# ***************************************************************************** # * | File : epd7in5.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 = 800 EPD_HEIGHT = 480 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 Voltage_Frame_7IN5_V2 = [ 0x6, 0x3F, 0x3F, 0x11, 0x24, 0x7, 0x17, ] LUT_VCOM_7IN5_V2 = [ 0x0, 0xF, 0xF, 0x0, 0x0, 0x1, 0x0, 0xF, 0x1, 0xF, 0x1, 0x2, 0x0, 0xF, 0xF, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ] LUT_WW_7IN5_V2 = [ 0x10, 0xF, 0xF, 0x0, 0x0, 0x1, 0x84, 0xF, 0x1, 0xF, 0x1, 0x2, 0x20, 0xF, 0xF, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ] LUT_BW_7IN5_V2 = [ 0x10, 0xF, 0xF, 0x0, 0x0, 0x1, 0x84, 0xF, 0x1, 0xF, 0x1, 0x2, 0x20, 0xF, 0xF, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ] LUT_WB_7IN5_V2 = [ 0x80, 0xF, 0xF, 0x0, 0x0, 0x1, 0x84, 0xF, 0x1, 0xF, 0x1, 0x2, 0x40, 0xF, 0xF, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ] LUT_BB_7IN5_V2 = [ 0x80, 0xF, 0xF, 0x0, 0x0, 0x1, 0x84, 0xF, 0x1, 0xF, 0x1, 0x2, 0x40, 0xF, 0xF, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ] Lut_all_fresh=[0x67, 0xBF, 0x3F, 0x0D, 0x00, 0x1C, #VCOM 0x00, 0x32, 0x32, 0x00, 0x00, 0x01, 0x00, 0x0A, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, #WW 0x60, 0x32, 0x32, 0x00, 0x00, 0x01, 0x60, 0x0A, 0x0A, 0x00, 0x00, 0x00, 0x80, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, #BW 0x60, 0x32, 0x32, 0x00, 0x00, 0x01, 0x60, 0x0A, 0x0A, 0x00, 0x00, 0x00, 0x80, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, #WB 0x90, 0x32, 0x32, 0x00, 0x00, 0x01, 0x60, 0x0A, 0x0A, 0x00, 0x00, 0x00, 0x40, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, #BB 0x90, 0x32, 0x32, 0x00, 0x00, 0x01, 0x60, 0x0A, 0x0A, 0x00, 0x00, 0x00, 0x40, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, #Reserved 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, ] Lut_partial=[0x67, 0xBF, 0x3F, 0x0D, 0x00, 0x1C, #VCOM 0x00, 0x14, 0x02, 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, #WW 0x20, 0x14, 0x02, 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, #BW 0x80, 0x14, 0x02, 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, #WB 0x40, 0x14, 0x02, 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, #BB 0x00, 0x14, 0x02, 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, #Reserved 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, ] # Hardware reset def reset(self): epdconfig.digital_write(self.reset_pin, 1) epdconfig.delay_ms(20) epdconfig.digital_write(self.reset_pin, 0) epdconfig.delay_ms(2) epdconfig.digital_write(self.reset_pin, 1) epdconfig.delay_ms(20) 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 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") self.send_command(0x71) busy = epdconfig.digital_read(self.busy_pin) while(busy == 0): self.send_command(0x71) busy = epdconfig.digital_read(self.busy_pin) epdconfig.delay_ms(20) logger.debug("e-Paper busy release") def SetLut(self, lut_vcom, lut_ww, lut_bw, lut_wb, lut_bb): self.send_command(0x20) for count in range(0, 42): self.send_data(lut_vcom[count]) self.send_command(0x21) for count in range(0, 42): self.send_data(lut_ww[count]) self.send_command(0x22) for count in range(0, 42): self.send_data(lut_bw[count]) self.send_command(0x23) for count in range(0, 42): self.send_data(lut_wb[count]) self.send_command(0x24) for count in range(0, 42): self.send_data(lut_bb[count]) def init(self): if (epdconfig.module_init() != 0): return -1 # EPD hardware init start self.reset() # self.send_command(0x06) # btst # self.send_data(0x17) # self.send_data(0x17) # self.send_data(0x28) # If an exception is displayed, try using 0x38 # self.send_data(0x17) # self.send_command(0x01) #POWER SETTING # self.send_data(0x07) # self.send_data(0x07) #VGH=20V,VGL=-20V # self.send_data(0x3f) #VDH=15V # self.send_data(0x3f) #VDL=-15V self.send_command(0x01) # power setting self.send_data(0x17) # 1-0=11: internal power self.send_data(self.Voltage_Frame_7IN5_V2[6]) # VGH&VGL self.send_data(self.Voltage_Frame_7IN5_V2[1]) # VSH self.send_data(self.Voltage_Frame_7IN5_V2[2]) # VSL self.send_data(self.Voltage_Frame_7IN5_V2[3]) # VSHR self.send_command(0x82) # VCOM DC Setting self.send_data(self.Voltage_Frame_7IN5_V2[4]) # VCOM self.send_command(0x06) # Booster Setting self.send_data(0x27) self.send_data(0x27) self.send_data(0x2F) self.send_data(0x17) self.send_command(0x30) # OSC Setting self.send_data(self.Voltage_Frame_7IN5_V2[0]) # 3C=50Hz, 3A=100HZ self.send_command(0x04) # POWER ON epdconfig.delay_ms(100) self.ReadBusy() self.send_command(0X00) # PANNEL SETTING self.send_data(0x3F) # KW-3f KWR-2F BWROTP-0f BWOTP-1f self.send_command(0x61) # tres self.send_data(0x03) # source 800 self.send_data(0x20) self.send_data(0x01) # gate 480 self.send_data(0xE0) self.send_command(0X15) self.send_data(0x00) self.send_command(0X50) # VCOM AND DATA INTERVAL SETTING self.send_data(0x10) self.send_data(0x07) self.send_command(0X60) # TCON SETTING self.send_data(0x22) self.send_command(0x65) # Resolution setting self.send_data(0x00) self.send_data(0x00) # 800*480 self.send_data(0x00) self.send_data(0x00) self.SetLut(self.LUT_VCOM_7IN5_V2, self.LUT_WW_7IN5_V2, self.LUT_BW_7IN5_V2, self.LUT_WB_7IN5_V2, self.LUT_BB_7IN5_V2) # EPD hardware init end return 0 def Epaper_LUT_By_MCU(self,wavedata): VCEND=wavedata[0]&0x08 BDEND=(wavedata[1]&0xC0)>>6 EVS=VCEND|BDEND PLL=(wavedata[0]&0xF0)>>4 XON=wavedata[2]&0xC0 self.send_command(0x52) #EVS self.send_data(EVS) self.send_command(0x30) #PLL setting self.send_data(PLL) self.send_command(0x01) #Set VGH VGL VSH VSL VSHR self.send_data (0x17) self.send_data (wavedata[0]&0x07) #VGH/VGL Voltage Level selection self.send_data (wavedata[1]&0x3F) #VSH for black self.send_data (wavedata[2]&0x3F) #VSL for white self.send_data (wavedata[3]&0x3F) #VSHR for red self.send_command(0x2A) #LUTOPT self.send_data(XON) self.send_data(wavedata[4]) self.send_command(0x82) #VCOM_DC setting self.send_data (wavedata[5]) #Vcom value self.send_command(0x20) self.send_data2(wavedata[6:48]) self.send_command(0x21) self.send_data2(wavedata[48:90]) self.send_command(0x22) self.send_data2(wavedata[90:132]) self.send_command(0x23) self.send_data2(wavedata[132:174]) self.send_command(0x24) self.send_data2(wavedata[174:216]) def init2(self): if (epdconfig.module_init() != 0): return -1 # EPD hardware init start self.reset() self.send_command(0x00) # Panel setting self.send_data(0x3F) self.send_command(0x06) # Booster Setting self.send_data(0x17) self.send_data(0x17) self.send_data(0x28) self.send_data(0x18) self.send_command(0x50) # VCOM and DATA interval setting self.send_data(0x22) self.send_data(0x07) self.send_command(0x60) # TCON setting self.send_data(0x22) # S-G G-S self.send_command(0x61) # Resolution setting self.send_data(0x03)#800*480 self.send_data(0x20) self.send_data(0x01) self.send_data(0xE0) self.send_command(0x65) # Resolution setting self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_command(0x04) #POWER ON epdconfig.delay_ms(100) self.ReadBusy() return 0 def init_fast(self): self.init2() self.Epaper_LUT_By_MCU(self.Lut_all_fresh) return 0 def init_part(self): self.init2() self.Epaper_LUT_By_MCU(self.Lut_partial) return 0 def getbuffer(self, image): img = image imwidth, imheight = img.size if(imwidth == self.width and imheight == self.height): img = img.convert('1') elif(imwidth == self.height and imheight == self.width): # image has correct dimensions, but needs to be rotated img = img.rotate(90, expand=True).convert('1') else: logger.warning("Wrong image dimensions: must be " + str(self.width) + "x" + str(self.height)) # return a blank buffer return [0x00] * (int(self.width/8) * self.height) buf = bytearray(img.tobytes('raw')) # The bytes need to be inverted, because in the PIL world 0=black and 1=white, but # in the e-paper world 0=white and 1=black. for i in range(len(buf)): buf[i] ^= 0xFF return buf def display(self, image): if(self.width % 8 == 0): Width = self.width // 8 else: Width = self.width // 8 +1 Height = self.height image1 = [0xFF] * int(self.width * self.height / 8) for j in range(Height): for i in range(Width): image1[i + j * Width] = ~image[i + j * Width] self.send_command(0x10) self.send_data2(image1) self.send_command(0x13) self.send_data2(image) self.send_command(0x12) epdconfig.delay_ms(100) self.ReadBusy() def Clear(self): self.send_command(0x10) self.send_data2([0xFF] * int(self.width * self.height / 8)) self.send_command(0x13) self.send_data2([0x00] * int(self.width * self.height / 8)) self.send_command(0x12) epdconfig.delay_ms(100) self.ReadBusy() def display_Partial(self, Image, Xstart, Ystart, Xend, Yend): if((Xstart % 8 + Xend % 8 == 8 & Xstart % 8 > Xend % 8) | Xstart % 8 + Xend % 8 == 0 | (Xend - Xstart)%8 == 0): Xstart = Xstart // 8 * 8 Xend = Xend // 8 * 8 else: Xstart = Xstart // 8 * 8 if Xend % 8 == 0: Xend = Xend // 8 * 8 else: Xend = Xend // 8 * 8 + 1 Width = (Xend - Xstart) // 8 Height = Yend - Ystart self.send_command(0x50) self.send_data(0xA9) self.send_data(0x07) self.send_command(0x91) #This command makes the display enter partial mode self.send_command(0x90) #resolution setting self.send_data (Xstart//256) self.send_data (Xstart%256) #x-start self.send_data ((Xend-1)//256) self.send_data ((Xend-1)%256) #x-end self.send_data (Ystart//256) # self.send_data (Ystart%256) #y-start self.send_data ((Yend-1)//256) self.send_data ((Yend-1)%256) #y-end self.send_data (0x01) image1 = [0xFF] * int(self.width * self.height / 8) for j in range(Height): for i in range(Width): image1[i + j * Width] = ~Image[i + j * Width] self.send_command(0x13) #Write Black and White image to RAM self.send_data2(image1) self.send_command(0x12) epdconfig.delay_ms(100) self.ReadBusy() def sleep(self): self.send_command(0x02) # POWER_OFF self.ReadBusy() self.send_command(0x07) # DEEP_SLEEP self.send_data(0XA5) epdconfig.delay_ms(2000) epdconfig.module_exit() ### END OF FILE ###