data(0x00) epdconfig.send_command(0x4F) epdconfig.send_data(0x00) epdconfig.send_data(0x00) epdconfig.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 epdconfig.send_data(temp3) epdconfig.send_command(0x4E) epdconfig.send_data(0x00) epdconfig.send_data(0x00) epdconfig.send_command(0x4F) epdconfig.send_data(0x00) epdconfig.send_data(0x00) epdconfig.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 epdconfig.send_data(temp3) self.load_lut(self.lut_4Gray_GC) epdconfig.send_command(0x22) epdconfig.send_data(0xC7) epdconfig.send_command(0x20) self.ReadBusy() def display_1Gray(self, image): if (image == None): return epdconfig.send_command(0x4E) epdconfig.send_data(0x00) epdconfig.send_data(0x00) epdconfig.send_command(0x4F) epdconfig.send_data(0x00) epdconfig.send_data(0x00) epdconfig.send_command(0x24) for j in range(0, self.height): for i in range(0, int(self.width / 8)): epdconfig.send_data(image[i + j * int(self.width / 8)]) self.load_lut(self.lut_1Gray_A2) epdconfig.send_command(0x20) self.ReadBusy() def Clear(self, color, mode): epdconfig.send_command(0x4E) epdconfig.send_data(0x00) epdconfig.send_data(0x00) epdconfig.send_command(0x4F) epdconfig.send_data(0x00) epdconfig.send_data(0x00) epdconfig.send_command(0x24) for j in range(0, self.height): for i in range(0, int(self.width / 8)): epdconfig.send_data(0xff) if(mode == 0): #4Gray epdconfig.send_command(0x26) for j in range(0, self.height): for i in range(0, int(self.width / 8)): epdconfig.send_data(0xff) self.load_lut(self.lut_4Gray_GC) epdconfig.send_command(0x22) epdconfig.send_data(0xC7) elif(mode == 1): #1Gray self.load_lut(self.lut_1Gray_DU) else: logging.debug("There is no such mode") epdconfig.send_command(0x20) self.ReadBusy() def sleep(self): epdconfig.send_command(0X50) # DEEP_SLEEP_MODE epdconfig.send_data(0xf7) epdconfig.send_command(0X02) #power off epdconfig.send_command(0X07) #deep sleep epdconfig.send_data(0xA5) epdconfig.delay_ms(2000) epdconfig.module_exit() ### END OF FILE ###