# ***************************************************************************** # * | File : epd4in2.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 from PIL import Image import RPi.GPIO as GPIO # Display resolution EPD_WIDTH = 400 EPD_HEIGHT = 300 GRAY1 = 0xff #white GRAY2 = 0xC0 GRAY3 = 0x80 #gray GRAY4 = 0x00 #Blackest 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_vcom0 = [ 0x00, 0x17, 0x00, 0x00, 0x00, 0x02, 0x00, 0x17, 0x17, 0x00, 0x00, 0x02, 0x00, 0x0A, 0x01, 0x00, 0x00, 0x01, 0x00, 0x0E, 0x0E, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, ] lut_ww = [ 0x40, 0x17, 0x00, 0x00, 0x00, 0x02, 0x90, 0x17, 0x17, 0x00, 0x00, 0x02, 0x40, 0x0A, 0x01, 0x00, 0x00, 0x01, 0xA0, 0x0E, 0x0E, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, ] lut_bw = [ 0x40, 0x17, 0x00, 0x00, 0x00, 0x02, 0x90, 0x17, 0x17, 0x00, 0x00, 0x02, 0x40, 0x0A, 0x01, 0x00, 0x00, 0x01, 0xA0, 0x0E, 0x0E, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, ] lut_wb = [ 0x80, 0x17, 0x00, 0x00, 0x00, 0x02, 0x90, 0x17, 0x17, 0x00, 0x00, 0x02, 0x80, 0x0A, 0x01, 0x00, 0x00, 0x01, 0x50, 0x0E, 0x0E, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, ] lut_bb = [ 0x80, 0x17, 0x00, 0x00, 0x00, 0x02, 0x90, 0x17, 0x17, 0x00, 0x00, 0x02, 0x80, 0x0A, 0x01, 0x00, 0x00, 0x01, 0x50, 0x0E, 0x0E, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, ] #******************************partial screen update LUT*********************************/ EPD_4IN2_Partial_lut_vcom1 =[ 0x00 ,0x19 ,0x01 ,0x00 ,0x00 ,0x01, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00, ] EPD_4IN2_Partial_lut_ww1 =[ 0x00 ,0x19 ,0x01 ,0x00 ,0x00 ,0x01, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00,] EPD_4IN2_Partial_lut_bw1 =[ 0x80 ,0x19 ,0x01 ,0x00 ,0x00 ,0x01, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, ] EPD_4IN2_Partial_lut_wb1 =[ 0x40 ,0x19 ,0x01 ,0x00 ,0x00 ,0x01, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, ] EPD_4IN2_Partial_lut_bb1 =[ 0x00 ,0x19 ,0x01 ,0x00 ,0x00 ,0x01, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, ] #******************************gray*********************************/ #0~3 gray EPD_4IN2_4Gray_lut_vcom =[ 0x00 ,0x0A ,0x00 ,0x00 ,0x00 ,0x01, 0x60 ,0x14 ,0x14 ,0x00 ,0x00 ,0x01, 0x00 ,0x14 ,0x00 ,0x00 ,0x00 ,0x01, 0x00 ,0x13 ,0x0A ,0x01 ,0x00 ,0x01, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ] #R21 EPD_4IN2_4Gray_lut_ww =[ 0x40 ,0x0A ,0x00 ,0x00 ,0x00 ,0x01, 0x90 ,0x14 ,0x14 ,0x00 ,0x00 ,0x01, 0x10 ,0x14 ,0x0A ,0x00 ,0x00 ,0x01, 0xA0 ,0x13 ,0x01 ,0x00 ,0x00 ,0x01, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, ] #R22H r EPD_4IN2_4Gray_lut_bw =[ 0x40 ,0x0A ,0x00 ,0x00 ,0x00 ,0x01, 0x90 ,0x14 ,0x14 ,0x00 ,0x00 ,0x01, 0x00 ,0x14 ,0x0A ,0x00 ,0x00 ,0x01, 0x99 ,0x0C ,0x01 ,0x03 ,0x04 ,0x01, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, ] #R23H w EPD_4IN2_4Gray_lut_wb =[ 0x40 ,0x0A ,0x00 ,0x00 ,0x00 ,0x01, 0x90 ,0x14 ,0x14 ,0x00 ,0x00 ,0x01, 0x00 ,0x14 ,0x0A ,0x00 ,0x00 ,0x01, 0x99 ,0x0B ,0x04 ,0x04 ,0x01 ,0x01, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, ] #R24H b EPD_4IN2_4Gray_lut_bb =[ 0x80 ,0x0A ,0x00 ,0x00 ,0x00 ,0x01, 0x90 ,0x14 ,0x14 ,0x00 ,0x00 ,0x01, 0x20 ,0x14 ,0x0A ,0x00 ,0x00 ,0x01, 0x50 ,0x13 ,0x01 ,0x00 ,0x00 ,0x01, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00, ] def ReadBusy(self): epdconfig.send_command(0x71) while(epdconfig.digital_read(self.busy_pin) == 0): # 0: idle, 1: busy epdconfig.send_command(0x71) epdconfig.delay_ms(100) def set_lut(self): epdconfig.send_command(0x20) # vcom for count in range(0, 44): epdconfig.send_data(self.lut_vcom0[count]) epdconfig.send_command(0x21) # ww -- for count in range(0, 42): epdconfig.send_data(self.lut_ww[count]) epdconfig.send_command(0x22) # bw r for count in range(0, 42): epdconfig.send_data(self.lut_bw[count]) epdconfig.send_command(0x23) # wb w for count in range(0, 42): epdconfig.send_data(self.lut_bb[count]) epdconfig.send_command(0x24) # bb b for count in range(0, 42): epdconfig.send_data(self.lut_wb[count]) def Partial_SetLut(self): epdconfig.send_command(0x20); for count in range(0, 44): epdconfig.send_data(self.EPD_4IN2_Partial_lut_vcom1[count]) epdconfig.send_command(0x21); for count in range(0, 42): epdconfig.send_data(self.EPD_4IN2_Partial_lut_ww1[count]) epdconfig.send_command(0x22); for count in range(0, 42): epdconfig.send_data(self.EPD_4IN2_Partial_lut_bw1[count]) epdconfig.send_command(0x23); for count in range(0, 42): epdconfig.send_data(self.EPD_4IN2_Partial_lut_wb1[count]) epdconfig.send_command(0x24); for count in range(0, 42): epdconfig.send_data(self.EPD_4IN2_Partial_lut_bb1[count]) def Gray_SetLut(self): epdconfig.send_command(0x20) #vcom for count in range(0, 42): epdconfig.send_data(self.EPD_4IN2_4Gray_lut_vcom[count]) epdconfig.send_command(0x21) #red not use for count in range(0, 42): epdconfig.send_data(self.EPD_4IN2_4Gray_lut_ww[count]) epdconfig.send_command(0x22) #bw r for count in range(0, 42): epdconfig.send_data(self.EPD_4IN2_4Gray_lut_bw[count]) epdconfig.send_command(0x23) #wb w for count in range(0, 42): epdconfig.send_data(self.EPD_4IN2_4Gray_lut_wb[count]) epdconfig.send_command(0x24) #bb b for count in range(0, 42): epdconfig.send_data(self.EPD_4IN2_4Gray_lut_bb[count]) epdconfig.send_command(0x25) #vcom for count in range(0, 42): epdconfig.send_data(self.EPD_4IN2_4Gray_lut_ww[count]) def init(self): if (epdconfig.module_init() != 0): return -1 # EPD hardware init start epdconfig.reset(200, 5, 200) epdconfig.send_command(0x01) # POWER SETTING epdconfig.send_data(0x03) # VDS_EN, VDG_EN epdconfig.send_data(0x00) # VCOM_HV, VGHL_LV[1], VGHL_LV[0] epdconfig.send_data(0x2b) # VDH epdconfig.send_data(0x2b) # VDL epdconfig.send_command(0x06) # boost soft start epdconfig.send_data(0x17) epdconfig.send_data(0x17) epdconfig.send_data(0x17) epdconfig.send_command(0x04) # POWER_ON self.ReadBusy() epdconfig.send_command(0x00) # panel setting epdconfig.send_data(0xbf) # KW-BF KWR-AF BWROTP 0f epdconfig.send_data(0x0d) epdconfig.send_command(0x30) # PLL setting epdconfig.send_data(0x3c) # 3A 100HZ 29 150Hz 39 200HZ 31 171HZ epdconfig.send_command(0x61) # resolution setting epdconfig.send_data(0x01) epdconfig.send_data(0x90) # 128 epdconfig.send_data(0x01) epdconfig.send_data(0x2c) epdconfig.send_command(0x82) # vcom_DC setting epdconfig.send_data(0x28) epdconfig.send_command(0X50) # VCOM AND DATA INTERVAL SETTING epdconfig.send_data(0x97) # 97white border 77black border VBDF 17|D7 VBDW 97 VBDB 57 VBDF F7 VBDW 77 VBDB 37 VBDR B7 self.set_lut() # EPD hardware init end return 0 def Init_4Gray(self): if (epdconfig.module_init() != 0): return -1 # EPD hardware init start epdconfig.reset(200, 5, 200) epdconfig.send_command(0x01) #POWER SETTING epdconfig.send_data (0x03) epdconfig.send_data (0x00) #VGH=20V,VGL=-20V epdconfig.send_data (0x2b) #VDH=15V epdconfig.send_data (0x2b) #VDL=-15V epdconfig.send_data (0x13) epdconfig.send_command(0x06) #booster soft start epdconfig.send_data (0x17) #A epdconfig.send_data (0x17) #B epdconfig.send_data (0x17) #C epdconfig.send_command(0x04) self.ReadBusy() epdconfig.send_command(0x00) #panel setting epdconfig.send_data(0x3f) #KW-3f KWR-2F BWROTP 0f BWOTP 1f epdconfig.send_command(0x30) #PLL setting epdconfig.send_data (0x3c) #100hz epdconfig.send_command(0x61) #resolution setting epdconfig.send_data (0x01) #400 epdconfig.send_data (0x90) epdconfig.send_data (0x01) #300 epdconfig.send_data (0x2c) epdconfig.send_command(0x82) #vcom_DC setting epdconfig.send_data (0x12) epdconfig.send_command(0X50) #VCOM AND DATA INTERVAL SETTING epdconfig.send_data(0x97) 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("Horizontal") 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("Vertical") 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 = x 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(self, image): epdconfig.send_command(0x92); self.set_lut(); epdconfig.send_command(0x10) for i in range(0, int(self.width * self.height / 8)): epdconfig.send_data(0xFF) epdconfig.send_command(0x13) for i in range(0, int(self.width * self.height / 8)): epdconfig.send_data(image[i]) epdconfig.send_command(0x12) self.ReadBusy() def EPD_4IN2_PartialDisplay(self, X_start, Y_start, X_end, Y_end, Image): # EPD_WIDTH = 400 # EPD_HEIGHT = 300 if(EPD_WIDTH % 8 != 0): Width = int(EPD_WIDTH / 8) + 1; else: Width = int(EPD_WIDTH / 8); Height = EPD_HEIGHT; if(X_start % 8 != 0): X_start = int(X_start/8)*8+8 if(X_end % 8 != 0): X_end = int(X_end/8)*8+8 self.Partial_SetLut(); epdconfig.send_command(0x91); #This command makes the display enter partial mode epdconfig.send_command(0x90); #resolution setting epdconfig.send_data (int(X_start/256)); epdconfig.send_data (int(X_start%256)); #x-start epdconfig.send_data (int(X_end /256)); epdconfig.send_data (int(X_end %256)-1); #x-end epdconfig.send_data (int(Y_start/256)); epdconfig.send_data (int(Y_start%256)); #y-start epdconfig.send_data (int(Y_end/256)); epdconfig.send_data (int(Y_end%256)-1); #y-end epdconfig.send_data (0x28); epdconfig.send_command(0x10); #writes Old data to SRAM for programming for j in range(0, int(Y_end - Y_start)): for i in range(0, int(X_end/8) - int(X_start/8)): epdconfig.send_data(Image[(Y_start + j)*Width + int(X_start/8) + i]); epdconfig.send_command(0x13); #writes New data to SRAM. for j in range(0, int(Y_end - Y_start)): for i in range(0, int(X_end/8) - int(X_start/8)): epdconfig.send_data(~Image[(Y_start + j)*Width + int(X_start/8) + i]); epdconfig.send_command(0x12); #DISPLAY REFRESH epdconfig.delay_ms(200) #The delay here is necessary, 200uS at least!!! self.ReadBusy() def display_4Gray(self, image): epdconfig.send_command(0x92); self.set_lut(); epdconfig.send_command(0x10) for i in range(0, int(EPD_WIDTH * EPD_HEIGHT / 8)): # EPD_WIDTH * EPD_HEIGHT / 4 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) epdconfig.send_command(0x13) for i in range(0, int(EPD_WIDTH * EPD_HEIGHT / 8)): #5808*4 46464 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) self.Gray_SetLut() epdconfig.send_command(0x12) epdconfig.delay_ms(200) self.ReadBusy() # pass def Clear(self): epdconfig.send_command(0x10) for i in range(0, int(self.width * self.height / 8)): epdconfig.send_data(0xFF) epdconfig.send_command(0x13) for i in range(0, int(self.width * self.height / 8)): epdconfig.send_data(0xFF) epdconfig.send_command(0x12) self.ReadBusy() def sleep(self): epdconfig.send_command(0x02) # POWER_OFF self.ReadBusy() epdconfig.send_command(0x07) # DEEP_SLEEP epdconfig.send_data(0XA5) epdconfig.delay_ms(2000) epdconfig.module_exit() ### END OF FILE ###