# ***************************************************************************** # * | File : Pico_ePaper-2.9.py # * | Author : Waveshare team # * | Function : Electronic paper driver # * | Info : # *---------------- # * | This version: V1.0 # * | Date : 2021-03-16 # # | 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 = 128 EPD_HEIGHT = 296 RST_PIN = 12 DC_PIN = 8 CS_PIN = 9 BUSY_PIN = 13 WF_PARTIAL_2IN9 = [ 0x0,0x40,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x80,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x40,0x40,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0A,0x0,0x0,0x0,0x0,0x0,0x1, 0x1,0x0,0x0,0x0,0x0,0x0,0x0, 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, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x22,0x22,0x22,0x22,0x22,0x22,0x0,0x0,0x0, 0x22,0x17,0x41,0xB0,0x32,0x36, ] WS_20_30 = [ 0x80, 0x66, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40, 0x0, 0x0, 0x0, 0x10, 0x66, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20, 0x0, 0x0, 0x0, 0x80, 0x66, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40, 0x0, 0x0, 0x0, 0x10, 0x66, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x14, 0x8, 0x0, 0x0, 0x0, 0x0, 0x2, 0xA, 0xA, 0x0, 0xA, 0xA, 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, 0x14, 0x8, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0x0, 0x0, 0x0, 0x22, 0x17, 0x41, 0x0, 0x32, 0x36 ] Gray4 = [ 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x60, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x28, 0x60, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2A, 0x60, 0x15, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x05, 0x14, 0x00, 0x00, 0x1E, 0x1E, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x05, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24, 0x22, 0x22, 0x22, 0x23, 0x32, 0x00, 0x00, 0x00, 0x22, 0x17, 0x41, 0xAE, 0x32, 0x28 ] class EPD_2in9_Portrait(framebuf.FrameBuffer): 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.partial_lut = WF_PARTIAL_2IN9 self.full_lut = WS_20_30 self.Gray4_lut = Gray4 self.spi = SPI(1) self.spi.init(baudrate=4000_000) self.dc_pin = Pin(DC_PIN, Pin.OUT) self.buffer = bytearray(self.height * self.width // 8) self.buffer_4Gray = bytearray(self.height * self.width // 4) self.image4Gray = framebuf.FrameBuffer(self.buffer_4Gray, self.width, self.height, framebuf.GS2_HMSB) super().__init__(self.buffer, self.width, self.height, framebuf.MONO_HLSB) self.init() 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(50) self.digital_write(self.reset_pin, 0) self.delay_ms(2) self.digital_write(self.reset_pin, 1) self.delay_ms(50) 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): # 0: idle, 1: busy self.delay_ms(10) print("e-Paper busy release") def TurnOnDisplay(self): self.send_command(0x22) # DISPLAY_UPDATE_CONTROL_2 self.send_data(0xC7) self.send_command(0x20) # MASTER_ACTIVATION self.ReadBusy() def TurnOnDisplay_Partial(self): self.send_command(0x22) # DISPLAY_UPDATE_CONTROL_2 self.send_data(0x0F) self.send_command(0x20) # MASTER_ACTIVATION self.ReadBusy() def lut(self, lut): self.send_command(0x32) self.send_data1(lut[0:153]) self.ReadBusy() def SetLut(self, lut): self.lut(lut) self.send_command(0x3f) self.send_data(lut[153]) self.send_command(0x03) # gate voltage self.send_data(lut[154]) self.send_command(0x04) # source voltage self.send_data(lut[155]) # VSH self.send_data(lut[156]) # VSH2 self.send_data(lut[157]) # VSL self.send_command(0x2c) # VCOM self.send_data(lut[158]) def SetWindow(self, x_start, y_start, x_end, y_end): self.send_command(0x44) # SET_RAM_X_ADDRESS_START_END_POSITION # x point must be the multiple of 8 or the last 3 bits will be ignored self.send_data((x_start>>3) & 0xFF) self.send_data((x_end>>3) & 0xFF) self.send_command(0x45) # SET_RAM_Y_ADDRESS_START_END_POSITION self.send_data(y_start & 0xFF) self.send_data((y_start >> 8) & 0xFF) self.send_data(y_end & 0xFF) self.send_data((y_end >> 8) & 0xFF) def SetCursor(self, x, y): self.send_command(0x4E) # SET_RAM_X_ADDRESS_COUNTER self.send_data(x & 0xFF) self.send_command(0x4F) # SET_RAM_Y_ADDRESS_COUNTER self.send_data(y & 0xFF) self.send_data((y >> 8) & 0xFF) self.ReadBusy() def init(self): # EPD hardware init start self.reset() self.ReadBusy() self.send_command(0x12) #SWRESET self.ReadBusy() self.send_command(0x01) #Driver output control self.send_data(0x27) self.send_data(0x01) self.send_data(0x00) self.send_command(0x11) #data entry mode self.send_data(0x03) self.SetWindow(0, 0, self.width-1, self.height-1) self.send_command(0x21) # Display update control self.send_data(0x00) self.send_data(0x80) self.SetCursor(0, 0) self.ReadBusy() self.SetLut(self.full_lut) # EPD hardware init end return 0 def init_4Gray(self): self.reset() self.ReadBusy() self.send_command(0x12) #SWRESET self.ReadBusy() self.send_command(0x01) #Driver output control self.send_data(0x27) self.send_data(0x01) self.send_data(0x00) self.send_command(0x11) #data entry mode self.send_data(0x03) self.SetWindow(8, 0, self.width, self.height-1) self.send_command(0x3C) self.send_data(0x04) self.SetCursor(1, 0) self.ReadBusy() self.SetLut(self.Gray4_lut) # EPD hardware init end return 0 def display(self, image): if (image == None): return self.send_command(0x24) # WRITE_RAM self.send_data1(image) self.TurnOnDisplay() def display_Base(self, image): if (image == None): return self.send_command(0x24) # WRITE_RAM self.send_data1(image) self.send_command(0x26) # WRITE_RAM self.send_data1(image) self.TurnOnDisplay() def display_4Gray(self, image): self.send_command(0x24) for i in range(0, 4736): 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, 4736): 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() def display_Partial(self, image): if (image == None): return self.digital_write(self.reset_pin, 0) self.delay_ms(2) self.digital_write(self.reset_pin, 1) self.delay_ms(2) self.SetLut(self.partial_lut) self.send_command(0x37) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_data(0x40) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_command(0x3C) #BorderWaveform self.send_data(0x80) self.send_command(0x22) self.send_data(0xC0) self.send_command(0x20) self.ReadBusy() self.SetWindow(0, 0, self.width - 1, self.height - 1) self.SetCursor(0, 0) self.send_command(0x24) # WRITE_RAM self.send_data1(image) self.TurnOnDisplay_Partial() def Clear(self, color): self.send_command(0x24) # WRITE_RAM self.send_data1([color] * self.height * int(self.width / 8)) self.send_command(0x26) # WRITE_RAM self.send_data1([color] * self.height * int(self.width / 8)) self.TurnOnDisplay() def sleep(self): self.send_command(0x10) # DEEP_SLEEP_MODE self.send_data(0x01) self.delay_ms(2000) self.module_exit() class EPD_2in9_Landscape(framebuf.FrameBuffer): 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.partial_lut = WF_PARTIAL_2IN9 self.full_lut = WS_20_30 self.spi = SPI(1) self.spi.init(baudrate=4000_000) self.dc_pin = Pin(DC_PIN, Pin.OUT) self.buffer = bytearray(self.height * self.width // 8) super().__init__(self.buffer, self.height, self.width, framebuf.MONO_VLSB) self.init() 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(50) self.digital_write(self.reset_pin, 0) self.delay_ms(2) self.digital_write(self.reset_pin, 1) self.delay_ms(50) 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): # 0: idle, 1: busy self.delay_ms(10) print("e-Paper busy release") def TurnOnDisplay(self): self.send_command(0x22) # DISPLAY_UPDATE_CONTROL_2 self.send_data(0xC7) self.send_command(0x20) # MASTER_ACTIVATION self.ReadBusy() def TurnOnDisplay_Partial(self): self.send_command(0x22) # DISPLAY_UPDATE_CONTROL_2 self.send_data(0x0F) self.send_command(0x20) # MASTER_ACTIVATION self.ReadBusy() def lut(self, lut): self.send_command(0x32) self.send_data1(lut[0:153]) self.ReadBusy() def SetLut(self, lut): self.lut(lut) self.send_command(0x3f) self.send_data(lut[153]) self.send_command(0x03) # gate voltage self.send_data(lut[154]) self.send_command(0x04) # source voltage self.send_data(lut[155]) # VSH self.send_data(lut[156]) # VSH2 self.send_data(lut[157]) # VSL self.send_command(0x2c) # VCOM self.send_data(lut[158]) def SetWindow(self, x_start, y_start, x_end, y_end): self.send_command(0x44) # SET_RAM_X_ADDRESS_START_END_POSITION # x point must be the multiple of 8 or the last 3 bits will be ignored self.send_data((x_start>>3) & 0xFF) self.send_data((x_end>>3) & 0xFF) self.send_command(0x45) # SET_RAM_Y_ADDRESS_START_END_POSITION self.send_data(y_start & 0xFF) self.send_data((y_start >> 8) & 0xFF) self.send_data(y_end & 0xFF) self.send_data((y_end >> 8) & 0xFF) def SetCursor(self, x, y): self.send_command(0x4E) # SET_RAM_X_ADDRESS_COUNTER self.send_data(x & 0xFF) self.send_command(0x4F) # SET_RAM_Y_ADDRESS_COUNTER self.send_data(y & 0xFF) self.send_data((y >> 8) & 0xFF) self.ReadBusy() def init(self): # EPD hardware init start self.reset() self.ReadBusy() self.send_command(0x12) #SWRESET self.ReadBusy() self.send_command(0x01) #Driver output control self.send_data(0x27) self.send_data(0x01) self.send_data(0x00) self.send_command(0x11) #data entry mode self.send_data(0x07) self.SetWindow(0, 0, self.width-1, self.height-1) self.send_command(0x21) # Display update control self.send_data(0x00) self.send_data(0x80) self.SetCursor(0, 0) self.ReadBusy() self.SetLut(self.full_lut) # EPD hardware init end return 0 def display(self, image): if (image == None): return self.send_command(0x24) # WRITE_RAM for j in range(int(self.width / 8) - 1, -1, -1): for i in range(0, self.height): self.send_data(image[i + j * self.height]) self.TurnOnDisplay() def display_Base(self, image): if (image == None): return self.send_command(0x24) # WRITE_RAM for j in range(int(self.width / 8) - 1, -1, -1): for i in range(0, self.height): self.send_data(image[i + j * self.height]) self.send_command(0x26) # WRITE_RAM for j in range(int(self.width / 8) - 1, -1, -1): for i in range(0, self.height): self.send_data(image[i + j * self.height]) self.TurnOnDisplay() def display_Partial(self, image): if (image == None): return self.digital_write(self.reset_pin, 0) self.delay_ms(2) self.digital_write(self.reset_pin, 1) self.delay_ms(2) self.SetLut(self.partial_lut) self.send_command(0x37) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_data(0x40) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_command(0x3C) #BorderWaveform self.send_data(0x80) self.send_command(0x22) self.send_data(0xC0) self.send_command(0x20) self.ReadBusy() self.SetWindow(0, 0, self.width - 1, self.height - 1) self.SetCursor(0, 0) self.send_command(0x24) # WRITE_RAM for j in range(int(self.width / 8) - 1, -1, -1): for i in range(0, self.height): self.send_data(image[i + j * self.height]) self.TurnOnDisplay_Partial() def Clear(self, color): self.send_command(0x24) # WRITE_RAM self.send_data1([color] * self.height * int(self.width / 8)) self.send_command(0x26) # WRITE_RAM self.send_data1([color] * self.height * int(self.width / 8)) self.TurnOnDisplay() def sleep(self): self.send_command(0x10) # DEEP_SLEEP_MODE self.send_data(0x01) self.delay_ms(2000) self.module_exit() if __name__=='__main__': # Landscape epd = EPD_2in9_Landscape() epd.Clear(0xff) epd.fill(0xff) epd.text("Waveshare", 5, 10, 0x00) epd.text("Pico_ePaper-2.9", 5, 20, 0x00) epd.text("Raspberry Pico", 5, 30, 0x00) epd.display(epd.buffer) epd.delay_ms(2000) epd.vline(10, 40, 60, 0x00) epd.vline(120, 40, 60, 0x00) epd.hline(10, 40, 110, 0x00) epd.hline(10, 100, 110, 0x00) epd.line(10, 40, 120, 100, 0x00) epd.line(120, 40, 10, 100, 0x00) epd.display(epd.buffer) epd.delay_ms(2000) epd.rect(150, 5, 50, 55, 0x00) epd.fill_rect(150, 65, 50, 115, 0x00) epd.display_Base(epd.buffer) epd.delay_ms(2000) for i in range(0, 10): epd.fill_rect(220, 60, 10, 10, 0xff) epd.text(str(i), 222, 62, 0x00) epd.display_Partial(epd.buffer) # Portrait epd = EPD_2in9_Portrait() epd.Clear(0xff) epd.fill(0xff) epd.text("Waveshare", 5, 10, 0x00) epd.text("Pico_ePaper-2.9", 5, 40, 0x00) epd.text("Raspberry Pico", 5, 70, 0x00) epd.display(epd.buffer) epd.delay_ms(2000) epd.vline(10, 90, 60, 0x00) epd.vline(120, 90, 60, 0x00) epd.hline(10, 90, 110, 0x00) epd.hline(10, 150, 110, 0x00) epd.line(10, 90, 120, 150, 0x00) epd.line(120, 90, 10, 150, 0x00) epd.display(epd.buffer) epd.delay_ms(2000) epd.rect(10, 180, 50, 80, 0x00) epd.fill_rect(70, 180, 50, 80, 0x00) epd.display_Base(epd.buffer) epd.delay_ms(2000) for i in range(0, 10): epd.fill_rect(40, 270, 40, 10, 0xff) epd.text(str(i), 60, 270, 0x00) epd.display_Partial(epd.buffer) epd.init_4Gray() epd.image4Gray.fill_rect(0, 0, 127, 74, epd.black) epd.image4Gray.text('GRAY1',10, 33, epd.white) epd.image4Gray.fill_rect(0, 74, 127, 74, epd.darkgray) epd.image4Gray.text('GRAY2',10, 107, epd.grayish) epd.image4Gray.fill_rect(0, 148, 127, 74, epd.grayish) epd.image4Gray.text('GRAY3',10, 181, epd.darkgray) epd.image4Gray.fill_rect(0, 222, 127, 74, epd.white) epd.image4Gray.text('GRAY4',10, 255, epd.black) epd.display_4Gray(epd.buffer_4Gray) epd.delay_ms(5000) epd.init() epd.Clear(0xff) epd.delay_ms(2000) print("sleep") epd.sleep()