# ***************************************************************************** # * | File : Pico_ePaper-2.7_V2.py # * | Author : Waveshare team # * | Function : Electronic paper driver # * | Info : # *---------------- # * | This version: V1.0 # * | Date : 2022-03-15 # # | 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 = 176 EPD_HEIGHT = 264 RST_PIN = 12 DC_PIN = 8 CS_PIN = 9 BUSY_PIN = 13 LUT_DATA_4Gray = [ 0x40,0x48,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x8,0x48,0x10,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x2,0x48,0x4,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x20,0x48,0x1,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0xA,0x19,0x0,0x3,0x8,0x0,0x0, 0x14,0x1,0x0,0x14,0x1,0x0,0x3, 0xA,0x3,0x0,0x8,0x19,0x0,0x0, 0x1,0x0,0x0,0x0,0x0,0x0,0x1, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x22,0x22,0x22,0x22,0x22,0x22,0x0,0x0,0x0, 0x22,0x17,0x41,0x0,0x32,0x1C, ] class EPD_2in7_V2: 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.black = 0x00 self.white = 0xff self.darkgray = 0xaa self.grayish = 0x55 self.LUT_DATA_4Gray = LUT_DATA_4Gray self.spi = SPI(1) self.spi.init(baudrate=4000_000) self.dc_pin = Pin(DC_PIN, Pin.OUT) self.buffer_1Gray_Landscape = bytearray(self.height * self.width // 8) self.buffer_1Gray_Portrait = bytearray(self.height * self.width // 8) self.buffer_4Gray = bytearray(self.height * self.width // 4) self.image1Gray_Landscape = framebuf.FrameBuffer(self.buffer_1Gray_Landscape, self.height, self.width, framebuf.MONO_VLSB) self.image1Gray_Portrait = framebuf.FrameBuffer(self.buffer_1Gray_Portrait, self.width, self.height, framebuf.MONO_HLSB) self.image4Gray = framebuf.FrameBuffer(self.buffer_4Gray, self.width, self.height, framebuf.GS2_HMSB) self.init() self.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(200) self.digital_write(self.reset_pin, 0) self.delay_ms(2) self.digital_write(self.reset_pin, 1) self.delay_ms(200) 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 send_data1(self, buf): self.digital_write(self.dc_pin, 1) self.digital_write(self.cs_pin, 0) self.spi.write(bytearray(buf)) self.digital_write(self.cs_pin, 1) def ReadBusy(self): print("e-Paper busy") while(self.digital_read(self.busy_pin) == 1): # 1: idle, 0: busy self.delay_ms(2) self.delay_ms(200) print("e-Paper busy release") def TurnOnDisplay(self): self.send_command(0x22) #Display Update Control self.send_data(0xF7) self.send_command(0x20) #Activate Display Update Sequence self.ReadBusy() def TurnOnDisplay_Fast(self): self.send_command(0x22) #Display Update Control self.send_data(0xC7) self.send_command(0x20) #Activate Display Update Sequence self.ReadBusy() def TurnOnDisplay_Partial(self): self.send_command(0x22) #Display Update Control self.send_data(0xFF) self.send_command(0x20) #Activate Display Update Sequence self.ReadBusy() def TurnOnDisplay_4GRAY(self): self.send_command(0x22) #Display Update Control self.send_data(0xC7) self.send_command(0x20) #Activate Display Update Sequence self.ReadBusy() def Lut(self): self.send_command(0x32) for i in range(159): self.send_data(self.LUT_DATA_4Gray[i]) def init(self): # EPD hardware init start self.reset() self.ReadBusy() self.send_command(0x12) #SWRESET self.ReadBusy() self.send_command(0x45) #set Ram-Y address start/end position self.send_data(0x00) self.send_data(0x00) self.send_data(0x07) #0x0107-->(263+1)=264 self.send_data(0x01) self.send_command(0x4F) # set RAM y address count to 0; self.send_data(0x00) self.send_data(0x00) self.send_command(0x11) # data entry mode self.send_data(0x03) return 0 def init_Fast(self): # EPD hardware init start self.reset() self.ReadBusy() self.send_command(0x12) #SWRESET self.ReadBusy() self.send_command(0x12) #SWRESET self.ReadBusy() self.send_command(0x18) #Read built-in temperature sensor self.send_data(0x80) self.send_command(0x22) # Load temperature value self.send_data(0xB1) self.send_command(0x20) self.ReadBusy() self.send_command(0x1A) # Write to temperature register self.send_data(0x64) self.send_data(0x00) self.send_command(0x45) #set Ram-Y address start/end position self.send_data(0x00) self.send_data(0x00) self.send_data(0x07) #0x0107-->(263+1)=264 self.send_data(0x01) self.send_command(0x4F) # set RAM y address count to 0; self.send_data(0x00) self.send_data(0x00) self.send_command(0x11) # data entry mode self.send_data(0x03) self.send_command(0x22) # Load temperature value self.send_data(0x91) self.send_command(0x20) self.ReadBusy() return 0 def init_4Gray(self): self.reset() self.send_command(0x12) # soft reset self.ReadBusy(); self.send_command(0x74) #set analog block control self.send_data(0x54) self.send_command(0x7E) #set digital block control self.send_data(0x3B) self.send_command(0x01) #Driver output control self.send_data(0x07) self.send_data(0x01) self.send_data(0x00) self.send_command(0x11) #data entry mode self.send_data(0x03) self.send_command(0x44) #set Ram-X address start/end position self.send_data(0x00) self.send_data(0x15) #0x15-->(21+1)*8=176 self.send_command(0x45) #set Ram-Y address start/end position self.send_data(0x00) self.send_data(0x00) self.send_data(0x07) #0x0107-->(263+1)=264 self.send_data(0x01) self.send_command(0x3C) #BorderWavefrom self.send_data(0x00) self.send_command(0x2C) #VCOM Voltage self.send_data(self.LUT_DATA_4Gray[158]) #0x1C self.send_command(0x3F) #EOPQ self.send_data(self.LUT_DATA_4Gray[153]) self.send_command(0x03) #VGH self.send_data(self.LUT_DATA_4Gray[154]) self.send_command(0x04) # self.send_data(self.LUT_DATA_4Gray[155]) #VSH1 self.send_data(self.LUT_DATA_4Gray[156]) #VSH2 self.send_data(self.LUT_DATA_4Gray[157]) #VSL self.Lut() #LUT self.send_command(0x4E) # set RAM x address count to 0; self.send_data(0x00) self.send_command(0x4F) # set RAM y address count to 0X199; self.send_data(0x00) self.send_data(0x00) self.ReadBusy() return 0 def clear(self): if(self.width % 8 == 0): Width = self.width // 8 else: Width = self.width // 8 +1 Height = self.height self.send_command(0x24) self.send_data1([0xff] * Width * Height) self.TurnOnDisplay() def display(self, image): if(self.width % 8 == 0): Width = self.width // 8 else: Width = self.width // 8 +1 Height = self.height self.send_command(0x24) self.send_data1(image) self.TurnOnDisplay() def display_Landscape(self, image): if(self.width % 8 == 0): Width = self.width // 8 else: Width = self.width // 8 +1 Height = self.height self.send_command(0x24) for j in range(Height): for i in range(Width): self.send_data(image[(21-i) * Height + j]) self.TurnOnDisplay() def display_Fast(self, image): if(self.width % 8 == 0): Width = self.width // 8 else: Width = self.width // 8 +1 Height = self.height self.send_command(0x24) self.send_data1(image) self.TurnOnDisplay_Fast() def display_Base(self, image): if(self.width % 8 == 0): Width = self.width // 8 else: Width = self.width // 8 +1 Height = self.height self.send_command(0x24) #Write Black and White image to RAM self.send_data1(image) self.send_command(0x26) #Write Black and White image to RAM self.send_data1(image) self.TurnOnDisplay() def display_Base_color(self, color): if(self.width % 8 == 0): Width = self.width // 8 else: Width = self.width // 8 +1 Height = self.height self.send_command(0x24) #Write Black and White image to RAM self.send_data1([color] * Width * Height) self.send_command(0x26) #Write Black and White image to RAM self.send_data1([color] * Width * Height) # self.TurnOnDisplay() def display_Partial(self, image): if(self.width % 8 == 0): Width = self.width // 8 else: Width = self.width // 8 +1 Height = self.height self.reset() self.send_command(0x3C) #BorderWavefrom self.send_data(0x80) self.send_command(0x24) #Write Black and White image to RAM self.send_data1(image) self.TurnOnDisplay_Partial() def display_4Gray(self, image): self.send_command(0x24) 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&0x03 if(temp2 == 0x03): temp3 |= 0x00 # white elif(temp2 == 0x00): temp3 |= 0x01 # black elif(temp2 == 0x02): temp3 |= 0x00 # gray1 else: # 0x01 temp3 |= 0x01 # gray2 temp3 <<= 1 temp1 >>= 2 temp2 = temp1&0x03 if(temp2 == 0x03): # white temp3 |= 0x00; elif(temp2 == 0x00): # black temp3 |= 0x01; 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.send_command(0x26) 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&0x03 if(temp2 == 0x03): temp3 |= 0x00 # white elif(temp2 == 0x00): temp3 |= 0x01 # black elif(temp2 == 0x02): temp3 |= 0x01 # gray1 else: # 0x01 temp3 |= 0x00 # gray2 temp3 <<= 1 temp1 >>= 2 temp2 = temp1&0x03 if(temp2 == 0x03): # white temp3 |= 0x00; elif(temp2 == 0x00): # black temp3 |= 0x01; elif(temp2 == 0x02): temp3 |= 0x01 # gray1 else: # 0x01 temp3 |= 0x00 # gray2 if(j!=1 or k!=1): temp3 <<= 1 temp1 >>= 2 self.send_data(temp3) self.TurnOnDisplay_4GRAY() def sleep(self): self.send_command(0X10) self.send_data(0x01) if __name__=='__main__': epd = EPD_2in7_V2() epd.image1Gray_Landscape.fill(0xff) epd.image1Gray_Portrait.fill(0xff) epd.image4Gray.fill(0xff) # You are advised to fill the cache area inside the ink screen first. Otherwise, the office brush may be abnormal epd.display_Base_color(0xff) epd.image1Gray_Portrait.text("Waveshare", 5, 5, epd.black) epd.image1Gray_Portrait.text("Pico_ePaper-2.7", 5, 20, epd.black) epd.image1Gray_Portrait.text("Raspberry Pico", 5, 35, epd.black) epd.display_Fast(epd.buffer_1Gray_Portrait) epd.delay_ms(500) epd.image1Gray_Portrait.vline(10, 60, 60, epd.black) epd.image1Gray_Portrait.vline(90, 60, 60, epd.black) epd.image1Gray_Portrait.hline(10, 60, 80, epd.black) epd.image1Gray_Portrait.hline(10, 120, 80, epd.black) epd.image1Gray_Portrait.line(10, 60, 90, 120, epd.black) epd.image1Gray_Portrait.line(90, 60, 10, 120, epd.black) epd.display_Fast(epd.buffer_1Gray_Portrait) epd.delay_ms(500) epd.image1Gray_Portrait.rect(10, 136, 50, 80, epd.black) epd.image1Gray_Portrait.fill_rect(70, 136, 50, 80, epd.black) epd.display_Fast(epd.buffer_1Gray_Portrait) epd.delay_ms(500) for i in range(0, 10): epd.image1Gray_Portrait.fill_rect(60, 240, 40, 10, 0xff) epd.image1Gray_Portrait.text(str(i), 80, 241, 0x00) epd.display_Partial(epd.buffer_1Gray_Portrait) epd.init_4Gray() epd.image4Gray.fill_rect(0, 0, 175, 68, epd.black) epd.image4Gray.text('GRAY1',10, 30, epd.white) epd.image4Gray.fill_rect(0, 68, 175, 68, epd.darkgray) epd.image4Gray.text('GRAY2',10, 98, epd.grayish) epd.image4Gray.fill_rect(0, 136, 175, 68, epd.grayish) epd.image4Gray.text('GRAY3',10, 166, epd.darkgray) epd.image4Gray.fill_rect(0, 204, 175, 68, epd.white) epd.image4Gray.text('GRAY4',10, 234, epd.black) epd.display_4Gray(epd.buffer_4Gray) epd.delay_ms(500) epd.init() epd.clear() epd.image1Gray_Landscape.text("Waveshare", 5, 5, epd.black) epd.image1Gray_Landscape.text("Pico_ePaper-2.7", 5, 20, epd.black) epd.image1Gray_Landscape.text("Raspberry Pico", 5, 35, epd.black) epd.display_Landscape(epd.buffer_1Gray_Landscape) epd.delay_ms(500) epd.clear() print("Sleep") epd.sleep()