# ***************************************************************************** # * | 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(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.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.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 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): # EPD hardware init start self.reset() 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(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) self.send_command(0X50) # VCOM AND DATA INTERVAL SETTING self.send_data(0x10) self.send_data(0x00) 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 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,blackimage): 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(blackimage[(i * high) : ((i+1) * high)]) self.send_command(0x13) for i in range(0, wide): self.send_data1(blackimage[(i * high) : ((i+1) * high)]) self.TurnOnDisplay() 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() epd.Clear() epd.fill(0x00) epd.text("Waveshare", 5, 10, 0xff) epd.text("Pico_ePaper-7.5", 5, 40, 0xff) epd.text("Raspberry Pico", 5, 70, 0xff) epd.display(epd.buffer) epd.delay_ms(5000) epd.vline(10, 90, 60, 0xff) epd.vline(120, 90, 60, 0xff) epd.hline(10, 90, 110, 0xff) epd.hline(10, 150, 110, 0xff) epd.line(10, 90, 120, 150, 0xff) epd.line(120, 90, 10, 150, 0xff) epd.display(epd.buffer) epd.delay_ms(5000) epd.rect(10, 180, 50, 80, 0xff) epd.fill_rect(70, 180, 50, 80, 0xff) epd.display(epd.buffer) epd.delay_ms(5000) epd.fill_rect(250, 150, 480, 20, 0xff) epd.fill_rect(250, 310, 480, 20, 0xff) epd.fill_rect(400, 0, 20, 480, 0xff) epd.fill_rect(560, 0, 20, 480, 0xff) for j in range(0, 3): for i in range(0, 15): epd.line(270+j*160+i, 20+j*160, 375+j*160+i, 140+j*160, 0xff) for i in range(0, 15): epd.line(375+j*160+i, 20+j*160, 270+j*160+i, 140+j*160, 0xff) for i in range(0, 15): epd.line(270+j*160, 20+j*160+i, 390+j*160, 125+j*160+i, 0xff) for i in range(0, 15): epd.line(270+j*160, 125+j*160+i, 390+j*160, 20+j*160+i, 0xff) epd.fill_rect(270, 190, 100, 100, 0xff) epd.fill_rect(270, 350, 100, 100, 0xff) epd.display(epd.buffer) epd.delay_ms(5000) epd.Clear() epd.delay_ms(2000) print("sleep") epd.sleep()