# ***************************************************************************** # * | File : Pico_ePaper-7.5.py # * | Author : Waveshare team # * | Function : Electronic paper driver # * | Info : # *---------------- # * | This version: V1.0 # * | Date : 2021-05-27 # # | 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 = 800 EPD_HEIGHT = 480 RST_PIN = 12 DC_PIN = 8 CS_PIN = 9 BUSY_PIN = 13 class EPD_7in5: 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.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.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 WaitUntilIdle(self): print("e-Paper busy") while(self.digital_read(self.busy_pin) == 0): # Wait until the busy_pin goes LOW self.send_command(0x71) self.delay_ms(20) self.delay_ms(20) print("e-Paper busy release") def TurnOnDisplay(self): self.send_command(0x12) # DISPLAY REFRESH self.delay_ms(100) #!!!The delay here is necessary, 200uS at least!!! self.WaitUntilIdle() def init(self): 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(0x28) #VDH=15V self.send_data(0x17) #VDL=-15V self.send_command(0x04) #POWER ON self.delay_ms(100) self.WaitUntilIdle() self.send_command(0X00) #PANNEL SETTING self.send_data(0x1F) #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) # If the screen appears gray, use the annotated initialization command self.send_command(0X50) self.send_data(0x10) self.send_data(0x07) # self.send_command(0X50) # self.send_data(0x10) # self.send_data(0x17) # self.send_command(0X52) # self.send_data(0x03) self.send_command(0X60) #TCON SETTING self.send_data(0x22) # EPD hardware init end return 0 def init_fast(self): self.reset() self.send_command(0X00) #PANNEL SETTING self.send_data(0x1F) #KW-3f KWR-2F BWROTP 0f BWOTP 1f # If the screen appears gray, use the annotated initialization command self.send_command(0X50) self.send_data(0x10) self.send_data(0x07) # self.send_command(0X50) # self.send_data(0x10) # self.send_data(0x17) # self.send_command(0X52) # self.send_data(0x03) self.send_command(0x04) #POWER ON self.delay_ms(100) self.WaitUntilIdle() #waiting for the electronic paper IC to release the idle signal #Enhanced display drive(Add 0x06 command) self.send_command(0x06) #Booster Soft Start self.send_data (0x27) self.send_data (0x27) self.send_data (0x18) self.send_data (0x17) self.send_command(0xE0) self.send_data(0x02) self.send_command(0xE5) self.send_data(0x5A) # EPD hardware init end return 0 def init_part(self): self.reset() self.send_command(0X00) #PANNEL SETTING self.send_data(0x1F) #KW-3f KWR-2F BWROTP 0f BWOTP 1f self.send_command(0x04) #POWER ON self.delay_ms(100) self.WaitUntilIdle() #waiting for the electronic paper IC to release the idle signal self.send_command(0xE0) self.send_data(0x02) self.send_command(0xE5) self.send_data(0x6E) # EPD hardware init end return 0 # The feature will only be available on screens sold after 24/10/23 def init_4Gray(self): # EPD hardware init start self.reset() self.send_command(0X00) #PANNEL SETTING self.send_data(0x1F) #KW-3f KWR-2F BWROTP 0f BWOTP 1f self.send_command(0X50) self.send_data(0x10) self.send_data(0x07) self.send_command(0x04) #POWER ON self.delay_ms(100) self.WaitUntilIdle() #waiting for the electronic paper IC to release the idle signal #Enhanced display drive(Add 0x06 command) self.send_command(0x06) #Booster Soft Start self.send_data (0x27) self.send_data (0x27) self.send_data (0x18) self.send_data (0x17) self.send_command(0xE0) self.send_data(0x02) self.send_command(0xE5) self.send_data(0x5F) # EPD hardware init end return 0 def Clear(self): high = self.height if( self.width % 8 == 0) : wide = self.width // 8 else : wide = self.width // 8 + 1 self.send_command(0x10) for i in range(0, wide): self.send_data1([0xff] * high) self.send_command(0x13) for i in range(0, wide): self.send_data1([0x00] * high) self.TurnOnDisplay() def ClearBlack(self): high = self.height if( self.width % 8 == 0) : wide = self.width // 8 else : wide = self.width // 8 + 1 self.send_command(0x10) for i in range(0, wide): self.send_data1([0x00] * high) self.send_command(0x13) for i in range(0, wide): self.send_data1([0xff] * high) self.TurnOnDisplay() def display(self,Image): high = self.height if( self.width % 8 == 0) : wide = self.width // 8 else : wide = self.width // 8 + 1 self.send_command(0x10) for i in range(0, wide): self.send_data1(Image[(i * high) : ((i+1) * high)]) self.send_command(0x13) for j in range(high): for i in range(wide): self.send_data(~Image[i + j * wide]) self.TurnOnDisplay() 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) self.send_command(0x13) for j in range(Height): for i in range(Width): self.send_data(~Image[i + j * Width]) self.send_command(0x12) self.delay_ms(100) self.WaitUntilIdle() def display_4Gray(self, image): self.send_command(0x10) for i in range(0, 48000): 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) self.send_command(0x13) for i in range(0, 48000): 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.send_command(0x12) self.delay_ms(100) self.WaitUntilIdle() def sleep(self): self.send_command(0x50) self.send_data(0XF7) self.send_command(0x02) # power off self.WaitUntilIdle() self.send_command(0x07) # deep sleep self.send_data(0xa5) if __name__=='__main__': epd = EPD_7in5() epd.Clear() epd.image1Gray.fill(0xFF) epd.image1Gray.text("Waveshare", 5, 10, 0x00) epd.image1Gray.text("Pico_ePaper-7.5", 5, 40, 0x00) epd.image1Gray.text("Raspberry Pico", 5, 70, 0x00) epd.display(epd.buffer_1Gray) epd.delay_ms(5000) epd.image1Gray.vline(10, 90, 60, 0x00) epd.image1Gray.vline(120, 90, 60, 0x00) epd.image1Gray.hline(10, 90, 110, 0x00) epd.image1Gray.hline(10, 150, 110, 0x00) epd.image1Gray.line(10, 90, 120, 150, 0x00) epd.image1Gray.line(120, 90, 10, 150, 0x00) epd.display(epd.buffer_1Gray) epd.delay_ms(5000) epd.image1Gray.rect(10, 180, 50, 80, 0x00) epd.image1Gray.fill_rect(70, 180, 50, 80, 0x00) epd.display(epd.buffer_1Gray) epd.delay_ms(5000) epd.image1Gray.fill_rect(250, 150, 480, 20, 0x00) epd.image1Gray.fill_rect(250, 310, 480, 20, 0x00) epd.image1Gray.fill_rect(400, 0, 20, 480, 0x00) epd.image1Gray.fill_rect(560, 0, 20, 480, 0x00) for j in range(0, 3): for i in range(0, 15): epd.image1Gray.line(270+j*160+i, 20+j*160, 375+j*160+i, 140+j*160, 0x00) for i in range(0, 15): epd.image1Gray.line(375+j*160+i, 20+j*160, 270+j*160+i, 140+j*160, 0x00) for i in range(0, 15): epd.image1Gray.line(270+j*160, 20+j*160+i, 390+j*160, 125+j*160+i, 0x00) for i in range(0, 15): epd.image1Gray.line(270+j*160, 125+j*160+i, 390+j*160, 20+j*160+i, 0x00) epd.image1Gray.fill_rect(270, 190, 100, 100, 0x00) epd.image1Gray.fill_rect(270, 350, 100, 100, 0x00) epd.display(epd.buffer_1Gray) epd.delay_ms(5000) # epd.init_part() # for i in range(0, 10): # epd.image1Gray.fill_rect(40, 260, 40, 10, 0x00) # epd.image1Gray.text(str(i), 60, 260, 0xFF) # epd.display_Partial(epd.buffer_1Gray, 0, 0, 800, 480) # # The feature will only be available on screens sold after 24/10/23 # print("Four grayscale refresh") # epd.init_4Gray() # epd.image4Gray.fill_rect(150, 10, 250, 30, epd.black) # epd.image4Gray.text('GRAY1 with black background',155, 21, epd.white) # epd.image4Gray.text('GRAY2 with white background',155, 51, epd.grayish) # epd.image4Gray.text('GRAY3 with white background',155, 81, epd.darkgray) # epd.image4Gray.text('GRAY4 with white background',155, 111, epd.black) # epd.display_4Gray(epd.buffer_4Gray) # epd.delay_ms(5000) epd.init() epd.Clear() epd.delay_ms(2000) print("sleep") epd.sleep()