# ***************************************************************************** # * | File : Pico_ePaper-3.7.py # * | Author : Waveshare team # * | Function : Electronic paper driver # * | Info : # *---------------- # * | This version: V1.0 # * | Date : 2021-06-01 # # | 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. # from machine import Pin, SPI import framebuf import utime # Display resolution EPD_WIDTH = 280 EPD_HEIGHT = 480 RST_PIN = 12 DC_PIN = 8 CS_PIN = 9 BUSY_PIN = 13 EPD_3IN7_lut_4Gray_GC =[ 0x2A,0x06,0x15,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#1 0x28,0x06,0x14,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#2 0x20,0x06,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#3 0x14,0x06,0x28,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#4 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#5 0x00,0x02,0x02,0x0A,0x00,0x00,0x00,0x08,0x08,0x02,#6 0x00,0x02,0x02,0x0A,0x00,0x00,0x00,0x00,0x00,0x00,#7 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#8 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#9 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#10 0x22,0x22,0x22,0x22,0x22 ] EPD_3IN7_lut_1Gray_GC =[ 0x2A,0x05,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#1 0x05,0x2A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#2 0x2A,0x15,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#3 0x05,0x0A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#4 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#5 0x00,0x02,0x03,0x0A,0x00,0x02,0x06,0x0A,0x05,0x00,#6 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#7 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#8 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#9 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#10 0x22,0x22,0x22,0x22,0x22 ] EPD_3IN7_lut_1Gray_DU =[ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#1 0x01,0x2A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x0A,0x55,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#3 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#5 0x00,0x00,0x05,0x05,0x00,0x05,0x03,0x05,0x05,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#7 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#9 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x22,0x22,0x22,0x22,0x22 ] EPD_3IN7_lut_1Gray_A2 =[ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#1 0x0A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#2 0x05,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#3 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#4 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#5 0x00,0x00,0x03,0x05,0x00,0x00,0x00,0x00,0x00,0x00,#6 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#7 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#8 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#9 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,#10 0x22,0x22,0x22,0x22,0x22 ] class EPD_3in7: def __init__(self): self.reset_pin = Pin(RST_PIN, Pin.OUT) self.busy_pin = Pin(BUSY_PIN, Pin.IN, Pin.PULL_UP) self.cs_pin = Pin(CS_PIN, Pin.OUT) self.width = EPD_WIDTH self.height = EPD_HEIGHT self.lut_4Gray_GC = EPD_3IN7_lut_4Gray_GC self.lut_1Gray_GC = EPD_3IN7_lut_1Gray_GC self.lut_1Gray_DU = EPD_3IN7_lut_1Gray_DU self.lut_1Gray_A2 = EPD_3IN7_lut_1Gray_A2 self.black = 0x00 self.white = 0xff self.darkgray = 0xaa self.grayish = 0x55 self.spi = SPI(1) self.spi.init(baudrate=4000_000) self.dc_pin = Pin(DC_PIN, Pin.OUT) self.buffer_1Gray = bytearray(self.height * self.width // 8) self.buffer_4Gray = bytearray(self.height * self.width // 4) self.image1Gray = framebuf.FrameBuffer(self.buffer_1Gray, self.width, self.height, framebuf.MONO_HLSB) self.image4Gray = framebuf.FrameBuffer(self.buffer_4Gray, self.width, self.height, framebuf.GS2_HMSB) self.EPD_3IN7_4Gray_init() self.EPD_3IN7_4Gray_Clear() utime.sleep_ms(500) def digital_write(self, pin, value): pin.value(value) def digital_read(self, pin): return pin.value() def delay_ms(self, delaytime): utime.sleep(delaytime / 1000.0) def spi_writebyte(self, data): self.spi.write(bytearray(data)) def module_exit(self): self.digital_write(self.reset_pin, 0) # Hardware reset def reset(self): self.digital_write(self.reset_pin, 1) self.delay_ms(30) self.digital_write(self.reset_pin, 0) self.delay_ms(3) self.digital_write(self.reset_pin, 1) self.delay_ms(30) def send_command(self, command): self.digital_write(self.dc_pin, 0) self.digital_write(self.cs_pin, 0) self.spi_writebyte([command]) self.digital_write(self.cs_pin, 1) def send_data(self, data): self.digital_write(self.dc_pin, 1) self.digital_write(self.cs_pin, 0) self.spi_writebyte([data]) self.digital_write(self.cs_pin, 1) def ReadBusy(self): print("e-Paper busy") while(self.digital_read(self.busy_pin) == 1): # 0: idle, 1: busy self.delay_ms(10) self.delay_ms(200) print("e-Paper busy release") def Load_LUT(self,lut): self.send_command(0x32) for count in range(0, 105): if lut == 0 : self.send_data(self.lut_4Gray_GC[count]) elif lut == 1 : self.send_data(self.lut_1Gray_GC[count]) elif lut == 2 : self.send_data(self.lut_1Gray_DU[count]) elif lut == 3 : self.send_data(self.lut_1Gray_A2[count]) else: print("There is no such lut ") def EPD_3IN7_4Gray_init(self): self.reset() # SWRESET self.send_command(0x12) self.delay_ms(300) self.send_command(0x46) self.send_data(0xF7) self.ReadBusy() self.send_command(0x47) self.send_data(0xF7) self.ReadBusy() self.send_command(0x01) # setting gaet number self.send_data(0xDF) self.send_data(0x01) self.send_data(0x00) self.send_command(0x03) # set gate voltage self.send_data(0x00) self.send_command(0x04) # set source voltage self.send_data(0x41) self.send_data(0xA8) self.send_data(0x32) self.send_command(0x11) # set data entry sequence self.send_data(0x03) self.send_command(0x3C) # set border self.send_data(0x03) self.send_command(0x0C) # set booster strength self.send_data(0xAE) self.send_data(0xC7) self.send_data(0xC3) self.send_data(0xC0) self.send_data(0xC0) self.send_command(0x18) # set internal sensor on self.send_data(0x80) self.send_command(0x2C) # set vcom value self.send_data(0x44) self.send_command(0x37) # set display option, these setting turn on previous function self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_command(0x44) # setting X direction start/end position of RAM self.send_data(0x00) self.send_data(0x00) self.send_data(0x17) self.send_data(0x01) self.send_command(0x45) # setting Y direction start/end position of RAM self.send_data(0x00) self.send_data(0x00) self.send_data(0xDF) self.send_data(0x01) self.send_command(0x22) # Display Update Control 2 self.send_data(0xCF) def EPD_3IN7_1Gray_init(self): self.reset() self.send_command(0x12) self.delay_ms(300) self.send_command(0x46) self.send_data(0xF7) self.ReadBusy() self.send_command(0x47) self.send_data(0xF7) self.ReadBusy() self.send_command(0x01) # setting gaet number self.send_data(0xDF) self.send_data(0x01) self.send_data(0x00) self.send_command(0x03) # set gate voltage self.send_data(0x00) self.send_command(0x04) # set source voltage self.send_data(0x41) self.send_data(0xA8) self.send_data(0x32) self.send_command(0x11) # set data entry sequence self.send_data(0x03) self.send_command(0x3C) # set border self.send_data(0x03) self.send_command(0x0C) # set booster strength self.send_data(0xAE) self.send_data(0xC7) self.send_data(0xC3) self.send_data(0xC0) self.send_data(0xC0) self.send_command(0x18) # set internal sensor on self.send_data(0x80) self.send_command(0x2C) # set vcom value self.send_data(0x44) self.send_command(0x37) # set display option, these setting turn on previous function self.send_data(0x00) # can switch 1 gray or 4 gray self.send_data(0xFF) self.send_data(0xFF) self.send_data(0xFF) self.send_data(0xFF) self.send_data(0x4F) self.send_data(0xFF) self.send_data(0xFF) self.send_data(0xFF) self.send_data(0xFF) self.send_command(0x44) # setting X direction start/end position of RAM self.send_data(0x00) self.send_data(0x00) self.send_data(0x17) self.send_data(0x01) self.send_command(0x45) # setting Y direction start/end position of RAM self.send_data(0x00) self.send_data(0x00) self.send_data(0xDF) self.send_data(0x01) self.send_command(0x22) # Display Update Control 2 self.send_data(0xCF) def EPD_3IN7_4Gray_Clear(self): high = self.height if( self.width % 8 == 0) : wide = self.width // 8 else : wide = self.width // 8 + 1 self.send_command(0x49) self.send_data(0x00) self.send_command(0x4E) self.send_data(0x00) self.send_data(0x00) self.send_command(0x4F) self.send_data(0x00) self.send_data(0x00) self.send_command(0x24) for j in range(0, high): for i in range(0, wide): self.send_data(0Xff) self.send_command(0x4E) self.send_data(0x00) self.send_data(0x00) self.send_command(0x4F) self.send_data(0x00) self.send_data(0x00) self.send_command(0x26) for j in range(0, high): for i in range(0, wide): self.send_data(0Xff) self.Load_LUT(0) self.send_command(0x22) self.send_data(0xC7) self.send_command(0x20) self.ReadBusy() def EPD_3IN7_1Gray_Clear(self): high = self.height if( self.width % 8 == 0) : wide = self.width // 8 else : wide = self.width // 8 + 1 self.send_command(0x4E) self.send_data(0x00) self.send_data(0x00) self.send_command(0x4F) self.send_data(0x00) self.send_data(0x00) self.send_command(0x24) for j in range(0, high): for i in range(0, wide): self.send_data(0Xff) self.Load_LUT(1) self.send_command(0x20) self.ReadBusy() def EPD_3IN7_4Gray_Display(self,Image): self.send_command(0x49) self.send_data(0x00) self.send_command(0x4E) self.send_data(0x00) self.send_data(0x00) self.send_command(0x4F) self.send_data(0x00) self.send_data(0x00) self.send_command(0x24) for i in range(0, 16800): temp3=0 for j in range(0, 2): temp1 = Image[i*2+j] for k in range(0, 2): temp2 = temp1&0x03 if(temp2 == 0x03): temp3 |= 0x01 # white elif(temp2 == 0x00): temp3 |= 0x00 # black elif(temp2 == 0x02): temp3 |= 0x01 # gray1 else: # 0x01 temp3 |= 0x00 # gray2 temp3 <<= 1 temp1 >>= 2 temp2 = temp1&0x03 if(temp2 == 0x03): # white temp3 |= 0x01; elif(temp2 == 0x00): # black temp3 |= 0x00; elif(temp2 == 0x02): temp3 |= 0x01 # gray1 else: # 0x01 temp3 |= 0x00 # gray2 if (( j!=1 ) | ( k!=1 )): temp3 <<= 1 temp1 >>= 2 self.send_data(temp3) # new data self.send_command(0x4E) self.send_data(0x00) self.send_data(0x00) self.send_command(0x4F) self.send_data(0x00) self.send_data(0x00) self.send_command(0x26) for i in range(0, 16800): temp3=0 for j in range(0, 2): temp1 = Image[i*2+j] for k in range(0, 2): temp2 = temp1&0x03 if(temp2 == 0x03): temp3 |= 0x01 # white elif(temp2 == 0x00): temp3 |= 0x00 # black elif(temp2 == 0x02): temp3 |= 0x00 # gray1 else: # 0x01 temp3 |= 0x01 # gray2 temp3 <<= 1 temp1 >>= 2 temp2 = temp1&0x03 if(temp2 == 0x03): # white temp3 |= 0x01; elif(temp2 == 0x00): # black temp3 |= 0x00; elif(temp2 == 0x02): temp3 |= 0x00 # gray1 else: # 0x01 temp3 |= 0x01 # gray2 if (( j!=1 ) | ( k!=1 )): temp3 <<= 1 temp1 >>= 2 self.send_data(temp3) self.Load_LUT(0) self.send_command(0x22) self.send_data(0xC7) self.send_command(0x20) self.ReadBusy() def EPD_3IN7_1Gray_Display(self,Image): high = self.height if( self.width % 8 == 0) : wide = self.width // 8 else : wide = self.width // 8 + 1 self.send_command(0x49) self.send_data(0x00) self.send_command(0x4E) self.send_data(0x00) self.send_data(0x00) self.send_command(0x4F) self.send_data(0x00) self.send_data(0x00) self.send_command(0x24) for j in range(0, high): for i in range(0, wide): self.send_data(Image[i + j * wide]) self.Load_LUT(1) self.send_command(0x20) self.ReadBusy() def EPD_3IN7_1Gray_Display_Part(self,Image): high = self.height if( self.width % 8 == 0) : wide = self.width // 8 else : wide = self.width // 8 + 1 self.send_command(0x44) self.send_data(0x00) self.send_data(0x00) self.send_data((self.width-1) & 0xff) self.send_data(((self.width-1)>>8) & 0x03) self.send_command(0x45) self.send_data(0x00) self.send_data(0x00) self.send_data((self.height-1) & 0xff) self.send_data(((self.height-1)>>8) & 0x03) self.send_command(0x4E) # SET_RAM_X_ADDRESS_COUNTER self.send_data(0x00) self.send_data(0x00) self.send_command(0x4F) # SET_RAM_Y_ADDRESS_COUNTER self.send_data(0x00) self.send_data(0x00) self.send_command(0x24) for j in range(0, high): for i in range(0, wide): self.send_data(Image[i + j * wide]) self.Load_LUT(2) self.send_command(0x20) self.ReadBusy() def Sleep(self): self.send_command(0X10) # deep sleep self.send_data(0x03) if __name__=='__main__': epd = EPD_3in7() epd.image1Gray.fill(0xff) epd.image4Gray.fill(0xff) epd.image4Gray.text("Waveshare", 5, 10, epd.black) epd.image4Gray.text("Pico_ePaper-3.7", 5, 40, epd.black) epd.image4Gray.text("Raspberry Pico", 5, 70, epd.black) epd.EPD_3IN7_4Gray_Display(epd.buffer_4Gray) epd.delay_ms(500) epd.image4Gray.vline(10, 90, 60, epd.black) epd.image4Gray.vline(90, 90, 60, epd.black) epd.image4Gray.hline(10, 90, 80, epd.black) epd.image4Gray.hline(10, 150, 80, epd.black) epd.image4Gray.line(10, 90, 90, 150, epd.black) epd.image4Gray.line(90, 90, 10, 150, epd.black) epd.EPD_3IN7_4Gray_Display(epd.buffer_4Gray) epd.delay_ms(500) epd.image4Gray.rect(10, 180, 50, 80, epd.black) epd.image4Gray.fill_rect(70, 180, 50, 80, epd.black) epd.EPD_3IN7_4Gray_Display(epd.buffer_4Gray) epd.delay_ms(500) epd.image4Gray.fill_rect(0, 270, 280, 30, epd.black) epd.image4Gray.text('GRAY1 with black background',5, 281, epd.white) epd.image4Gray.text('GRAY2 with white background',5, 311, epd.grayish) epd.image4Gray.text('GRAY3 with white background',5, 341, epd.darkgray) epd.image4Gray.text('GRAY4 with white background',5, 371, epd.black) epd.EPD_3IN7_4Gray_Display(epd.buffer_4Gray) epd.delay_ms(500) epd.EPD_3IN7_1Gray_init() for i in range(0, 10): epd.image1Gray.fill_rect(0, 430, 280, 10, epd.white) epd.image1Gray.text(str(i), 136, 431, epd.black) epd.EPD_3IN7_1Gray_Display_Part(epd.buffer_1Gray) epd.Sleep()