# ***************************************************************************** # * | File : epd2in7.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 # Display resolution EPD_WIDTH = 176 EPD_HEIGHT = 264 GRAY1 = 0xff #white GRAY2 = 0xC0 GRAY3 = 0x80 #gray GRAY4 = 0x00 #Blackest 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_vcom_dc = [0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x02, 0x60, 0x28, 0x28, 0x00, 0x00, 0x01, 0x00, 0x14, 0x00, 0x00, 0x00, 0x01, 0x00, 0x12, 0x12, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ] lut_ww = [ 0x40, 0x08, 0x00, 0x00, 0x00, 0x02, 0x90, 0x28, 0x28, 0x00, 0x00, 0x01, 0x40, 0x14, 0x00, 0x00, 0x00, 0x01, 0xA0, 0x12, 0x12, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, ] lut_bw = [ 0x40, 0x08, 0x00, 0x00, 0x00, 0x02, 0x90, 0x28, 0x28, 0x00, 0x00, 0x01, 0x40, 0x14, 0x00, 0x00, 0x00, 0x01, 0xA0, 0x12, 0x12, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, ] lut_bb = [ 0x80, 0x08, 0x00, 0x00, 0x00, 0x02, 0x90, 0x28, 0x28, 0x00, 0x00, 0x01, 0x80, 0x14, 0x00, 0x00, 0x00, 0x01, 0x50, 0x12, 0x12, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, ] lut_wb = [ 0x80, 0x08, 0x00, 0x00, 0x00, 0x02, 0x90, 0x28, 0x28, 0x00, 0x00, 0x01, 0x80, 0x14, 0x00, 0x00, 0x00, 0x01, 0x50, 0x12, 0x12, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, ] ###################full screen update LUT###################### #0~3 gray gray_lut_vcom = [ 0x00, 0x00, 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 gray_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 gray_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 gray_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 gray_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, ] # 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) == 0): # 0: idle, 1: busy epdconfig.delay_ms(200) logger.debug("e-Paper busy release") def set_lut(self): self.send_command(0x20) # vcom for count in range(0, 44): self.send_data(self.lut_vcom_dc[count]) self.send_command(0x21) # ww -- for count in range(0, 42): self.send_data(self.lut_ww[count]) self.send_command(0x22) # bw r for count in range(0, 42): self.send_data(self.lut_bw[count]) self.send_command(0x23) # wb w for count in range(0, 42): self.send_data(self.lut_bb[count]) self.send_command(0x24) # bb b for count in range(0, 42): self.send_data(self.lut_wb[count]) def gray_SetLut(self): self.send_command(0x20) for count in range(0, 44): #vcom self.send_data(self.gray_lut_vcom[count]) self.send_command(0x21) #red not use for count in range(0, 42): self.send_data(self.gray_lut_ww[count]) self.send_command(0x22) #bw r for count in range(0, 42): self.send_data(self.gray_lut_bw[count]) self.send_command(0x23) #wb w for count in range(0, 42): self.send_data(self.gray_lut_wb[count]) self.send_command(0x24) #bb b for count in range(0, 42): self.send_data(self.gray_lut_bb[count]) self.send_command(0x25) #vcom for count in range(0, 42): self.send_data(self.gray_lut_ww[count]) def init(self): if (epdconfig.module_init() != 0): return -1 # EPD hardware init start self.reset() self.send_command(0x01) # POWER_SETTING self.send_data(0x03) # VDS_EN, VDG_EN self.send_data(0x00) # VCOM_HV, VGHL_LV[1], VGHL_LV[0] self.send_data(0x2b) # VDH self.send_data(0x2b) # VDL self.send_data(0x09) # VDHR self.send_command(0x06) # BOOSTER_SOFT_START self.send_data(0x07) self.send_data(0x07) self.send_data(0x17) # Power optimization self.send_command(0xF8) self.send_data(0x60) self.send_data(0xA5) # Power optimization self.send_command(0xF8) self.send_data(0x89) self.send_data(0xA5) # Power optimization self.send_command(0xF8) self.send_data(0x90) self.send_data(0x00) # Power optimization self.send_command(0xF8) self.send_data(0x93) self.send_data(0x2A) # Power optimization self.send_command(0xF8) self.send_data(0xA0) self.send_data(0xA5) # Power optimization self.send_command(0xF8) self.send_data(0xA1) self.send_data(0x00) # Power optimization self.send_command(0xF8) self.send_data(0x73) self.send_data(0x41) self.send_command(0x16) # PARTIAL_DISPLAY_REFRESH self.send_data(0x00) self.send_command(0x04) # POWER_ON self.ReadBusy() self.send_command(0x00) # PANEL_SETTING self.send_data(0xAF) # KW-BF KWR-AF BWROTP 0f self.send_command(0x30) # PLL_CONTROL self.send_data(0x3A) # 3A 100HZ 29 150Hz 39 200HZ 31 171HZ self.send_command(0X50) #VCOM AND DATA INTERVAL SETTING self.send_data(0x57) self.send_command(0x82) # VCM_DC_SETTING_REGISTER self.send_data(0x12) self.set_lut() return 0 def Init_4Gray(self): if (epdconfig.module_init() != 0): return -1 self.reset() self.send_command(0x01) #POWER SETTING self.send_data (0x03) self.send_data (0x00) self.send_data (0x2b) self.send_data (0x2b) self.send_command(0x06) #booster soft start self.send_data (0x07) #A self.send_data (0x07) #B self.send_data (0x17) #C self.send_command(0xF8) #boost?? self.send_data (0x60) self.send_data (0xA5) self.send_command(0xF8) #boost?? self.send_data (0x89) self.send_data (0xA5) self.send_command(0xF8) #boost?? self.send_data (0x90) self.send_data (0x00) self.send_command(0xF8) #boost?? self.send_data (0x93) self.send_data (0x2A) self.send_command(0xF8) #boost?? self.send_data (0xa0) self.send_data (0xa5) self.send_command(0xF8) #boost?? self.send_data (0xa1) self.send_data (0x00) self.send_command(0xF8) #boost?? self.send_data (0x73) self.send_data (0x41) self.send_command(0x16) self.send_data(0x00) self.send_command(0x04) self.ReadBusy() self.send_command(0x00) #panel setting self.send_data(0xbf) #KW-BF KWR-AF BWROTP 0f self.send_command(0x30) #PLL setting self.send_data (0x90) #100hz self.send_command(0x61) #resolution setting self.send_data (0x00) #176 self.send_data (0xb0) self.send_data (0x01) #264 self.send_data (0x08) self.send_command(0x82) #vcom_DC setting self.send_data (0x12) self.send_command(0X50) #VCOM AND DATA INTERVAL SETTING self.send_data(0x57) 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 = self.height - 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(self, image): self.send_command(0x10) for i in range(0, int(self.width * self.height / 8)): self.send_data(0xFF) self.send_command(0x13) for i in range(0, int(self.width * self.height / 8)): self.send_data(image[i]) self.send_command(0x12) self.ReadBusy() def display_4Gray(self, image): self.send_command(0x10) for i in range(0, 5808): #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 |= 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.send_command(0x13) for i in range(0, 5808): #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 self.send_data(temp3) self.gray_SetLut() self.send_command(0x12) epdconfig.delay_ms(200) self.ReadBusy() # pass def Clear(self, color=0xFF): self.send_command(0x10) for i in range(0, int(self.width * self.height / 8)): self.send_data(color) self.send_command(0x13) for i in range(0, int(self.width * self.height / 8)): self.send_data(color) self.send_command(0x12) self.ReadBusy() def sleep(self): self.send_command(0X50) self.send_data(0xf7) self.send_command(0X02) self.send_command(0X07) self.send_data(0xA5) epdconfig.delay_ms(2000) epdconfig.module_exit() ### END OF FILE ###