# ***************************************************************************** # * | File : epd3in52.py # * | Author : Waveshare team # * | Function : Electronic paper driver # * | Info : # *---------------- # * | This version: V1.0 # * | Date : 2022-07-20 # # | 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 multiprocessing.reduction import recv_handle from . import epdconfig # Display resolution EPD_WIDTH = 240 EPD_HEIGHT = 360 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.Flag = 0 self.WHITE = 0xFF self.BLACK = 0x00 self.Source_Line = 0xAA self.Gate_Line = 0x55 self.UP_BLACK_DOWN_WHITE = 0xF0 self.LEFT_BLACK_RIGHT_WHITE = 0x0F self.Frame = 0x01 self.Crosstalk = 0x02 self.Chessboard = 0x03 self.Image = 0x04 # GC 0.9S lut_R20_GC = [ 0x01,0x0f,0x0f,0x0f,0x01,0x01,0x01, 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, 0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00 ] lut_R21_GC = [ 0x01,0x4f,0x8f,0x0f,0x01,0x01,0x01, 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 ] lut_R22_GC = [ 0x01,0x0f,0x8f,0x0f,0x01,0x01,0x01, 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, 0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00 ] lut_R23_GC = [ 0x01,0x4f,0x8f,0x4f,0x01,0x01,0x01, 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, 0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00 ] lut_R24_GC = [ 0x01,0x0f,0x8f,0x4f,0x01,0x01,0x01, 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 ] # DU 0.3s lut_R20_DU = [ 0x01,0x0f,0x01,0x00,0x00,0x01,0x01, 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, 0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00 ] lut_R21_DU = [ 0x01,0x0f,0x01,0x00,0x00,0x01,0x01, 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 ] lut_R22_DU = [ 0x01,0x8f,0x01,0x00,0x00,0x01,0x01, 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, 0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00 ] lut_R23_DU = [ 0x01,0x4f,0x01,0x00,0x00,0x01,0x01, 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, 0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00 ] lut_R24_DU = [ 0x01,0x0f,0x01,0x00,0x00,0x01,0x01, 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 ] lut_vcom = [ 0x01,0x19,0x19,0x19,0x19,0x01,0x01, 0x01,0x19,0x19,0x19,0x01,0x01,0x01, 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 ] lut_ww = [ 0x01,0x59,0x99,0x59,0x99,0x01,0x01, 0x01,0x59,0x99,0x19,0x01,0x01,0x01, 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 ] lut_bw = [ 0x01,0x59,0x99,0x59,0x99,0x01,0x01, 0x01,0x59,0x99,0x19,0x01,0x01,0x01, 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 ] lut_wb = [ 0x01,0x19,0x99,0x59,0x99,0x01,0x01, 0x01,0x59,0x99,0x59,0x01,0x01,0x01, 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 ] lut_bb = [ 0x01,0x19,0x99,0x59,0x99,0x01,0x01, 0x01,0x59,0x99,0x59,0x01,0x01,0x01, 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 ] # 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(2) 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) # send a lot of data def send_data2(self, data): epdconfig.digital_write(self.dc_pin, 1) epdconfig.digital_write(self.cs_pin, 0) epdconfig.spi_writebyte2(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: busy, 1: idle epdconfig.delay_ms(5) logger.debug("e-Paper busy release") def lut(self) : self.send_command(0x20) # vcom self.send_data2(self.lut_vcom[:42]) self.send_command(0x21) # ww -- self.send_data2(self.lut_ww[:42]) self.send_command(0x22) # bw r self.send_data2(self.lut_bw[:42]) self.send_command(0x23) # wb w self.send_data2(self.lut_bb[:42]) self.send_command(0x24) # bb b self.send_data2(self.lut_wb[:42]) def refresh(self): self.send_command(0x17) self.send_data(0xA5) self.ReadBusy() epdconfig.delay_ms(200) # LUT download def lut_GC(self): self.send_command(0x20); # vcom self.send_data2(self.lut_R20_GC[:56]) self.send_command(0x21); # red not use self.send_data2(self.lut_R21_GC[:42]) self.send_command(0x24); # bb b self.send_data2(self.lut_R24_GC[:42]) if(self.Flag == 0) : self.send_command(0x22); # bw r self.send_data2(self.lut_R22_GC[:56]) self.send_command(0x23); # wb w self.send_data2(self.lut_R23_GC[:42]) self.Flag = 1 else : self.send_command(0x22); # bw r self.send_data2(self.lut_R23_GC[:56]) self.send_command(0x23); # wb w self.send_data2(self.lut_R22_GC[:42]) self.Flag = 0 # LUT download def lut_DU(self): self.send_command(0x20); # vcom self.send_data2(self.lut_R20_DU[:56]) self.send_command(0x21); # red not use self.send_data2(self.lut_R21_DU[:42]) self.send_command(0x24); # bb b self.send_data2(self.lut_R24_DU[:42]) if(self.Flag == 0) : self.send_command(0x22); # bw r self.send_data2(self.lut_R22_DU[:56]) self.send_command(0x23); # wb w self.send_data2(self.lut_R23_DU[:42]) self.Flag = 1 else : self.send_command(0x22); # bw r self.send_data2(self.lut_R23_DU[:56]) self.send_command(0x23); # wb w self.send_data2(self.lut_R22_DU[:42]) self.Flag = 0 def init(self): if (epdconfig.module_init() != 0): return -1 # EPD hardware init start self.Flag = 0 self.reset() self.send_command(0x00) # panel setting PSR self.send_data(0xFF) # RES1 RES0 REG KW/R UD SHL SHD_N RST_N self.send_data(0x01) # x x x VCMZ TS_AUTO TIGE NORG VC_LUTZ self.send_command(0x01) # POWER SETTING PWR self.send_data(0x03) # x x x x x x VDS_EN VDG_EN self.send_data(0x10) # x x x VCOM_SLWE VGH[3:0] VGH=20V, VGL=-20V self.send_data(0x3F) # x x VSH[5:0] VSH = 15V self.send_data(0x3F) # x x VSL[5:0] VSL=-15V self.send_data(0x03) # OPTEN VDHR[6:0] VHDR=6.4V # T_VDS_OFF[1:0] 00=1 frame; 01=2 frame; 10=3 frame; 11=4 frame self.send_command(0x06) # booster soft start BTST self.send_data(0x37) # BT_PHA[7:0] self.send_data(0x3D) # BT_PHB[7:0] self.send_data(0x3D) # x x BT_PHC[5:0] self.send_command(0x60) # TCON setting TCON self.send_data(0x22) # S2G[3:0] G2S[3:0] non-overlap = 12 self.send_command(0x82) # VCOM_DC setting VDCS self.send_data(0x07) # x VDCS[6:0] VCOM_DC value= -1.9v 00~3f,0x12=-1.9v self.send_command(0x30) self.send_data(0x09) self.send_command(0xe3) # power saving PWS self.send_data(0x88) # VCOM_W[3:0] SD_W[3:0] self.send_command(0x61) # resoultion setting self.send_data(0xf0) # HRES[7:3] 0 0 0 self.send_data(0x01) # x x x x x x x VRES[8] self.send_data(0x68) # VRES[7:0] self.send_command(0x50); self.send_data(0xB7); return 0 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 display(self, image): if (image == None): return self.send_command(0x13); # Transfer new data self.send_data2(image) def display_NUM(self, NUM): # pcnt = 0 self.send_command(0x13); #Transfer new data for column in range(0, self.height): for row in range(0, self.width//8): if NUM == self.WHITE: self.send_data(0xFF) elif NUM == self.BLACK: self.send_data(0x00) elif NUM == self.Source_Line: self.send_data(0xAA) elif NUM == self.Gate_Line: if(column%2): self.send_data(0xff) # An odd number of Gate line else: self.send_data(0x00) # The even line Gate elif NUM == self.Chessboard: if(row>=(self.width/8/2) and column>=(self.height/2)): self.send_data(0xff) elif(row<(self.width/8/2) and column<(self.height/2)): self.send_data(0xff) else: self.send_data(0x00) elif NUM == self.LEFT_BLACK_RIGHT_WHITE: if(row>=(self.width/8/2)): self.send_data(0xff) else: self.send_data(0x00) elif NUM == self.UP_BLACK_DOWN_WHITE: if(column>=(self.height/2)): self.send_data(0xFF) else: self.send_data(0x00) elif NUM == self.Frame: if(column==0 or column==(self.height-1)): self.send_data(0x00) elif(row==0): self.send_data(0x7F) elif(row==(self.width/8-1)): self.send_data(0xFE); else: self.send_data(0xFF); elif NUM == self.Crosstalk: if((row>=(self.width/8/3) and row<=(self.width/8/3*2) and column<=(self.height/3)) or (row>=(self.width/8/3) and row<=(self.width/8/3*2) and column>=(self.height/3*2))): self.send_data(0x00) else: self.send_data(0xFF) elif NUM == self.Image: epdconfig.delay_ms(1) # self.send_data(gImage_1[pcnt++]) def Clear(self): self.send_command(0x13); # Transfer new data self.send_data2([0xFF] * int(self.width * self.height / 8)) self.lut_GC() self.refresh() def sleep(self): self.send_command(0X07) # DEEP_SLEEP_MODE self.send_data(0xA5) epdconfig.delay_ms(2000) epdconfig.module_exit() ### END OF FILE ###