# ***************************************************************************** # * | File : Pico_ePaper-7.5-B.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_B: 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.partFlag=1 self.spi = SPI(1) self.spi.init(baudrate=4000_000) self.dc_pin = Pin(DC_PIN, Pin.OUT) self.buffer_black = bytearray(self.height * self.width // 8) self.buffer_red = bytearray(self.height * self.width // 8) self.imageblack = framebuf.FrameBuffer(self.buffer_black, self.width, self.height, framebuf.MONO_HLSB) self.imagered = framebuf.FrameBuffer(self.buffer_red, 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(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 WaitUntilIdle(self): print("e-Paper busy") while(self.digital_read(self.busy_pin) == 0): # Wait until the busy_pin goes LOW 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): # 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(0x04) # POWER ON self.delay_ms(100) self.WaitUntilIdle() self.send_command(0X00) # PANNEL SETTING self.send_data(0x0F) # 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(0x11) 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) return 0; def init_Fast(self): # EPD hardware init start self.reset() self.send_command(0X00) self.send_data(0x0F) self.send_command(0x04) self.delay_ms(100) self.WaitUntilIdle() self.send_command(0x06) 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) self.send_command(0X50) self.send_data(0x11) self.send_data(0x07) return 0 def init_part(self): # EPD hardware init start self.reset() self.send_command(0X00) self.send_data(0x1F) self.send_command(0x04) self.delay_ms(100) self.WaitUntilIdle() self.send_command(0xE0) self.send_data(0x02) self.send_command(0xE5) self.send_data(0x6E) self.send_command(0X50) self.send_data(0xA9) self.send_data(0x07) # 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 ClearRed(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([0xff] * 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([0x00] * high) self.TurnOnDisplay() def display(self): high = self.height if( self.width % 8 == 0) : wide = self.width // 8 else : wide = self.width // 8 + 1 # send black data self.send_command(0x10) for i in range(0, wide): self.send_data1(self.buffer_black[(i * high) : ((i+1) * high)]) # send red data self.send_command(0x13) for i in range(0, wide): self.send_data1(self.buffer_red[(i * high) : ((i+1) * high)]) 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(0x10) #Write Black and White image to RAM for j in range(Height): for i in range(Width): self.send_data(color) self.send_command(0x13) #Write Black and White image to RAM for j in range(Height): for i in range(Width): self.send_data(~color) # self.send_command(0x12) # self.delay_ms(100) # self.WaitUntilIdle() 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) if self.partFlag == 1: self.partFlag = 0 self.send_command(0x10) for i in range(0, Width): self.send_data1([0xFF] * Height) self.send_command(0x13) #Write Black and White image to RAM for i in range(0, Width): self.send_data1(Image[(i * Height) : ((i+1) * Height)]) self.send_command(0x12) self.delay_ms(100) self.WaitUntilIdle() def sleep(self): self.send_command(0x02) # power off self.WaitUntilIdle() self.send_command(0x07) # deep sleep self.send_data(0xa5) if __name__=='__main__': epd = EPD_7in5_B() epd.Clear() epd.imageblack.fill(0xff) epd.imagered.fill(0x00) epd.imageblack.text("Waveshare", 5, 10, 0x00) epd.imagered.text("Pico_ePaper-7.5-B", 5, 40, 0xff) epd.imageblack.text("Raspberry Pico", 5, 70, 0x00) epd.display() epd.delay_ms(5000) epd.imageblack.vline(10, 90, 60, 0x00) epd.imageblack.vline(120, 90, 60, 0x00) epd.imagered.hline(10, 90, 110, 0xff) epd.imagered.hline(10, 150, 110, 0xff) epd.imagered.line(10, 90, 120, 150, 0xff) epd.imagered.line(120, 90, 10, 150, 0xff) epd.display() epd.delay_ms(5000) epd.imageblack.rect(10, 180, 50, 80, 0x00 ) epd.imageblack.fill_rect(70, 180, 50, 80,0x00 ) epd.imagered.rect(10, 300, 50, 80, 0xff ) epd.imagered.fill_rect(70, 300, 50, 80,0xff ) epd.display() epd.delay_ms(5000) for k in range(0, 3): for j in range(0, 3): for i in range(0, 5): epd.imageblack.fill_rect(200+100+j*200, i*20+k*200, 100, 10, 0x00) for i in range(0, 5): epd.imagered.fill_rect(200+0+j*200, i*20+100+k*200, 100, 10, 0xff) epd.display() epd.delay_ms(5000) # # partial update # epd.init() # epd.imageblack.fill(0xff) # epd.display_Base_color(0xFF) # epd.init_part() # for i in range(0, 10): # epd.imageblack.fill_rect(175, 105, 10, 10, 0xff) # epd.imageblack.text(str(i), 177, 106, 0x00) # epd.display_Partial(epd.buffer_black, 0, 0, 800, 480) epd.init() epd.Clear() epd.delay_ms(2000) print("sleep") epd.sleep()